CN101747600A - Method for preparing polyethylene terephthalate (PET) blend - Google Patents
Method for preparing polyethylene terephthalate (PET) blend Download PDFInfo
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- CN101747600A CN101747600A CN200910213842A CN200910213842A CN101747600A CN 101747600 A CN101747600 A CN 101747600A CN 200910213842 A CN200910213842 A CN 200910213842A CN 200910213842 A CN200910213842 A CN 200910213842A CN 101747600 A CN101747600 A CN 101747600A
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- glycidyl methacrylate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a method for preparing polyethylene terephthalate (PET) blend. Glycidyl methacrylate (GMA) is used as grafting monomer, comonomer, initiator and inhibiting crosslinker are added to the grafting monomer, polyolefin elastomer (POE) is molten and grafted on a twin-screw extruder to prepare POE-g-(GMA-co-St) which has high grafting ratio and good fluidity, and the POE-g-(GMA-co-St) and the PET are molten and blended to effectively improve the impact resistance of the PET. The method for preparing the PET blend has low requirement for the production equipment, has high efficiency and is convenient for the production of the PET blend on a large scale, and the high-impact resistant PET blend has good impact resistance and a certain degree of rigidity.
Description
Technical field
The present invention relates to a kind of preparation method of polyethylene terephthalate blend, particularly a kind of method that adopts polycomponent fusion-grafting technology to prepare high impact poly ethylene glycol terephthalate blend.
Background technology
PET (polyethylene terephthalate) is a kind of very important thermoplastic engineering plastic, has excellent mechanical property, electrical property, resistance toheat, resistance to chemical corrosion etc., is widely used in industries such as automobile, electric and food.But the PET crystallization rate of non-modified is slow, and molding processability is poor, and shock strength is low, has therefore limited its further application.
In order to improve the shock resistance of PET, PET/ functionalized elastomeric body co-mixing system has been carried out a large amount of research both at home and abroad.Plastics industry 200836 (12): 17-20, Chinese plastics 200418 (3): 20-22, Chinese patent CN1238356A, JOURNALOF POLYMER RESEARCH 2,005 12 (5): 355-359 have reported with maleic anhydride grafted ethene-1-octene copolymer (POE-g-MAH) and have improved the shock resistance of PET.These functionalized elastomeric addings can make the shock resistance of PET increase, but the rigidity of PET is descended.This is because during single-component MAH fusion-grafting POE, and is easily crosslinked in the grafting process, and the grafts performance reduces, and monomer causes the grafting activity low because of structural reason simultaneously, and percentage of grafting is not high, and therefore, the toughening effect of POE-g-MAH is unsatisfactory.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, a kind of preparation method of polyethylene terephthalate blend is provided, by adopting the glycidyl methacrylate graft polyolefin elastomer, prepare the high impact poly ethylene glycol terephthalate, when having improved the PET erosion-resisting characteristics, other performances that as far as possible keep PET obtain a kind of high-impact PET blend of high comprehensive performance.
The present invention is directed to the defective that present PET impact modifier POE crosslinking technology exists: percentage of grafting is not high; Macromole is easily crosslinked in the grafting process, the grafts poor-performing.The glycidyl methacrylate higher with activity, that volatility is little (GMA) is as grafted monomer, and vinylbenzene (St) is total to monomer as grafting, improves the percentage of grafting of system greatly; Add triphenyl phosphite (TPP) simultaneously as pressing down linking agent, effectively suppressed macromolecular crosslinked, it is not high to have solved the POE percentage of grafting, and easily crosslinked problem has prepared the glycidyl methacrylate graft polyolefin elastomer POE-g-(GMA-co-St) of percentage of grafting height, good fluidity.The POE-g-(GMA-co-St) that makes and PET extruded by the forcing machine blend make high-impact PET blend.
