[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN116218162A - PET extinction master batch and preparation method thereof - Google Patents

PET extinction master batch and preparation method thereof Download PDF

Info

Publication number
CN116218162A
CN116218162A CN202310106627.4A CN202310106627A CN116218162A CN 116218162 A CN116218162 A CN 116218162A CN 202310106627 A CN202310106627 A CN 202310106627A CN 116218162 A CN116218162 A CN 116218162A
Authority
CN
China
Prior art keywords
pet
extinction
parts
master batch
component resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310106627.4A
Other languages
Chinese (zh)
Inventor
何庆东
郑少华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Heyun Specialty Materials Co ltd
Original Assignee
Foshan Heyun Specialty Materials Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Heyun Specialty Materials Co ltd filed Critical Foshan Heyun Specialty Materials Co ltd
Priority to CN202310106627.4A priority Critical patent/CN116218162A/en
Publication of CN116218162A publication Critical patent/CN116218162A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/10—Homopolymers or copolymers of propene
    • C08J2423/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
    • C08J2425/04—Homopolymers or copolymers of styrene
    • C08J2425/06—Polystyrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2435/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2435/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Derivatives of such polymers
    • C08J2435/06—Copolymers with vinyl aromatic monomers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/04—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2477/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2477/06—Polyamides derived from polyamines and polycarboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention discloses a PET extinction master batch and a preparation method thereof, and relates to the technical field of high polymer materials. The PET extinction master batch comprises the following raw materials in parts by weight: 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent; the first component resin is any one or the combination of two of polyethylene terephthalate and polyethylene terephthalate copolymer; the second component resin is any one or a combination of more of nylon, polyolefin, polycarbonate and styrene resin. The PET extinction master batch has uniform extinction effect and excellent dispersion performance in the later film forming process, and can solve the problems of poor extinction uniformity and easy falling-off of inorganic powder particles of the traditional inorganic powder BOPET extinction film when being applied to BOPET extinction film preparation.

