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CN111718669A - Environment-friendly roof heat-insulating waterproof coiled material and preparation method thereof - Google Patents

Environment-friendly roof heat-insulating waterproof coiled material and preparation method thereof Download PDF

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Publication number
CN111718669A
CN111718669A CN202010633354.5A CN202010633354A CN111718669A CN 111718669 A CN111718669 A CN 111718669A CN 202010633354 A CN202010633354 A CN 202010633354A CN 111718669 A CN111718669 A CN 111718669A
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China
Prior art keywords
parts
foaming
layer
coiled material
preparation
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Pending
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CN202010633354.5A
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Chinese (zh)
Inventor
隋子涛
隋福胜
郝振锋
随超凡
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Fuhua Waterproofing Technology Co ltd
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Fuhua Waterproofing Technology Co ltd
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Priority to CN202010633354.5A priority Critical patent/CN111718669A/en
Publication of CN111718669A publication Critical patent/CN111718669A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
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    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
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    • C09J11/06—Non-macromolecular additives organic
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    • C09J11/08—Macromolecular additives
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    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C09J123/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
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    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/55—Epoxy resins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
    • C—CHEMISTRY; METALLURGY
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    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—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
    • C08J2323/04—Homopolymers or copolymers of ethene
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    • 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
    • C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
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    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract

The invention provides an environment-friendly roof heat-insulating waterproof coiled material and a preparation method thereof, wherein the waterproof coiled material comprises a substrate layer, a foaming resin layer, an aluminum-plastic film layer, a butyl rubber bonding layer and a release film layer; the raw material of the substrate layer is warp-knitted para-aramid fiber fabric, and in the preparation process, the mechanical property is excellent by performing gum dipping and stretching treatment on the warp-knitted para-aramid fiber fabric; in addition, the preparation process of the foaming resin is improved, the obtained polyethylene foaming sheet has the apparent density of 35-40kg/cm3 and the thickness of 5-10mm, and the prepared roof heat-insulating waterproof coiled material is combined with the formula improvement of a butyl rubber bonding layer, has the advantages of heat insulation, good aging resistance and excellent water and seepage resistance, and is suitable for outdoor roofs.

Description

Environment-friendly roof heat-insulating waterproof coiled material and preparation method thereof
Technical Field
The invention belongs to the technical field of waterproof rolls, and particularly relates to an environment-friendly roof heat-insulating waterproof roll and a preparation method thereof.
Background
Waterproof coiled material, roll waterproof material made of asphalt, rubber or other organic materials, is commonly called asphalt felt or asphalt felt. The waterproof material product is prepared by impregnating asphalt or polymer waterproof materials on a matrix, and is provided in a roll form, namely the waterproof roll. According to different main composition materials, the waterproof coiled material is divided into an asphalt waterproof coiled material, a high polymer modified asphalt waterproof coiled material and a synthetic polymer waterproof coiled material. The waterproof roll is required to have good water resistance, stability to temperature change (no flow, no bubble, no disturbance and no brittle fracture at high temperature), certain mechanical strength, extensibility and fracture resistance, certain flexibility and aging resistance and the like.
The invention patent CN110397222A discloses a composite roof waterproof roll and a preparation method thereof, the composite roof waterproof roll comprises a macromolecule substrate layer, a heat-resistant butyl adhesive layer and a high-viscosity butyl adhesive layer which are sequentially laminated, and butyl rubber, a rubber plasticizer, an SEBS thermoplastic elastomer, inorganic filler, a tackifier, an anti-ultraviolet pigment and an antioxidant are properly mixed in the heat-resistant butyl adhesive layer and the high-viscosity butyl adhesive layer, so that the cohesive force of the butyl rubber is improved, and the butyl rubber can be well bonded with a primer of a building material. However, a large amount of plasticizers are added into the components, and the small molecular plasticizers are easy to migrate and volatilize on one hand, release toxic substances and cause environmental pollution; on the other hand, the strength effect of the butyl rubber layer is influenced, and the aging resistance and the weather resistance of the coiled material are reduced.