The object of the invention is achieved through the following technical solutions:
A kind of preparation method of polyethylene terephthalate blend comprises the steps:
(1) with polyolefin elastomer, initiator, glycidyl methacrylate, monomer and press down linking agent and mix altogether, drops in the forcing machine, carry out melting graft reaction, make the glycidyl methacrylate graft polyolefin elastomer at 100～200 ℃;
The parts by weight of each component are as follows:
Polyolefin elastomer 100
Glycidyl methacrylate 0.05～8
Be total to monomer 0.05～8
Initiator 0.02～0.5
Press down linking agent 0.02～2;
(2) the above-mentioned glycidyl methacrylate graft polyolefin elastomer that obtains and polyethylene terephthalate are mixed after, mixture is obtained the polyethylene terephthalate blend after 230～280 ℃ of extruding pelletizations, drying;
Described glycidyl methacrylate graft polyolefin elastomer accounts for 5～20% weight of mixture, and polyethylene terephthalate accounts for 80～95% weight of mixture.
Described polyolefin elastomer comprises ethene-1-octene copolymer, ethene-butene-1 copolymer, ethene-1-hexene copolymer.
The described reaction process of step (1) is: 100～200 ℃ are carried out melting graft reaction in twin screw extruder, and screw diameter is 35～45mm, and length-to-diameter ratio L/D is 30～50, and rotating speed is 40～60r/min.
Described monomer altogether is vinylbenzene, alpha-methyl styrene or methyl acrylate.
Described initiator is the peroxide type initiator.
Described peroxide type initiator comprises dicumyl peroxide, benzoyl peroxide or ditertiary butyl peroxide.
But described linking agent is triphenyl phosphite or dimethyl formamide.
Described extruding pelletization is to carry out at twin screw extruder, and screw slenderness ratio L/D is 30～50, rotating speed 100-200r/min.
Described glycidyl methacrylate graft polyolefin elastomer is glycidyl methacrylate graft ethene-1-octene copolymer, glycidyl methacrylate graft ethene-butene-1 copolymer or glycidyl methacrylate graft ethene-1-hexene copolymer, wherein the percentage of grafting of glycidyl methacrylate is 0.3%～1.3%.
The described technology of step (2) is: with mixture 230～280 ℃ of extruding pelletizations in twin screw extruder, screw diameter is 35～45mm, and length-to-diameter ratio L/D is 30～50, rotating speed 100-200r/min.
The present invention compared with prior art has following advantage:
(1) the used glycidyl methacrylate graft polyolefin elastomer employing glycidyl methacrylate of the present invention is a grafted monomer, compares with traditional grafted monomer maleic anhydride, and activity is higher, and toxicity is little, and is non-volatile.Cografting monomer and the use that presses down linking agent effectively reduce the generation of glycidyl methacrylate autohemagglutination and the crosslinked phenomenon of ethylene-octene copolymer, the glycidyl methacrylate graft ethylene-octene copolymer percentage of grafting height that the present invention is prepared, good flowing properties.
(2) by the prepared high impact poly ethylene glycol terephthalate of glycidyl methacrylate graft polyolefin elastomer, when having good impact property, also kept certain rigid.When glycidyl methacrylate graft polyolefin elastomer consumption was 15%, the shock strength of the anti-impact polyethylene terephthalate of gained was more than 5 times of pure PET, and tensile strength and flexural strength only have the decline of a little.
(3) the used preparation method of the present invention is low to the production unit requirement, and the efficient height is convenient to scale operation.
Embodiment
Embodiment 1
With 100 parts of ethene-1-octene copolymer (Mitsui TAFERM, DF610), 3 parts of glycidyl methacrylate, 3 parts of vinylbenzene, 0.15 part of dicumyl peroxide, 1 part of triphenyl phosphite thorough mixing are even, extrude through twin screw extruder, tie rod, cooling, pelletizing make graft product.Processing parameter is: twin screw extruder, and diameter 36mm, length-to-diameter ratio L/D are 40, rotating speed: 55r/min; Each section of forcing machine temperature is respectively: the I section: 100 ℃; II section: 175 ℃; The III section: 180 ℃, IV section: 180 ℃; V section: 180 ℃; VI section: 180 ℃; VII section: 175 ℃.Gained glycidyl methacrylate graft polyolefin elastomer percentage of grafting is 0.93%, and melting index is 0.84g/10min.