Description

PET extinction master batch and preparation method thereof
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a PET extinction master batch and a preparation method thereof.
Background
The BOPP extinction film is a functional film with an extinction surface layer (containing PP material) on the surface, can give soft, comfortable and hazy visual effects to people, is widely applied to various composite packaging materials, can be printed, compounded, surface gold stamping treatment and the like, has huge production capacity at present, and becomes an important packaging material in daily life of people. Because BOPP film melting point and stiffness are lower, in high temperature application occasion, BOPP film use effectiveness will obviously reduce even disappear, and in particular when being applied to the extinction treatment of leather surface, BOPP extinction film has limited transferability, so a material substitution with better temperature resistance and rigidity is needed to be urgently needed, and the biaxially oriented polyester film (BOPET) is hopeful to replace BOPP extinction film at present, and the biaxially oriented polyester film has high melting point (about 250 degrees), high rigidity (more than 4000Mpa of elastic modulus) and is very suitable for extinction transfer treatment process under high heat environment.
At present, a BOPET extinction film is generally formed by adding part of inorganic powder (such as titanium dioxide, silicon dioxide, calcium carbonate and the like) into a raw material, and then forming a rough and roughened film surface on the surface after biaxial stretching, so that an extinction effect is formed, and the extinction uniformity of the prepared BOPET extinction film is poor easily caused by poor dispersibility of the inorganic powder.
Disclosure of Invention
Aiming at the problems of the background technology, the invention aims to provide a PET extinction master batch which has uniform extinction effect and excellent dispersion performance in the later film forming processing, and the problems that the extinction uniformity of the traditional inorganic powder BOPET extinction film is poor and inorganic powder particles are easy to fall off are solved by applying the PET extinction master batch to the preparation of the BOPET extinction film.
The invention further aims to provide a preparation method of the PET extinction master batch, which is used for preparing the PET extinction master batch, so that the problem of filter screen blockage is not easy to occur in the preparation process, the production efficiency can be effectively improved, and the problem of low production efficiency caused by filter screen blockage easily in the preparation process of the traditional inorganic powder BOPET extinction film is solved.
To achieve the purpose, the invention adopts the following technical scheme:
the PET extinction master batch comprises the following raw materials in parts by weight: 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent;
the first component resin is any one or the combination of two of polyethylene terephthalate and polyethylene terephthalate copolymer;
the second component resin is any one or a combination of more of nylon, polyolefin, polycarbonate and styrene resin.
Preferably, the melting temperature of the first component resin is 200 to 300 ℃ and the intrinsic viscosity is 0.65 to 5dL/g.
Preferably, the nylon is any one or a combination of a plurality of aliphatic nylon, aromatic nylon and copolymers thereof; the relative viscosity of the nylon is 1-10.
Preferably, the polyolefin is any one or a combination of a plurality of polypropylene, polyethylene, polybutylene and polypropylene homopolymer;
the polyolefin has a melt index of 1 to 20g/10min at 230 ℃ and 2.16 kg.
Preferably, the styrene resin is any one or a combination of a plurality of general-purpose polystyrene, MBS resin, SAN resin and impact-resistant polystyrene.
Preferably, the auxiliary agent is a compatibilizer auxiliary agent and/or a special auxiliary agent;
the increase Rong Chuji is any one of maleic anhydride grafted polyolefin, styrene-maleic anhydride copolymer and polyethylene terephthalate;
the special auxiliary agent is maleic anhydride-acrylic ester copolymer.
The preparation method of the PET extinction master batch is used for preparing the PET extinction master batch and comprises the following steps of:
(1) Uniformly mixing 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent to obtain a mixed material;
(2) And (3) plasticizing and fusing the mixed materials, extruding the mixed materials to prepare material strips, and granulating the cooled material strips to obtain the PET extinction master batch.
Preferably, the operation method of step (1) is as follows: sequentially adding 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent into a stirrer, wherein the stirring speed of the stirrer is 100-300 r/min, the stirring time is 1-10 min, and fully and uniformly mixing to obtain a mixed material.
Preferably, the mixed material is put into a double-screw extruder, the mixed material is fully plasticized and fused under the high-temperature state and the high-speed shearing action of a screw, the strip is extruded through a porous die head, the strip is prepared after cooling water, and the cooled strip is subjected to granulating treatment in a granulator; wherein the temperature of the double-screw extruder is 200-300 ℃, the temperature of the porous die head is 230-300 ℃, and the rotating speed of the granulator is 100-300 r/min.
The technical scheme has the following effects:
1. the PET extinction master batch is formed by blending and granulating two or more special resins (namely, a first component resin and a second component resin), and the first component resin and the second component resin shrink in different degrees after being melted and cooled, and due to the fact that shrinkage rate differences exist in the PET extinction master batch, the surface layer of a product prepared from the PET extinction master batch can generate uneven shapes, and therefore extinction effect is achieved. The PET extinction master batch of the technical scheme is used as a special functional extinction material, so that the BOPET film has an even and fine extinction surface layer, and a good extinction surface is still maintained under the condition of high temperature (more than 120 ℃).
2. The PET extinction master batch is blended by adopting a high-molecular alloy method, the mixing proportion of the first component resin and the second component resin is high, inorganic powder is not required to be added into the PET extinction master batch, and the mutual miscibility of organic matters is better than that of the inorganic powder, so that the surface of a product prepared by adopting the PET extinction master batch has a uniform extinction effect; meanwhile, the PET extinction master batch is in a softening flow state at high temperature, is easy to pass through a filter screen, is stable in extrusion, can not block the filter screen, and meanwhile, the polymers of the first component resin and the second component resin are limited in thermal movement capacity after being cooled, so that migration and precipitation of small molecular organic matters can not occur. Therefore, the PET extinction master batch adopting the technical scheme is used for preparing the extinction film, the defect of poor temperature resistance of the traditional BOPP extinction film can be overcome, meanwhile, the problems of poor extinction uniformity, insufficient extinction degree and easy falling of particles of the traditional inorganic powder BOPET extinction film are also solved, other properties of the film are not adversely affected, the rapid and stable production of the extinction film is ensured, and the overall manufacturing cost of the product is reduced while the production efficiency is improved.
3. The PET extinction master batch of the technical scheme can be suitable for the production of high-grade BOPET extinction films, is further widely suitable for various packaging materials, especially for food and medicine packaging, and the prepared film product has dimensional stability and heat resistance, and is especially suitable for high-temperature occasions of leather extinction treatment.