Disclosure of Invention
In order to solve the problems in the prior art and further optimize the prior art, the invention provides an environment-friendly roof heat-insulating waterproof coiled material and a preparation method thereof, so as to realize the following purposes:
1. the migration of small-molecule plasticizers is reduced, and the release amount of organic substances is reduced;
2. the heat preservation and insulation effect is good;
3. the aging resistance of the coiled material is improved;
in order to solve the technical problems, the invention adopts the following technical scheme:
an environment-friendly roof heat-insulating waterproof coiled material is characterized by comprising a base material layer, a foaming resin layer, an aluminum-plastic film layer, a butyl rubber bonding layer and a release film layer;
the base material layer is made of warp-knitted para-aramid fiber fabric;
the preparation method of the substrate layer comprises the steps of carrying out gum dipping treatment on the warp-knitted para-aramid fiber fabric;
the gum dipping solution comprises the following components in percentage by weight: 86-90% of water, 0.2-0.5% of ammonia water solution, 0.8-1% of wetting agent OT solution, 3-4% of EX-313 epoxy resin and 5-6% of butyl pyridine latex;
the dipping treatment has the dipping speed of 25-30 m/min and the liquid carrying rate of 50-70 percent;
the impregnation treatment comprises the steps that the temperature of an oven in a front drying area is 160-165 ℃, the temperature of a stretching area is 210-220 ℃, the temperature of a rear drying area is 220-230 ℃, and the temperature of a recovery area is 160-180 ℃;
the foamed resin layer is a polyethylene foamed sheet, the apparent density is 35-40kg/cm3, and the thickness is 5-10 mm;
the foaming resin layer comprises the following raw materials in parts by weight:
60-70 parts of linear low-density polyethylene, 10-15 parts of ethylene propylene diene monomer, 5-8 parts of attapulgite, 1-3 parts of surfactant lecithin, 1-5 parts of diatomite, 0.5-2 parts of silicone oil, 2-4 parts of a cross-linking agent, 3-5 parts of stabilizer dioctyltin oxide, 6-12 parts of a foaming agent and 6-12 parts of a foaming auxiliary agent;
the cross-linking agent is di-tert-butyl peroxide (DTBP);
the foaming agent is a mixture of azodicarbonamide AC and sodium bicarbonate, and the mass ratio of the azodicarbonamide AC to the sodium bicarbonate is 1: 1;
the foaming auxiliary agent is zinc oxide;
the preparation method of the foaming resin layer comprises two foaming molding steps:
the one-step foaming molding is carried out, the temperature of the kettle is 100 ℃, the pressure in the kettle is 4.5-5MPa, and the foaming reaction lasts for 9-10 h; performing secondary foaming molding at the temperature of 190 ℃ and the pressure of 0.15MPa for 20-30 min;
the butyl rubber bonding layer comprises the following raw materials in parts by weight;
25-30 parts of butyl rubber, 5-6 parts of epoxy modified acrylic resin, 18-20 parts of terpene resin, 0.5-1 part of glass microsphere, 5-6 parts of diatomite, 3-5 parts of hindered phenol compound antioxidant B900, 0.6-1 part of vinyl tri (beta-methoxyethoxy) silane, 1-1.5 parts of beta (3, 5-di-tert-butyl-4 hydroxyphenyl) propionic pentaerythritol and 4-5 parts of epoxy soybean oil.