To obtain glycidyl methacrylate graft polyolefin elastic and PET by table 1 prescription (massfraction) proportioning after, melt extrude through twin screw extruder, processing parameter is: twin screw extruder, diameter 40mm, length-to-diameter ratio L/D are 38, rotating speed 150r/min.Each section of forcing machine temperature is respectively: the I section: 235 ℃; II section: 245 ℃; The III section: 250 ℃, IV section: 250 ℃; V section: 245 ℃; VI section: 245 ℃; The VII section: 230 ℃, cooling, pelletizing obtains polyethylene terephthalate blend of the present invention after the drying, be injection molded into the standard batten on injection moulding machine, and injection temperature is 230～250 ℃.Its physical performance index sees Table 1.
Embodiment 2
With 100 parts of ethene-1-octene copolymer (Mitsui TAFERM, DF610), 5 parts of glycidyl methacrylate, 3 parts of vinylbenzene, 0.15 part of dicumyl peroxide, 1 part of triphenyl phosphite thorough mixing are even, extrude through twin screw extruder, tie rod, cooling, pelletizing make graft product.Processing parameter is: twin screw extruder, and diameter 36mm, length-to-diameter ratio L/D are 40, rotating speed: 55r/min; Each section of forcing machine temperature is respectively: the I section: 100 ℃; II section: 175 ℃; The III section: 180 ℃, IV section: 180 ℃; V section: 180 ℃; VI section: 180 ℃; VII section: 175 ℃.Gained glycidyl methacrylate graft polyolefin elastomer percentage of grafting is 1.25%, and melting index is 0.65g/10min.
To obtain glycidyl methacrylate graft polyolefin elastic and PET by table 1 prescription (massfraction) proportioning after, melt extrude through twin screw extruder, processing parameter is: twin screw extruder, diameter 40mm, length-to-diameter ratio L/D are 38,150r/min.Each section of forcing machine temperature is respectively: the I section: 235 ℃; II section: 245 ℃; The III section: 250 ℃, IV section: 250 ℃; V section: 245 ℃; VI section: 245 ℃; The VII section: 230 ℃, cooling, pelletizing obtains polyethylene terephthalate blend of the present invention after the drying.Be injection molded into the standard batten on injection moulding machine, injection temperature is 230～250 ℃.Its physical performance index sees Table 1.
Embodiment 3
With 100 parts of ethene-1-octene copolymer (Mitsui TAFERM, DF610), 5 parts of glycidyl methacrylate, 5 parts of vinylbenzene, 0.15 part of dicumyl peroxide, 1 part of triphenyl phosphite thorough mixing are even, extrude through twin screw extruder, tie rod, cooling, pelletizing make graft product.Processing parameter is: twin screw extruder, and diameter 36mm, length-to-diameter ratio L/D are 40, rotating speed: 55r/min; Each section of forcing machine temperature is respectively: the I section: 100 ℃; II section: 175 ℃; The III section: 180 ℃, IV section: 180 ℃; V section: 180 ℃; VI section: 180 ℃; VII section: 175 ℃.Gained glycidyl methacrylate graft polyolefin elastomer percentage of grafting is 1.20%, and melting index is 0.70g/10min.