Drawings
FIG. 1 is a SEM image of BOPET matt film in effect example 1;
FIG. 2 is a scanning electron microscope SEM image of the BOPET matt film of comparative example 1;
fig. 3 is a SEM image of comparative example 2.
Detailed Description
The technical scheme of the invention is further described below with reference to the specific embodiments.
The PET extinction master batch comprises the following raw materials in parts by weight: 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent;
the first component resin is any one or the combination of two of polyethylene terephthalate and polyethylene terephthalate copolymer;
the second component resin is any one or a combination of more of nylon, polyolefin, polycarbonate and styrene resin.
It is worth to say that, the PET extinction master batch of this technical scheme adopts two or more than two special resins (namely first component resin and second component resin) to blend and granulate, and first component resin and second component resin have different degree shrinkage after the melting cooling, for example shrinkage factor of polyethylene terephthalate (PET) is 1.2% -2.0%, shrinkage factor of nylon is 1.0% -1.5%, shrinkage factor of polyolefin is 1.2% -2.5%, shrinkage factor of styrene resin is 0.3% -0.6%, because each resin has shrinkage difference after the melting cooling in PET extinction master batch, make the top layer of the product that adopts PET extinction master batch of this technical scheme can produce the concave-convex after cooling, thereby reach extinction effect. The PET extinction master batch of the technical scheme is used as a special functional extinction material, so that the BOPET film has an even and fine extinction surface layer, and a good extinction surface is still maintained under the condition of high temperature (more than 120 ℃).
Further illustrates that the PET extinction master batch of the technical scheme has the advantages of uniform extinction effect, good high temperature resistance, good extinction effect under the high temperature condition, low net passing pressure, less film breaking times, no precipitation and the like caused by excellent dispersion performance, the PET extinction master batch of the technical scheme adopts a high molecular alloy method for blending, the mixing proportion of the first component resin and the second component resin is high, inorganic powder is not needed to be added in the PET extinction master batch, and the mutual miscibility of organic matters is better than that of the inorganic powder, so that the surface of a product prepared from the PET extinction master batch has uniform extinction effect; meanwhile, the PET extinction master batch is in a softening flow state at high temperature, is easy to pass through a filter screen, is stable in extrusion, can not block the filter screen, and meanwhile, the polymers of the first component resin and the second component resin are limited in thermal movement capacity after being cooled, so that migration and precipitation of small molecular organic matters can not occur. Therefore, the PET extinction master batch adopting the technical scheme is used for preparing the extinction film, the defect of poor temperature resistance of the traditional BOPP extinction film can be overcome, meanwhile, the problems of poor extinction uniformity, insufficient extinction degree and easy falling of particles of the traditional inorganic powder BOPET extinction film are also solved, other properties of the film are not adversely affected, the rapid and stable production of the extinction film is ensured, and the overall manufacturing cost of the product is reduced while the production efficiency is improved. Therefore, the PET extinction master batch of the technical scheme can be suitable for the production of high-grade BOPET extinction films, is further widely suitable for various packaging materials, especially for food and medicine packaging, and the prepared film product has dimensional stability and heat resistance, and is especially suitable for high-temperature occasions of leather extinction treatment.
Further explaining, the PET extinction master batch of the technical scheme comprises 50-90 parts of first component resin, 10-50 parts of second component resin, 0-5 parts of compatibilizer auxiliary agent and 0-1 part of special auxiliary agent, wherein the content of the first component resin 50-90 parts and the second component resin 10-50 parts can be set according to the extinction degree required by the product. If the consumption of the first component resin is less than 50 parts, the extinction effect is not obvious, and the use requirement of a user is not met; if the amount of the first component resin is too much 90 parts, the dispersibility and other mechanical properties of the whole material become poor, so that the extinction uniformity of the extinction film prepared by adopting the PET extinction master batch is poor, the whole effect and quality are reduced, and the extinction film is not suitable for preparing high-grade BOPET extinction films.
Further, the first component resin has a melting temperature of 200 to 300℃and an intrinsic viscosity of 0.65 to 5dL/g.
It is worth to be noted that, in the technical scheme, the intrinsic viscosity of the first component resin is set according to a biaxial stretching stage process, and if the intrinsic viscosity of the first component resin is too low and is lower than 0.65dL/g, the fluidity of the first component resin is too high, the melt strength is poor, the extrusion is unstable, and film formation is difficult; if the intrinsic viscosity of the first component resin is too high, if it is higher than 5dL/g, the fluidity of the first component resin is low, smooth extrusion is difficult, the equipment load is large at the time of melting, and film formation is not facilitated, and therefore, the intrinsic viscosity needs to be controlled in the range of 0.65 to 5dL/g.
Further, the nylon is any one or a combination of a plurality of aliphatic nylon, aromatic nylon and copolymers thereof; the relative viscosity of the nylon is 1-10.
Further illustratively, the polyolefin is any one or a combination of polypropylene, polyethylene, polybutylene, and polypropylene homopolymer;
the polyolefin has a melt index of 1 to 20g/10min at 230 ℃ and 2.16 kg.
Further, the styrene resin is any one or a combination of a plurality of general-purpose polystyrene, MBS resin, SAN resin and impact-resistant polystyrene.
In the embodiment, the second component resin is any one or a combination of more of nylon, polyolefin and styrene resin, wherein nylon with relative viscosity of 1-10, polyolefin with melt index of 1-20 g/10min (230 ℃ C., 2.16 kg) and styrene resin with melt flow rate of 1-5 g/10min (200 ℃ C., 5 kg) are selected, and materials with the above parameter ranges are selected to meet the requirement of the post biaxially oriented film processing technology, so that the processing stability and the forming are facilitated.
Preferably, the nylon in the technical scheme can be any one or a combination of a plurality of aliphatic or aromatic nylon and copolymers thereof, and the polyolefin can be any one or a combination of a plurality of polypropylene, polyethylene, polybutylene and copolymers thereof; the styrene resin may be GPPS, MBS, SAN, HIPS or the like.
Specifically, general-purpose polystyrene is abbreviated as GPPS; MBS resin is a terpolymer of methyl methacrylate (M), butadiene (B) and styrene (S), and has processing modification and toughening effects; the SAN resin is Styrene Acrylonitrile, the Chinese name styrene-acrylonitrile copolymer is colorless and transparent, and has high mechanical strength, and the SAN resin has good chemical stability; impact-resistant polystyrene is called HIPS for short and benzene is changed for common name.
Further description, the auxiliary agent is a compatibilizer auxiliary agent and/or a special auxiliary agent;
rong Chuji is any one of maleic anhydride grafted polyolefin, styrene-maleic anhydride copolymer and polyethylene terephthalate;
the special auxiliary agent is maleic anhydride-acrylic ester copolymer.