By adopting the technical scheme, the invention has the beneficial effects that:
1. the roofing heat-insulating waterproof roll prepared by the method does not use a small-molecular plasticizer, avoids the migration of the plasticizer, reduces the release amount of organic substances, and has the VOC release amount of 10-30ppm within 24 hours after the roll is laid;
2. the roof heat-insulating waterproof coiled material prepared by the method has good heat-insulating effect, the thickness of the waterproof coiled material is 4-8mm, and the heat conductivity coefficient is 0.025-0.033W/m.k;
3. the roof heat-insulating waterproof roll prepared by the method has excellent aging resistance, and the maximum tensile force retention rate of the roll is 96-98% and the elongation retention rate is 94-97% by adopting an aging acceleration test and accelerating aging at 115 ℃ for 672 h.
4. The roof heat-insulating waterproof coiled material prepared by the method has excellent mechanical property, particularly good toughness, the elongation at break reaches 14.5-15.2MPa, and the elongation at break is 335 percent;
5. the roof heat-insulating waterproof coiled material prepared by the method has the advantages of heat resistance of 126-.
The specific implementation mode is as follows:
the invention is further illustrated below with reference to specific examples.
Example 1 Environment-friendly roofing heat-insulating waterproof roll and preparation method thereof
An environment-friendly roof heat-insulating waterproof coiled material comprises a base material layer, a foaming resin layer, an aluminum-plastic film layer, a butyl rubber bonding layer and a release film layer;
the base material layer is made of warp-knitted para-aramid fiber fabric;
the linear density of the para-aramid fiber is 1650 dtex, the yarn fineness is 1200D, and the mechanical twist is 10 twists/10 cm; after the para-aramid fiber is warp-knitted, the pore structure is hexagonal, the pore diameter of the pore structure is 0.2cmcm, and the thickness is 2 mm;
the preparation method of the environment-friendly roof heat-insulating waterproof roll comprises the following steps:
1. preparation of the substrate layer
Dipping the woven para-aramid fiber fabric, and then stretching and drying to attach and dip the mixed glue solution into the para-aramid fiber fabric;
the dipping treatment has the dipping speed of 25 m/min and the liquid carrying rate of 50 percent;
in the gum dipping treatment, the temperature of an oven in a front drying area is 160 ℃, the temperature of a stretching area is 210 ℃, the temperature of a rear drying area is 230 ℃, and the temperature of a recovery area is 160 ℃;
the stretching amount of the stretching area is 1.0 percent;
the gum dipping solution comprises the following components in percentage by weight: 90% of water, 0.2% of ammonia water solution, 0.8% of wetting agent OT solution, 3% of EX-313 epoxy resin and 6% of butyl pyridine latex;
the preparation method of the pre-immersion liquid comprises the following steps: adding water, ammonia water (10% solution), and wetting agent OT (5% solution) into a mixing tank, stirring for 30min, slowly adding epoxy resin and butadiene-pyridine latex into the above mixed solution, and rapidly stirring for 30min to dissolve to obtain pre-soaking solution;
2. preparation of foamed resin layer
The foaming resin layer comprises the following raw materials in parts by weight:
60 parts of linear low-density polyethylene, 10 parts of ethylene propylene diene monomer, 5 parts of attapulgite, 1 part of surfactant lecithin, 1 part of diatomite, 1 part of silicone oil, 2 parts of cross-linking agent, 5 parts of stabilizer dioctyltin oxide, 6 parts of foaming agent and 9 parts of foaming auxiliary agent;
wherein:
the cross-linking agent is di-tert-butyl peroxide (DTBP);
the foaming agent is a mixture of azodicarbonamide AC and sodium bicarbonate, and the mass ratio of the azodicarbonamide AC to the sodium bicarbonate is 1: 1;