To obtain glycidyl methacrylate graft polyolefin elastic and PET by table 1 prescription (massfraction) proportioning after, melt extrude through twin screw extruder, processing parameter is: twin screw extruder, diameter 40mm, length-to-diameter ratio L/D are 38,150r/min.Each section of forcing machine temperature is respectively: the I section: 235 ℃; II section: 245 ℃; The III section: 250 ℃, IV section: 250 ℃; V section: 245 ℃; VI section: 245 ℃; The VII section: 230 ℃, cooling, pelletizing obtains polyethylene terephthalate blend of the present invention after the drying.Be injection molded into the standard batten on injection moulding machine, injection temperature is 230～250 ℃.Its physical performance index sees Table 1.
Embodiment 4
100 parts of ethene-butene-1 copolymers (Exxon Mobil PX9071), 0.05 part of glycidyl methacrylate, 3 parts of alpha-methyl styrenes, 0.02 part of dicumyl peroxide, 0.02 part of triphenyl phosphite thorough mixing are even, extrude through twin screw extruder, tie rod, cooling, pelletizing make graft product.Processing parameter is: twin screw extruder, and diameter 36mm, length-to-diameter ratio L/D are 40, rotating speed: 60r/min; Each section of forcing machine temperature is respectively: the I section: 100 ℃; II section: 170 ℃; The III section: 180 ℃, IV section: 180 ℃; V section: 180 ℃; VI section: 180 ℃; VII section: 175 ℃.Gained glycidyl methacrylate graft polyolefin elastomer percentage of grafting is 0.3%, and melting index is 2.0g/10min.
To obtain glycidyl methacrylate graft polyolefin elastic and PET by table 1 prescription (massfraction) proportioning after, melt extrude through twin screw extruder, processing parameter is: twin screw extruder, diameter 40mm, length-to-diameter ratio L/D are 38,150r/min.Each section of forcing machine temperature is respectively: the I section: 235 ℃; II section: 245 ℃; The III section: 250 ℃, IV section: 250 ℃; V section: 245 ℃; VI section: 245 ℃; The VII section: 230 ℃, cooling, pelletizing obtains polyethylene terephthalate blend of the present invention after the drying.Be injection molded into the standard batten on injection moulding machine, injection temperature is 230～250 ℃.Its physical performance index sees Table 1.
Embodiment 5
With 100 parts of ethene-1-hexene copolymer (Exxon Mobil 8230), 8 parts of glycidyl methacrylate, 8 parts of methyl acrylates, 0.5 part cross benzoyl peroxide, 2 parts of dimethyl formamide thorough mixing are even, extrude through twin screw extruder, tie rod, cooling, pelletizing make graft product.Processing parameter is: twin screw extruder, and diameter 36mm, length-to-diameter ratio L/D are 40, rotating speed: 50r/min; Each section of forcing machine temperature is respectively: the I section: 100 ℃; II section: 170 ℃; The III section: 180 ℃, IV section: 180 ℃; V section: 180 ℃; VI section: 180 ℃; VII section: 175 ℃.Gained glycidyl methacrylate graft polyolefin elastomer percentage of grafting is 2.0%, and melting index is 0.30g/10min.
To obtain glycidyl methacrylate graft polyolefin elastic and PET by table 1 prescription (massfraction) proportioning after, melt extrude through twin screw extruder, processing parameter is: twin screw extruder, diameter 40mm, length-to-diameter ratio L/D are 38,150r/min.Each section of forcing machine temperature is respectively: the I section: 235 ℃; II section: 245 ℃; The III section: 250 ℃, IV section: 250 ℃; V section: 245 ℃; VI section: 245 ℃; The VII section: 230 ℃, cooling, pelletizing obtains polyethylene terephthalate blend of the present invention after the drying.Be injection molded into the standard batten on injection moulding machine, injection temperature is 230～250 ℃.Its physical performance index sees Table 1.