In the technical scheme, the special auxiliary agent is an exchange reaction inhibitor, in particular to a maleic anhydride-acrylic ester copolymer, which can prevent the exchange reaction of esters (such as polyethylene terephthalate, polyethylene terephthalate and the like) and amides (nylon) from causing molecular chain breakage when the esters are mixed in a high-temperature molten state.
The preparation method of the PET extinction master batch is used for preparing the PET extinction master batch and comprises the following steps of:
(1) Uniformly mixing 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent to obtain a mixed material;
(2) And (3) plasticizing and fusing the mixed materials, extruding the mixed materials to prepare material strips, and granulating the cooled material strips to obtain the PET extinction master batch.
It is worth pointing out that, because the existing extinction film mainly realizes extinction effect by adding inorganic powder, such as silica and refractory organosilicon crosslinked microspheres, the powder is extremely easy to cause blanking layering when being mixed with PET slices, particles are agglomerated when being mixed in a melting way, a filter screen is easy to be blocked when the film is formed, micropores are formed by stretching the film, the risks of film rupture and falling off are increased, the proportion of the inorganic powder is generally required to be reduced when the extinction effect is greatly compromised in practical application. In order to solve the problems, the PET extinction master batch of the invention mainly adopts the combination of a plurality of organic resins without adding inorganic powder, the first component resin and the second component resin are fully fused and mixed to form a surface state which is mutually interweaved, and after cooling, the surface is formed into uneven shape to achieve the extinction effect, and the inorganic powder is not required to be added, so the problems caused by the addition of the inorganic powder can be avoided.
The PET extinction master batch is prepared by fully mixing all resin components in a high-speed stirrer, and then melting, plasticizing, extruding, bracing, cooling and granulating in a double-screw granulator. The PET extinction master batch prepared by the technical scheme is suitable for preparing BOPET extinction films, and the PET extinction master batch is used as a special functional extinction material, so that the BOPET extinction film has an even and fine extinction surface layer, and meanwhile, the PET extinction master batch is resistant to high-temperature energy consumption and still keeps a good extinction surface at a high temperature (above 120 ℃). Therefore, the technical scheme can provide a production raw material of the BOPET extinction film which is environment-friendly, simple, quick, continuous and high in yield, and overcomes the defects of unstable quality, low yield, complicated process, high cost and the like of products prepared by the traditional process.
Specifically, the PET extinction master batch prepared by the technical scheme is semitransparent to light white small cylindrical or flaky particles.
Further illustratively, the method of operation of step (1) is as follows: sequentially adding 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent into a stirrer, wherein the stirring speed of the stirrer is 100-300 r/min, the stirring time is 1-10 min, and fully and uniformly mixing to obtain a mixed material.
The method comprises the steps of further describing, putting the mixed material into a double-screw extruder, fully plasticizing and fusing the mixed material under the high-temperature state and the high-speed shearing action of a screw, extruding the mixed material through a porous die head, cooling the mixed material with cooling water to obtain a material strip, and granulating the cooled material strip in a granulator; wherein the temperature of the double-screw extruder is 200-300 ℃, the temperature of the porous die head is 230-300 ℃, and the rotating speed of the granulator is 100-300 r/min.
In one embodiment of the invention, the process for preparing the PET matting masterbatch is as follows:
(1) The resin which is easy to absorb moisture in the components is subjected to vacuum drying treatment in advance, such as PET, nylon and the like, the drying temperature is 120 ℃, the drying time is 5-20 hours, the moisture is ensured to be less than 1000ppm, and the molecular degradation caused by hydrolysis is prevented. The first component resin, the second component resin and the auxiliary agent are respectively added into a high-speed stirrer according to a certain proportion, and are fully mixed and discharged for standby under a certain stirring speed and time to obtain a mixed material;
(2) Putting the mixed material obtained in the previous step into a hopper of a double-screw extruder, setting the temperature of each section of a barrel of the double-screw extruder, starting the double-screw extruder at a certain rotating speed, and simultaneously starting feeding; the materials are fully plasticized and fused under the high-temperature state and the high-speed shearing action of the screw, are discharged from the porous die head and immediately enter the cooling water for cooling, the cooled material strips are pulled into a high-speed rotary granulator to be cut into small particles with uniform shape and color, and the small particles are dried, weighed, packed and put in storage to obtain the PET extinction master batch finished product.
It is worth pointing out that in the production process of the PET extinction master batch in the technical scheme, the stirring speed of the stirrer is 100-300 r/min, and the stirring time is 1-10 min. The diameter of the screw of the double screw extruder is 30-80 mm, the length-diameter ratio is 35-50, the temperature of the double screw extruder is 200-300 ℃, the die head temperature of the double screw extruder is 230-300 ℃, the feeding speed is 10-60 r/min, the rotating speed of the screw is 100-300 r/min, the length of supercooled water is not more than 0.5m, the rotating speed of the granulator is 100-300 r/min, and the prepared PET extinction master batch is packaged by adopting an aluminized composite bag. According to the technical scheme, through the setting of the technical parameters, a better melt mixing state can be achieved, a certain stirring speed, time, screw length-diameter ratio and rotating speed are guaranteed, the materials are well mixed uniformly, in a temperature range set by the technical scheme, the materials can be guaranteed to be fully melted without high-temperature degradation, a certain cooling water length is set to be beneficial to cooling and traction of the material strips, meanwhile, the moisture of a master batch finished product is guaranteed not to be higher, so that the subsequent film forming processing is facilitated, and the PET extinction master batch prepared by the technical scheme has the advantages of stable processing performance and good extinction uniformity.
Specifically, before the raw materials are mixed in the step (1), the resin which is easy to absorb moisture in the raw materials needs to be subjected to vacuum drying treatment in advance, such as polyethylene terephthalate, polyethylene terephthalate copolymer, nylon and other resin which is easy to absorb moisture, the drying temperature is 120 ℃, the drying time is 5-20 hours, the moisture is ensured to be less than 1000ppm, and the molecular degradation caused by hydrolysis is prevented.
The technical scheme of the invention is further described below in conjunction with specific embodiments.
Example 1
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate (PET)), 49 parts of a second component resin (nylon 6) and 1 part of a special auxiliary agent (maleic anhydride-acrylate copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) 50 parts of PET, 49.0 parts of nylon 6 and 1 part of maleic anhydride-acrylic ester copolymer are respectively added into a stirrer, the stirring speed of the stirrer is 200r/min, the stirring time is 8min, a mixed material is obtained, and the mixed material is discharged for standby;