the foaming auxiliary agent is zinc oxide;
the preparation method of the foaming resin layer comprises the following steps:
1) premixing
Weighing linear low-density polyethylene, ethylene propylene diene monomer, azodicarbonamide, lecithin, talcum powder, silicone oil, cross-linking agent and composite stabilizer according to a certain proportion, adding into a ball mill, mixing and grinding at a rotating speed of 400r/min for 3h to obtain a polyethylene premix;
2) one-step foaming forming
Placing the polyethylene premix, the foaming agent and the foaming auxiliary agent in a high-pressure kettle, keeping the temperature of the kettle at 100 ℃, keeping the pressure in the kettle at 4.5MPa, carrying out foaming reaction for 10 hours, and cooling along with the temperature to obtain a polyethylene pre-foamed product;
3) secondary foaming forming
Extruding the polyethylene pre-foamed product into a sheet by an extruder, wherein the extrusion temperature is 140 ℃, transferring the sheet to a foaming furnace for secondary foaming, wherein the temperature is 190 ℃, the pressure is 0.15MPa, the foaming time is 30min, and finally, cooling and shaping under normal pressure to obtain a foamed sheet;
the polyethylene foamed sheet has the apparent density of 36.5kg/cm3 and the thickness of 5.0 mm;
3. preparation of butyl rubber tie layer
The butyl rubber bonding layer comprises the following raw materials in parts by weight;
25 parts of butyl rubber, 5 parts of epoxy modified acrylic resin, 18 parts of terpene resin, 1 part of glass microsphere, 5 parts of diatomite, 3 parts of hindered phenol compound antioxidant B900, 1 part of vinyl tri (beta-methoxyethoxy) silane, 1 part of beta (3, 5-di-tert-butyl-4 hydroxyphenyl) propionic pentaerythritol and 4 parts of epoxidized soybean oil;
adding butyl rubber, epoxy modified acrylic resin, terpene resin, glass beads, diatomite, hindered phenol compound antioxidant B900, vinyl tri (beta-methoxyethoxy) silane and beta (3, 5-di-tert-butyl-4 hydroxyphenyl) pentaerythritol propionate into a kneader, then adding epoxy soybean oil, and stirring at high speed of 1500 r/min; plasticizing and extruding the mixture by a double-screw extruder, and setting the temperature of a die head at 145 ℃;
4. surface coating molding
And compounding the para-aramid fabric substrate layer, the foaming resin layer and the aluminum plastic film layer into a composite waterproof sheet by hot pressing, coating the butyl rubber bonding layer on the composite waterproof sheet by adopting an extrusion mode, and finally coating a release film layer on the surface to obtain a finished product of the roof heat-insulating waterproof coiled material.
Embodiment 2 environment-friendly roofing heat-insulating waterproof roll and preparation method thereof
An environment-friendly roof heat-insulating waterproof coiled material comprises a base material layer, a foaming resin layer, an aluminum-plastic film layer, a butyl rubber bonding layer and a release film layer;
the base material layer is made of warp-knitted para-aramid fiber fabric;
the linear density of the para-aramid fiber is 1850 dtex, the yarn fineness is 1200D, and the mechanical twist is 10 twists/10 cm; after the para-aramid fiber is warp-knitted, the pore structure is hexagonal, the pore diameter of the pore structure is 0.2cmcm, and the thickness is 3 mm;
the preparation method of the environment-friendly roof heat-insulating waterproof roll comprises the following steps:
1. preparation of the substrate layer
Dipping the woven para-aramid fiber fabric, and then stretching and drying to attach and dip the mixed glue solution into the para-aramid fiber fabric;
the dipping treatment has the dipping speed of 30 m/min and the liquid carrying rate of 60 percent;
in the gum dipping treatment, the temperature of an oven in a front drying area is 160 ℃, the temperature of a stretching area is 210 ℃, the temperature of a rear drying area is 230 ℃, and the temperature of a recovery area is 160 ℃;