Table 1
By the mechanical property of showing the 1PET blend as can be seen, the add-on of glycidyl methacrylate graft polyolefin elastomer is very big to the shock strength influence of PET and glycidyl methacrylate graft polyolefin elastomer blending system.Along with the increase of glycidyl methacrylate graft polyolefin elastomer consumption, the shock strength of co-mixing system improves a lot, and tensile strength and flexural strength fall are less.When glycidyl methacrylate graft polyolefin elastomer consumption is 15%, the shock strength of co-mixing system is more than 5 times of pure PET, the glycidyl methacrylate graft polyolefin elastomer has played the effect of good impact modification, has made the anti-impact ethylene glycol terephthalate with excellent impact property.
Claims (9)
1. the preparation method of a polyethylene terephthalate blend is characterized in that comprising the steps:
(1) with polyolefin elastomer, initiator, glycidyl methacrylate, monomer and press down linking agent and mix altogether, drops in the forcing machine, react, make the glycidyl methacrylate graft polyolefin elastomer at 100～200 ℃;
The parts by weight of each component are as follows:
Polyolefin elastomer 100
Glycidyl methacrylate 0.05～8
Be total to monomer 0.05～8
Initiator 0.02～0.5
Press down linking agent 0.02～2;
(2) glycidyl methacrylate graft polyolefin elastomer and the polyethylene terephthalate that obtains mixed, the mixture that obtains obtains the polyethylene terephthalate blend by forcing machine after 230～280 ℃ of following extruding pelletizations, drying;
Described glycidyl methacrylate graft polyolefin elastomer accounts for 5～20% weight of mixture, and polyethylene terephthalate accounts for 80～95% weight of mixture.
2. preparation method according to claim 1 is characterized in that described polyolefin elastomer comprises ethene-1-octene copolymer, ethene-butene-1 copolymer or ethene-1-hexene copolymer.
3. preparation method according to claim 1 is characterized in that the screw diameter of the described forcing machine of step (1) is 35～45mm, and length-to-diameter ratio L/D is 30～50, and rotating speed is 40～60r/min.
4. preparation method according to claim 1 is characterized in that described monomer altogether is vinylbenzene, alpha-methyl styrene or methyl acrylate.
5. preparation method according to claim 1 is characterized in that described initiator is the peroxide type initiator.
6. preparation method according to claim 5 is characterized in that described peroxide type initiator comprises dicumyl peroxide, benzoyl peroxide or ditertiary butyl peroxide.
7. preparation method according to claim 1 is characterized in that described but linking agent is triphenyl phosphite or dimethyl formamide.
8. preparation method according to claim 1 is characterized in that described extruding pelletization is to carry out at twin screw extruder, and screw diameter is 35～45mm, and length-to-diameter ratio L/D is 30～50, rotating speed 100～200r/min.
9. preparation method according to claim 1, the percentage of grafting that it is characterized in that glycidyl methacrylate in the described glycidyl methacrylate graft polyolefin elastomer is 0.3%～1.3%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102138424A CN101747600B (en) | 2009-12-15 | 2009-12-15 | Method for preparing polyethylene terephthalate (PET) blend |
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| CN2009102138424A CN101747600B (en) | 2009-12-15 | 2009-12-15 | Method for preparing polyethylene terephthalate (PET) blend |
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| CN101747600B CN101747600B (en) | 2013-06-19 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010483A (en) * | 2010-09-29 | 2011-04-13 | 深圳市科聚新材料有限公司 | POE (Polyethylene Octene Elastomer) graft copolymer and preparation method thereof |