(2) Feeding the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, starting feeding at the same time, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw of the double-screw extruder is 45, the temperature of the double-screw extruder is 200 ℃, the die head temperature of the extruder is 250 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.65dL/g, the moisture content of 300ppm and the density of 1.36g/cm 3 。
Example 2
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate (PET)), 49 parts of a second component resin (aromatic nylon (MXD-6)) and 1 part of a special auxiliary agent (maleic anhydride-acrylate copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) 50 parts of PET, 49.0 parts of aromatic nylon MXD-6 and 1 part of maleic anhydride-acrylic ester copolymer are respectively added into a stirrer, the stirring speed of the stirrer is 200r/min, the stirring time is 8min, a mixed material is obtained, and the mixed material is discharged for standby;
(2) Feeding the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, starting feeding at the same time, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw of the double-screw extruder is 45, the temperature of the double-screw extruder is 250 ℃, the die head temperature of the extruder is 230 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 2.05dL/g, the moisture content of 280ppm and the density of 1.39g/cm 3 。
Example 3
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate (PET)), 49 parts of a second component resin (nylon 6-nylon 66 copolymer) and 1 part of a special auxiliary agent (maleic anhydride-acrylic ester copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) 50 parts of PET, 49.0 parts of nylon 6-nylon 66 copolymer and 1 part of maleic anhydride-acrylic ester copolymer are respectively added into a stirrer, the stirring speed of the stirrer is 200r/min, the stirring time is 8min, a mixed material is obtained, and the mixed material is discharged for standby;
(2) Feeding the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, starting feeding at the same time, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw of the double-screw extruder is 45, the temperature of the double-screw extruder is 250 ℃, the die head temperature of the extruder is 250 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.68dL/g, the moisture content of 290ppm and the density of 1.35g/cm 3 。
Example 4
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate PET), 45 parts of a second component resin (polypropylene homopolymer) and 5 parts of an increase Rong Chuji (maleic anhydride grafted polyolefin);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding 50 parts of PET, 45 parts of polypropylene homopolymer and 5 parts of maleic anhydride grafted polyolefin into a stirrer, wherein the stirring speed of the stirrer is 100r/min, the stirring time is 10min, obtaining a mixed material, and discharging for later use;
(2) Feeding the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, starting feeding at the same time, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw of the double-screw extruder is 45, the temperature of the double-screw extruder is 300 ℃, the die head temperature of the extruder is 300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 2.10dL/g, the moisture content of 200ppm and the density of 0.98g/cm 3 。
Example 5
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate (PET)), 45 parts of a second component resin (high density polyethylene) and 5 parts of an increase Rong Chuji (maleic anhydride grafted polyolefin);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding 50 parts of PET, 45 parts of high-density polyethylene and 5 parts of maleic anhydride grafted polyolefin into a stirrer, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 10min, so as to obtain a mixed material, and discharging the mixed material for later use;
(2) Feeding the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, starting feeding at the same time, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw of the double-screw extruder is 45, the temperature of the double-screw extruder is 200 ℃, the temperature of a die head of the extruder is 230 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 2.90dL/g, the moisture content of 200ppm and the density of 1.02g/cm 3 。
Example 6
The PET extinction master batch comprises the following raw materials in parts by weight: 65 parts of a first component resin (polyethylene terephthalate (PET)), 30 parts of a second component resin (general-purpose polystyrene) and 5 parts of an increase Rong Chuji (styrene-maleic anhydride copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding 65 parts of polyethylene terephthalate, 30 parts of general-purpose polystyrene and 5 parts of styrene-maleic anhydride copolymer into a stirrer, wherein the stirring speed of the stirrer is 300r/min, the stirring time is 5min, so as to obtain a mixed material, and discharging the mixed material for later use;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.45dL/g, the moisture content of 305ppm and the density of 1.18g/cm 3 。
Example 7
The PET extinction master batch comprises the following raw materials in parts by weight: 65 parts of a first component resin (polyethylene terephthalate (PET)), 30 parts of a second component resin (impact-resistant polystyrene) and 5 parts of an increase Rong Chuji (styrene-maleic anhydride copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding polyethylene terephthalate PET, impact-resistant polystyrene and styrene-maleic anhydride copolymer into a stirrer according to a formula, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, and the obtained mixture is discharged for standby;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.55dL/g, the moisture content of 310ppm and the density of 1.12g/cm 3 。
Example 8
The PET extinction master batch comprises the following raw materials in parts by weight: 59 parts of a first component resin (polyethylene terephthalate), 40 parts of a second component resin (polycarbonate) and 1 part of a special auxiliary agent (maleic anhydride-acrylate copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) According to the formula, respectively adding polyethylene terephthalate, polycarbonate and maleic anhydride-acrylic ester copolymer into a stirrer, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, and obtaining a mixed material, and discharging for later use;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 3.05dL/g, the moisture content of 320ppm and the density of 1.31g/cm 3 。
Example 9
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate copolymer), 49 parts of a second component resin (nylon 6) and 1 part of a special auxiliary agent (maleic anhydride-acrylate copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding the polyethylene terephthalate copolymer, nylon 6 and the maleic anhydride-acrylic ester copolymer into a stirrer according to a formula, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, so as to obtain a mixed material, and discharging the mixed material for later use;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.65dL/g, the moisture content of 300ppm and the density of 1.36g/cm 3 。
Example 10
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate copolymer), 49 parts of a second component resin (aromatic nylon) and 1 part of a special auxiliary agent (maleic anhydride-acrylic ester copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding the polyethylene terephthalate copolymer, the aromatic nylon and the maleic anhydride-acrylic ester copolymer into a stirrer according to a formula, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, so as to obtain a mixed material, and discharging the mixed material for later use;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 2.05dL/g, the moisture content of 280ppm and the density of 1.39g/cm 3 。
Example 11
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate copolymer), 49 parts of a second component resin (nylon 6-nylon 66 copolymer) and 1 part of a special auxiliary agent (maleic anhydride-acrylic ester copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding the polyethylene terephthalate copolymer, the nylon 6-nylon 66 copolymer and the maleic anhydride-acrylic ester copolymer into a stirrer according to a formula, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, and the obtained mixture is discharged for standby;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.68dL/g, the moisture content of 290ppm and the density of 1.35g/cm 3 。