the stretching amount of the stretching area is 1.5 percent;
the gum dipping solution comprises the following components in percentage by weight: 90% of water, 0.5% of ammonia water solution, 1% of wetting agent OT solution, 3% of EX-313 epoxy resin and 5.5% of butyl pyridine latex;
the preparation method of the pre-immersion liquid comprises the following steps: adding water, ammonia water (10% solution), and wetting agent OT (5% solution) into a mixing tank, stirring for 30min, slowly adding epoxy resin and butadiene-pyridine latex into the above mixed solution, and rapidly stirring for 30min to dissolve to obtain pre-soaking solution;
2. preparation of foamed resin layer
The foaming resin layer comprises the following raw materials in parts by weight:
65 parts of linear low-density polyethylene, 10 parts of ethylene propylene diene monomer, 5 parts of attapulgite, 1 part of surfactant lecithin, 1 part of diatomite, 1 part of silicone oil, 2 parts of cross-linking agent, 3 parts of stabilizer dioctyltin oxide, 6 parts of foaming agent and 6 parts of foaming auxiliary agent;
wherein:
the cross-linking agent is di-tert-butyl peroxide (DTBP);
the foaming agent is a mixture of azodicarbonamide AC and sodium bicarbonate, and the mass ratio of the azodicarbonamide AC to the sodium bicarbonate is 1: 1;
the foaming auxiliary agent is zinc oxide;
the preparation method of the foaming resin layer comprises the following steps:
1) premixing
Weighing linear low-density polyethylene, ethylene propylene diene monomer, azodicarbonamide, lecithin, talcum powder, silicone oil, cross-linking agent and composite stabilizer according to a certain proportion, adding into a ball mill, mixing and grinding at a rotating speed of 400r/min for 3h to obtain a polyethylene premix;
2) one-step foaming forming
Placing the polyethylene premix, the foaming agent and the foaming auxiliary agent in a high-pressure kettle, keeping the temperature of the kettle at 100 ℃, keeping the pressure in the kettle at 4.5MPa, carrying out foaming reaction for 10 hours, and cooling along with the temperature to obtain a polyethylene pre-foamed product;
3) secondary foaming forming
Extruding the polyethylene pre-foamed product into a sheet by an extruder, wherein the extrusion temperature is 140 ℃, transferring the sheet to a foaming furnace for secondary foaming, wherein the temperature is 190 ℃, the pressure is 0.15MPa, the foaming time is 30min, and finally, cooling and shaping under normal pressure to obtain a foamed sheet;
the polyethylene foamed sheet has the apparent density of 37.5kg/cm3 and the thickness of 8 mm;
3. preparation of butyl rubber tie layer
The butyl rubber bonding layer comprises the following raw materials in parts by weight;
25 parts of butyl rubber, 6 parts of epoxy modified acrylic resin, 20 parts of terpene resin, 1 part of glass microsphere, 6 parts of diatomite, 3 parts of hindered phenol compound antioxidant B900, 0.6 part of vinyl tri (beta-methoxyethoxy) silane, 1 part of beta (3, 5-di-tert-butyl-4 hydroxyphenyl) propionic pentaerythritol and 4 parts of epoxidized soybean oil;
adding butyl rubber, epoxy modified acrylic resin, terpene resin, glass beads, diatomite, hindered phenol compound antioxidant B900, vinyl tri (beta-methoxyethoxy) silane and beta (3, 5-di-tert-butyl-4 hydroxyphenyl) pentaerythritol propionate into a kneader, then adding epoxy soybean oil, and stirring at high speed of 1500 r/min; plasticizing and extruding by a double-screw extruder, and setting the die head temperature at 155 ℃;
4. surface coating molding
And compounding the para-aramid fabric substrate layer, the foaming resin layer and the aluminum plastic film layer into a composite waterproof sheet by hot pressing, coating the butyl rubber bonding layer on the composite waterproof sheet by adopting an extrusion mode, and finally coating a release film layer on the surface to obtain a finished product of the roof heat-insulating waterproof coiled material.