| CN102746469A (en) * | 2012-07-31 | 2012-10-24 | 福建师范大学 | Preparation method of butyl acrylate grafted ethylene-octylene block polymer particle |
| CN102796343A (en) * | 2012-07-24 | 2012-11-28 | 金发科技股份有限公司 | High tearing strength halogen-free flame retardant elastomer composition and preparation method and application thereof |
| CN107880471A (en) * | 2017-11-30 | 2018-04-06 | 武汉理工大学 | A kind of high tensile property SEBS is material modified and preparation method thereof |
| CN108384208A (en) * | 2018-03-16 | 2018-08-10 | 长春工业大学 | A kind of PET base wood-plastic composite materials and preparation method thereof |
| CN108659172A (en) * | 2018-04-17 | 2018-10-16 | 佳易容相容剂江苏有限公司 | For high-performance polyester and its toughener and preparation method thereof of alloy |
| CN109467645A (en) * | 2018-11-21 | 2019-03-15 | 长春工业大学 | A kind of preparation of the Rigid Organic Fillers of activeness and quietness PP |
| CN109608837A (en) * | 2018-12-20 | 2019-04-12 | 四川东方绝缘材料股份有限公司 | A kind of polyester-polyolefin film and preparation method thereof |
| CN112552455A (en) * | 2020-12-08 | 2021-03-26 | 珠海长先新材料科技股份有限公司 | Preparation method of special PPS (polyphenylene sulfide) toughening agent |
| CN113549292A (en) * | 2021-06-09 | 2021-10-26 | 川羊智慧科技有限公司 | Method for producing PET plastic steel belt by utilizing recycled materials |
| CN114502637A (en) * | 2019-10-18 | 2022-05-13 | 陶氏环球技术有限责任公司 | Impact modification of polyolefin acrylic polymers to styrene polymers |
| CN116180267A (en) * | 2023-02-14 | 2023-05-30 | 福建道化海洋工程有限公司 | Preparation method of antibacterial elastic fiber material |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010483A (en) * | 2010-09-29 | 2011-04-13 | 深圳市科聚新材料有限公司 | POE (Polyethylene Octene Elastomer) graft copolymer and preparation method thereof |
| CN102796343A (en) * | 2012-07-24 | 2012-11-28 | 金发科技股份有限公司 | High tearing strength halogen-free flame retardant elastomer composition and preparation method and application thereof |
| CN102746469A (en) * | 2012-07-31 | 2012-10-24 | 福建师范大学 | Preparation method of butyl acrylate grafted ethylene-octylene block polymer particle |
| CN107880471A (en) * | 2017-11-30 | 2018-04-06 | 武汉理工大学 | A kind of high tensile property SEBS is material modified and preparation method thereof |
| CN108384208A (en) * | 2018-03-16 | 2018-08-10 | 长春工业大学 | A kind of PET base wood-plastic composite materials and preparation method thereof |
| WO2019200839A1 (en) * | 2018-04-17 | 2019-10-24 | 佳易容相容剂江苏有限公司 | Toughening agent for high-performance polyester and alloy thereof, and preparation method therefor |
| CN108659172A (en) * | 2018-04-17 | 2018-10-16 | 佳易容相容剂江苏有限公司 | For high-performance polyester and its toughener and preparation method thereof of alloy |
| CN109467645A (en) * | 2018-11-21 | 2019-03-15 | 长春工业大学 | A kind of preparation of the Rigid Organic Fillers of activeness and quietness PP |
| CN109608837A (en) * | 2018-12-20 | 2019-04-12 | 四川东方绝缘材料股份有限公司 | A kind of polyester-polyolefin film and preparation method thereof |
| CN114502637A (en) * | 2019-10-18 | 2022-05-13 | 陶氏环球技术有限责任公司 | Impact modification of polyolefin acrylic polymers to styrene polymers |
| CN112552455A (en) * | 2020-12-08 | 2021-03-26 | 珠海长先新材料科技股份有限公司 | Preparation method of special PPS (polyphenylene sulfide) toughening agent |
| CN113549292A (en) * | 2021-06-09 | 2021-10-26 | 川羊智慧科技有限公司 | Method for producing PET plastic steel belt by utilizing recycled materials |
| CN116180267A (en) * | 2023-02-14 | 2023-05-30 | 福建道化海洋工程有限公司 | Preparation method of antibacterial elastic fiber material |
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|---|---|
| CN101747600B (en) | 2013-06-19 |
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