Example 12
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate copolymer), 45 parts of a second component resin (polypropylene homopolymer) and 5 parts of an increase Rong Chuji (maleic anhydride grafted polyolefin);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding the polyethylene terephthalate copolymer, the polypropylene homopolymer and the maleic anhydride grafted polyolefin into a stirrer according to a formula, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, and the obtained mixture is discharged for standby;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 2.10dL/g, the moisture content of 200ppm and the density of 0.98g/cm 3 。
Example 13
The PET extinction master batch comprises the following raw materials in parts by weight: 50 parts of a first component resin (polyethylene terephthalate copolymer), 45 parts of a second component resin (high density polyethylene) and 5 parts of an increase Rong Chuji (maleic anhydride grafted polyolefin);
the preparation method of the PET extinction master batch comprises the following steps:
(1) According to the formula, respectively adding the polyethylene terephthalate copolymer, the high-density polyethylene and the maleic anhydride grafted polyolefin into a stirrer, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, so as to obtain a mixed material, and discharging the mixed material for later use;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 2.90dL/g, the moisture content of 200ppm and the density of 1.02g/cm 3 。
Example 14
The PET extinction master batch comprises the following raw materials in parts by weight: 65 parts of a first component resin (polyethylene terephthalate copolymer), 30 parts of a second component resin (general-purpose polystyrene) and 5 parts of an extender Rong Chuji (styrene-maleic anhydride copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) According to the formula, respectively adding the polyethylene terephthalate copolymer, the general-purpose polystyrene and the styrene-maleic anhydride copolymer into a stirrer, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, obtaining a mixed material, and discharging for later use;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.45dL/g, the moisture content of 305ppm and the density of 1.18g/cm 3 。
Example 15
The PET extinction master batch comprises the following raw materials in parts by weight: 65 parts of a first component resin (polyethylene terephthalate copolymer), 30 parts of a second component resin (impact-resistant polystyrene HIPS) and 5 parts of an increment Rong Chuji (styrene-maleic anhydride copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding the polyethylene terephthalate copolymer, the impact-resistant polystyrene HIPS and the styrene-maleic anhydride copolymer into a stirrer according to a formula, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, and the obtained mixed material is discharged for standby;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 1.55dL/g, the moisture content of 310ppm and the density of 1.12g/cm 3 。
Example 16
The PET extinction master batch comprises the following raw materials in parts by weight: 59 parts of a first component resin (polyethylene terephthalate copolymer), 40 parts of a second component resin (polycarbonate PC) and 1 part of a special auxiliary agent (maleic anhydride-acrylate copolymer);
the preparation method of the PET extinction master batch comprises the following steps:
(1) Respectively adding the polyethylene terephthalate copolymer, the polycarbonate PC and the maleic anhydride-acrylic ester copolymer into a stirrer according to a formula, wherein the stirring speed of the stirrer is 200r/min, the stirring time is 8min, so as to obtain a mixed material, and discharging the mixed material for later use;
(2) Putting the mixed materials into a hopper of a double-screw extruder, starting the double-screw extruder, and simultaneously starting feeding, wherein the diameter of a screw of the double-screw extruder is 60mm, the length-diameter ratio of the screw is 45, the temperature of the double-screw extruder is 200-300 ℃, the temperature of a die head of the extruder is 230-300 ℃, the feeding speed is 25r/min, and the rotating speed of the screw is 100r/min; extruding the materials into strips through a porous die head, immediately cooling with cooling water, wherein the length of the cooling water is 0.4m; and (5) granulating and drying the cooled material strips to obtain the PET extinction master batch.
The PET extinction master batch prepared in the embodiment has the intrinsic viscosity of 3.05dL/g, the moisture content of 320ppm and the density of 1.31g/cm 3 。
Specifically, the PET matting concentrates prepared in examples 1 to 16 were used as matting layer (i.e., surface layer) materials for BOPET matting films, respectively, to prepare BOPET matting films, wherein the total thickness of the BOPET matting films was 25 μm, and the thickness of the matting layer was 2.5. Mu.m, respectively, to prepare BOPET matting films. According to the test method in national standard GB/T16958-2008 bidirectional stretching polyester film for packaging, the gloss, haze, tensile strength, elastic modulus and thermal shrinkage rate of the surface of the extinction layer in BOPET extinction films prepared in examples 1-16 are respectively tested, and the test results are shown in the following table 1:
table 1 test results for examples 1-16
Figure BDA0004075111450000211
As can be seen from the test results of Table 1, the PET matting concentrates of examples 1 to 16 can be used to produce a matting layer having a gloss of 40 to 75%, the lower the gloss, the higher the gloss, the greater the level of matting, and the different consumer requirements for the product, and the PET matting concentrates of examples 6, 8, 14 or 16 can be selected for preparation if the consumer only requires a semi-matting or a slight matting effect, and the PET matting concentrates of examples 2, 7 or 10 can be selected for preparation if the consumer requires a BOPET matting film having a more pronounced matting effect.
Effect example 1
The PET extinction master batch in example 1 is used as an extinction layer (namely a surface layer) material to prepare a BOPET extinction film, a BOPET extinction film sample is prepared, the prepared BOPET extinction film sample is put into a Scanning Electron Microscope (SEM) for testing, the surface microscopic morphology of the BOPET extinction film sample is tested, the test result is shown in the following figure 1, and as can be seen from the figure 1, the surface texture of the BOPET extinction film prepared by adopting the PET extinction master batch in example 1 is consistent, uniform and fine, and a uniform extinction effect can be obtained.
Comparative example 1
The BOPET matting film of this comparative example was commercially available, and the matting effect was obtained mainly by adding a surface-treated matting powder to the raw material. The BOPET extinction film in this comparative example was put into a Scanning Electron Microscope (SEM) for testing, and the surface microscopic morphology of the BOPET extinction film in this comparative example was tested, and the test result is shown in fig. 2 below, and as can be seen from the SEM image of the BOPET extinction film surface in fig. 2, the BOPET extinction film in this comparative example has a rough surface texture, the surface of the film is island phase, a coherent extinction surface cannot be formed, extinction uniformity is insufficient, and a uniform extinction effect is difficult to obtain.
Comparative example 2
The BOPET matting film of this comparative example was commercially available, and the matting effect was obtained mainly by adding fine spherical silica powder to the raw material. The samples of this comparative example were placed in a Scanning Electron Microscope (SEM) for testing the surface microscopic morphology of this comparative example, and the test results are shown in fig. 3 below, and as can be seen from the BOPET matt film surface SEM pictures of fig. 3, the surface texture of the samples of this comparative example was sparse, the matt degree was shallow, and a coherent matt surface could not be formed.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (9)