Embodiment 3 an environment-friendly roofing heat-insulating waterproof roll and a preparation method thereof
An environment-friendly roof heat-insulating waterproof coiled material comprises a base material layer, a foaming resin layer, an aluminum-plastic film layer, a butyl rubber bonding layer and a release film layer;
the base material layer is made of warp-knitted para-aramid fiber fabric;
the linear density of the para-aramid fiber is 2000 dtex, the yarn fineness is 1200D, and the mechanical twist is 15 twist/10 cm; after the para-aramid fiber is warp-knitted, the pore structure is hexagonal, the pore diameter of the pore structure is 0.5cm, and the thickness of the pore structure is 3 mm;
the preparation method of the environment-friendly roof heat-insulating waterproof roll comprises the following steps:
1. preparation of the substrate layer
Dipping the woven para-aramid fiber fabric, and then stretching and drying to attach and dip the mixed glue solution into the para-aramid fiber fabric;
the dipping treatment has the dipping speed of 30 m/min and the liquid carrying rate of 70 percent;
in the gum dipping treatment, the temperature of an oven in a front drying area is 160 ℃, the temperature of a stretching area is 210 ℃, the temperature of a rear drying area is 230 ℃, and the temperature of a recovery area is 160 ℃;
the stretching amount of the stretching area is 1.7%;
the gum dipping solution comprises the following components in percentage by weight: 89% of water, 0.2% of ammonia water solution, 0.8% of wetting agent OT solution, 4% of EX-313 epoxy resin and 6% of butyl pyridine latex;
the preparation method of the pre-immersion liquid comprises the following steps: adding water, ammonia water (10% solution), and wetting agent OT (5% solution) into a mixing tank, stirring for 30min, slowly adding epoxy resin and butadiene-pyridine latex into the above mixed solution, and rapidly stirring for 30min to dissolve to obtain pre-soaking solution;
2. preparation of foamed resin layer
The foaming resin layer comprises the following raw materials in parts by weight:
65 parts of linear low-density polyethylene, 10 parts of ethylene propylene diene monomer, 5 parts of attapulgite, 1 part of surfactant lecithin, 1 part of diatomite, 1 part of silicone oil, 2 parts of cross-linking agent, 3 parts of stabilizer dioctyltin oxide, 6 parts of foaming agent and 6 parts of foaming auxiliary agent;
wherein:
the cross-linking agent is di-tert-butyl peroxide (DTBP);
the foaming agent is a mixture of azodicarbonamide AC and sodium bicarbonate, and the mass ratio of the azodicarbonamide AC to the sodium bicarbonate is 1: 1;
the foaming auxiliary agent is zinc oxide;
the preparation method of the foaming resin layer comprises the following steps:
1) premixing
Weighing linear low-density polyethylene, ethylene propylene diene monomer, azodicarbonamide, lecithin, talcum powder, silicone oil, cross-linking agent and composite stabilizer according to a certain proportion, adding into a ball mill, mixing and grinding at a rotating speed of 400r/min for 3h to obtain a polyethylene premix;
2) one-step foaming forming
Placing the polyethylene premix, the foaming agent and the foaming auxiliary agent in a high-pressure kettle, keeping the temperature of the kettle at 100 ℃, keeping the pressure in the kettle at 4.5MPa, carrying out foaming reaction for 10 hours, and cooling along with the temperature to obtain a polyethylene pre-foamed product;
3) secondary foaming forming
Extruding the polyethylene pre-foamed product into a sheet by an extruder, wherein the extrusion temperature is 140 ℃, transferring the sheet to a foaming furnace for secondary foaming, wherein the temperature is 190 ℃, the pressure is 0.15MPa, the foaming time is 30min, and finally, cooling and shaping under normal pressure to obtain a foamed sheet;
the polyethylene foamed sheet has the apparent density of 35-40kg/cm3 and the thickness of 5-10 mm;
3. preparation of butyl rubber tie layer
The butyl rubber bonding layer comprises the following raw materials in parts by weight;
30 parts of butyl rubber, 6 parts of epoxy modified acrylic resin, 20 parts of terpene resin, 1 part of glass microsphere, 6 parts of diatomite, 5 parts of hindered phenol compound antioxidant B900, 1 part of vinyl tri (beta-methoxyethoxy) silane, 1 part of beta (3, 5-di-tert-butyl-4 hydroxyphenyl) propionic pentaerythritol and 5 parts of epoxidized soybean oil;
adding butyl rubber, epoxy modified acrylic resin, terpene resin, glass beads, diatomite, hindered phenol compound antioxidant B900, vinyl tri (beta-methoxyethoxy) silane and beta (3, 5-di-tert-butyl-4 hydroxyphenyl) pentaerythritol propionate into a kneader, then adding epoxy soybean oil, and stirring at high speed of 1500 r/min; plasticizing and extruding by a double-screw extruder, and setting the die head temperature at 155 ℃;
4. surface coating molding
And compounding the para-aramid fabric substrate layer, the foaming resin layer and the aluminum plastic film layer into a composite waterproof sheet by hot pressing, coating the butyl rubber bonding layer on the composite waterproof sheet by adopting an extrusion mode, and finally coating a release film layer on the surface to obtain a finished product of the roof heat-insulating waterproof coiled material.
The environmental-friendly roofing heat-preservation waterproof roll prepared by the technical scheme of the embodiment 1-3 is detected, and the relevant detection indexes are shown in the following table:
Figure DEST_PATH_IMAGE001
finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An environment-friendly roof heat-insulating waterproof coiled material is characterized by comprising a base material layer, a foaming resin layer, an aluminum-plastic film layer, a butyl rubber bonding layer and a release film layer;
the base material layer is made of warp-knitted para-aramid fiber fabric;
the foamed resin layer is a polyethylene foamed sheet, the apparent density is 35-40kg/cm3, and the thickness is 5-10 mm.
2. The waterproof roll according to claim 1, wherein the preparation method of the substrate layer comprises a dipping treatment of the warp-knitted para-aramid fiber fabric
The gum dipping solution comprises the following components in percentage by weight: 86-90% of water, 0.2-0.5% of ammonia water solution, 0.8-1% of wetting agent OT solution, 3-4% of EX-313 epoxy resin and 5-6% of butyl pyridine latex.
3. The waterproofing membrane according to claim 2, wherein the dipping treatment is performed at a dipping speed of 25 to 30 m/min and a liquid pick-up rate of 50 to 70%.
4. The waterproofing membrane according to claim 2, wherein the impregnation treatment comprises a drying temperature of 160-.
5. The waterproof roll according to claim 1, wherein the foamed resin layer comprises the following raw materials in parts by weight:
60-70 parts of linear low-density polyethylene, 10-15 parts of ethylene propylene diene monomer, 5-8 parts of attapulgite, 1-3 parts of surfactant lecithin, 1-5 parts of diatomite, 0.5-2 parts of silicone oil, 2-4 parts of a cross-linking agent, 3-5 parts of stabilizer dioctyltin oxide, 6-12 parts of a foaming agent and 6-12 parts of a foaming auxiliary agent.
6. The waterproofing membrane according to claim 5, wherein said crosslinking agent is di-tert-butyl peroxide DTBP.
7. The waterproof roll according to claim 5, wherein the foaming agent is a mixture of Azodicarbonamide (AC) and sodium bicarbonate, and the mass ratio of the Azodicarbonamide (AC) to the sodium bicarbonate is 1: 1.
8. The waterproof roll material according to claim 5, wherein the foaming aid is zinc oxide.
9. The waterproofing membrane according to claim 5, wherein the method for preparing the foamed resin layer comprises two-time foam molding;
the one-step foaming molding is carried out, the temperature of the kettle is 100 ℃, the pressure in the kettle is 4.5-5MPa, and the foaming reaction lasts for 9-10 h;
and the secondary foaming molding is carried out at the temperature of 190 ℃ and under the pressure of 0.15MPa for 20-30 min.
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