1. The PET extinction master batch is characterized by comprising the following raw materials in parts by weight: 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent;
The first component resin is any one or the combination of two of polyethylene terephthalate and polyethylene terephthalate copolymer;
the second component resin is any one or a combination of more of nylon, polyolefin, styrene resin and polycarbonate.
2. The PET matting masterbatch of claim 1 characterised in that the first component resin has a melting temperature of 200 to 300 ℃ and an intrinsic viscosity of 0.65 to 5dL/g.
3. The PET matting masterbatch of claim 1 wherein the nylon is a combination of any one or more of aliphatic nylon, aromatic nylon and copolymers thereof; the relative viscosity of the nylon is 1-10.
4. A PET matting masterbatch as claimed in claim 3, characterised in that the polyolefin is any one or a combination of more of polypropylene, polyethylene, polybutylene and polypropylene homopolymer;
the polyolefin has a melt index of 1 to 20g/10min at 230 ℃ and 2.16 kg.
5. A PET matting masterbatch according to claim 3 characterised in that the styrenic resin is any one or a combination of a general purpose polystyrene, MBS resin, SAN resin and impact-resistant polystyrene.
6. A PET matting masterbatch as claimed in claim 1, characterised in that the auxiliary is a compatibilizer auxiliary and/or a special auxiliary;
the increase Rong Chuji is any one of maleic anhydride grafted polyolefin, styrene-maleic anhydride copolymer and polyethylene terephthalate;
the special auxiliary agent is maleic anhydride-acrylic ester copolymer.
7. A process for preparing a PET matting masterbatch as defined in any one of claims 1 to 6, comprising the steps of:
(1) Uniformly mixing 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent to obtain a mixed material;
(2) And (3) plasticizing and fusing the mixed materials, extruding the mixed materials to prepare material strips, and granulating the cooled material strips to obtain the PET extinction master batch.
8. The process for producing a PET matting masterbatch according to claim 7, characterised in that the operating method of step (1) is as follows: sequentially adding 50-90 parts of first component resin, 10-50 parts of second component resin and 0.1-6 parts of auxiliary agent into a stirrer, wherein the stirring speed of the stirrer is 100-300 r/min, the stirring time is 1-10 min, and fully and uniformly mixing to obtain a mixed material.
9. The method for preparing the PET extinction master batch according to claim 7, wherein the mixed material is put into a double-screw extruder, the mixed material is fully plasticized and fused under the high-temperature state and the high-speed shearing action of a screw, the strips are extruded through a porous die head, the strips are prepared after cooling water, and the cooled strips are subjected to granulating treatment in a granulator; wherein the temperature of the double-screw extruder is 200-300 ℃, the temperature of the porous die head is 230-300 ℃, and the rotating speed of the granulator is 100-300 r/min.
CN202310106627.4A 2023-02-13 2023-02-13 PET extinction master batch and preparation method thereof Pending CN116218162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310106627.4A CN116218162A (en) 2023-02-13 2023-02-13 PET extinction master batch and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310106627.4A CN116218162A (en) 2023-02-13 2023-02-13 PET extinction master batch and preparation method thereof

Publications (1)

Publication Number Publication Date
CN116218162A true CN116218162A (en) 2023-06-06

Family

ID=86580023

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310106627.4A Pending CN116218162A (en) 2023-02-13 2023-02-13 PET extinction master batch and preparation method thereof

Country Status (1)

Country Link
CN (1) CN116218162A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116656095A (en) * 2023-06-09 2023-08-29 广东一龙新材料科技有限公司 Pearlescent PET master batch and preparation method and application thereof
CN117866335A (en) * 2024-03-08 2024-04-12 汕头市贝斯特科技有限公司 High Wen Xiaoguang-resistant master batch and preparation method and application thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460742A (en) * 1979-11-26 1984-07-17 Mitsubishi Rayon Company, Limited Delustered thermoplastic resin composition
JPH05301276A (en) * 1992-04-28 1993-11-16 Kao Corp Matte polyester resin container and manufacture thereof
CN101259771A (en) * 2008-04-17 2008-09-10 富维薄膜（山东）有限公司 Single-face matt polyester film and preparation method thereof
CN102558784A (en) * 2010-12-28 2012-07-11 上海金发科技发展有限公司 Anti-impact polyethylene glycol terephthalate composite material and preparation method thereof
CN102558896A (en) * 2010-10-29 2012-07-11 罗姆及哈斯公司 Thermoplastic composition, method of producing the same, and articles made therefrom
CN103951954A (en) * 2014-05-12 2014-07-30 东莞市信诺橡塑工业有限公司 PC (Polycarbonate)/PET (Polyethylene Terephthalate) composition and preparation method thereof
CN114044982A (en) * 2021-12-25 2022-02-15 昆山禾振瑞新复合材料有限公司 High-performance polypropylene extinction master batch and extinction film

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460742A (en) * 1979-11-26 1984-07-17 Mitsubishi Rayon Company, Limited Delustered thermoplastic resin composition
JPH05301276A (en) * 1992-04-28 1993-11-16 Kao Corp Matte polyester resin container and manufacture thereof
CN101259771A (en) * 2008-04-17 2008-09-10 富维薄膜（山东）有限公司 Single-face matt polyester film and preparation method thereof
CN102558896A (en) * 2010-10-29 2012-07-11 罗姆及哈斯公司 Thermoplastic composition, method of producing the same, and articles made therefrom
CN102558784A (en) * 2010-12-28 2012-07-11 上海金发科技发展有限公司 Anti-impact polyethylene glycol terephthalate composite material and preparation method thereof
CN103951954A (en) * 2014-05-12 2014-07-30 东莞市信诺橡塑工业有限公司 PC (Polycarbonate)/PET (Polyethylene Terephthalate) composition and preparation method thereof
CN114044982A (en) * 2021-12-25 2022-02-15 昆山禾振瑞新复合材料有限公司 High-performance polypropylene extinction master batch and extinction film

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ZHONG-MING LI 等: "Morphology-tensile behavior relationship in injection molded poly(ethylene terephthalate)/polyethylene and polycarbonate/polyethylene blends (l)", 《JOURNAL OF MATERIALS SCIENCE》, vol. 39, no. 2, 15 January 2004 (2004-01-15), pages 413 - 31 *
陈晓勇;向明;: "一种新型聚烯烃消光膜的开发研究", 塑料工业, no. 10, 20 October 2008 (2008-10-20) *
陈晓勇;向明;: "聚合物消光膜", 塑料制造, no. 11, 5 November 2008 (2008-11-05) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116656095A (en) * 2023-06-09 2023-08-29 广东一龙新材料科技有限公司 Pearlescent PET master batch and preparation method and application thereof
CN116656095B (en) * 2023-06-09 2024-01-09 广东一龙新材料科技有限公司 Pearlescent PET master batch and preparation method and application thereof
CN117866335A (en) * 2024-03-08 2024-04-12 汕头市贝斯特科技有限公司 High Wen Xiaoguang-resistant master batch and preparation method and application thereof
CN117866335B (en) * 2024-03-08 2024-08-27 汕头市贝斯特科技有限公司 High-resistant Wen Xiaoguang master batch and preparation method and application thereof

Similar Documents

Publication Publication Date Title
WO2022252266A1 (en) Composite toughened and high-temperature-resistant polylactic acid modified material and preparation method therefor
CN116218162A (en) PET extinction master batch and preparation method thereof
EP1609811B1 (en) High density polyethylene film with improved barrier
CN105602215B (en) A kind of heat-resisting sheet material of biodegrade and preparation method thereof
DE60017939T2 (en) THERMOPLASTIC COMPOSITIONS OF HIGH DIMENSIONAL STABILITY
US4118438A (en) Transparent non-blocking polypropylene film and its preparation
CN111978644B (en) Polypropylene breathable film and preparation method thereof
JP2022516967A (en) Methods and equipment for directly producing polylactic acid foam products from polylactic acid polymerization melts
CN112029173B (en) Polyethylene breathable film and preparation method thereof
CN114702789B (en) High-light-transmittance polyester film and manufacturing method thereof
CN115011083A (en) Fully biodegradable composite material capable of being repeatedly processed and preparation method thereof
CN110684279A (en) Pearlescent master batch for biaxially oriented film and preparation method and application thereof
CN102492177A (en) Biological-based sheet for food contact and preparation method thereof
CN109575557A (en) PC/ABS mixture for 3 D-printing and preparation method thereof and method of direct printing
CN114989581B (en) Biodegradable polylactic acid foaming particle and preparation method thereof
CN109608837A (en) A kind of polyester-polyolefin film and preparation method thereof
CN1951994A (en) Transparent film masterbatch and its preparing method
WO2020088215A1 (en) Pha-modified ppc/pbat biodegradable resin and preparation method therefor
CN112694670B (en) Glass fiber reinforced waste PP/PET film composite material and preparation method thereof
CN109575502A (en) PC/ABS compound silk material for 3 D-printing and preparation method thereof and Method of printing
CN105492543A (en) Biodegradable impact-modified polymer compositions
CN116061533A (en) PET matte film with mountain chain-shaped surface and preparation method thereof
CN114015185A (en) Biodegradable heat shrinkable film and processing technology thereof
CN114045010A (en) Biodegradable polyester film and preparation method thereof
JPS6046137B2 (en) thermoplastic resin composition

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination