WO2021057846A1 - Aerogel eva light-weight breathable and thermal insulation composite material and preparation method therefor - Google Patents

Aerogel eva light-weight breathable and thermal insulation composite material and preparation method therefor Download PDF

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WO2021057846A1
WO2021057846A1 PCT/CN2020/117449 CN2020117449W WO2021057846A1 WO 2021057846 A1 WO2021057846 A1 WO 2021057846A1 CN 2020117449 W CN2020117449 W CN 2020117449W WO 2021057846 A1 WO2021057846 A1 WO 2021057846A1
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parts
eva
aerogel
thermal insulation
weight
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PCT/CN2020/117449
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French (fr)
Chinese (zh)
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刘谷
徐四发
胡勇杰
韩健健
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广州恩沣新材料科技有限公司
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    • 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
    • C08J9/0066—Use of inorganic compounding ingredients
    • C08J9/0071—Nanosized fillers, i.e. having at least one dimension below 100 nanometers
    • 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
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • 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
    • C08J9/04—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
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • 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
    • 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
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings
    • C08K5/3492—Triazines
    • C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic

Definitions

  • the invention relates to the technical field of composite materials, in particular to an aerogel EVA light-weight, breathable and heat-preserving composite material and a preparation method thereof.
  • Aerogel is a nanoporous amorphous material with a continuous three-dimensional network structure. It is the lightest solid in the world. It is called “solid smoke” and has low density (0.003-0.3g/cm3) and high porosity ( 80%-99.8%), large specific surface area (100-1600m2/g) and low thermal conductivity (10-40mW/(m ⁇ K)), etc., are expected to be: "the magical material that changes the world", in aerospace , Petrochemical industry, environmental treatment, energy storage and conversion, building insulation and many other fields have potential application value.
  • the EVA composite foam material is a widely used high-quality material.
  • an aerogel EVA light-weight, breathable and heat-insulating composite material including the following raw materials in parts by weight:
  • the quick-curing agent is triallyl cyanurate; the foaming agent is azodicarbonamide.
  • the active agent is one or two of stearic acid and zinc stearate.
  • the filler is one or two of light calcium carbonate and talc.
  • the antioxidant is a hindered phenol antioxidant.
  • antioxidant is CHEMNOX-B900.
  • the present invention also provides the following technical solution: a preparation method of aerogel EVA lightweight breathable thermal insulation composite material, including the following steps:
  • the above-mentioned granulated material is plasticized, and the plasticizing temperature is controlled at 80-90°C, and then the plasticized material is injected into the evacuated chest cavity of the mold for heating;
  • the finalized EVA foam product is subjected to splitting treatment and perforation treatment in sequence to obtain an aerogel EVA light-weight, breathable and heat-preserving composite sheet.
  • the thickness of the aerogel EVA light-weight breathable and heat-preserving composite sheet is 0.4-100 mm, and the perforated hole diameter is 1-10 mm.
  • the refining temperature is 50-60°C
  • the refining time is controlled at 5-8min
  • the granulation temperature is controlled at 85-95°C.
  • the injection pressure is greater than or equal to 65MPa
  • the injection speed is greater than or equal to 200mm/s
  • the temperature is controlled within the range of 170-180°C
  • the heating time is controlled within the range of 400-1200s.
  • the mold opening speed is ⁇ 350mm/s.
  • the aerogel EVA lightweight breathable thermal insulation composite material prepared by the preparation method of the present invention has the advantages of softness, lightness, breathability, and excellent thermal insulation effect, and is suitable for lightweight clothing, shoe materials, gloves, etc. Home textiles; and the manufacturing process is simple, and the preparation cost is low.
  • the aerogel EVA light-weight breathable thermal insulation composite material of the present invention includes the following raw materials in parts by weight:
  • ethylene-vinyl acetate copolymer (EVA); 0.5 ⁇ 20 parts of nano aerogel; 0.5 ⁇ 5 parts of active agent; 0.1 ⁇ 0.3 parts of rapid curing agent; 2.0 ⁇ 3.0 parts of foaming Agent; 3.0 to 7.0 parts of filler; 1.0 to 2.0 parts of antioxidant.
  • the active agent is one or two of stearic acid and zinc stearate; the quick-curing agent is triallyl cyanurate; the foaming agent is azodicarbonamide; the filler is light carbonic acid One or two of calcium and talc; the antioxidant is a hindered phenolic antioxidant, such as CHEMNOX-B900.
  • the above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
  • the above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ⁇ 350mm/s.
  • the prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
  • the finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation
  • the composite sheet has a hole diameter of 1-10 mm.
  • the above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
  • the above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ⁇ 350mm/s.
  • the prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
  • the finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation
  • the composite sheet has a hole diameter of 1-10 mm.
  • the above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
  • the above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ⁇ 350mm/s.
  • the prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
  • the finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation
  • the composite sheet has a hole diameter of 1-10 mm.
  • the above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
  • the above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ⁇ 350mm/s.
  • the prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
  • the finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation
  • the composite sheet has a hole diameter of 1-10 mm.
  • the above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
  • the above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ⁇ 350mm/s.
  • the prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
  • the finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation
  • the composite sheet has a hole diameter of 1-10 mm.
  • the above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
  • the prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
  • the finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation
  • the composite sheet has a hole diameter of 1-10 mm.
  • the aerogel EVA lightweight thermal insulation composite material and the preparation method thereof of the present invention have the following advantages:
  • the prepared aerogel EVA lightweight thermal insulation composite material has the advantages of softness, lightness, breathability, and excellent thermal insulation effect. It is suitable for a variety of technical fields, especially for lightweight clothing, shoe materials, gloves, home textiles (bed Supplies), tents, etc.; and the manufacturing process is simple, and the preparation cost is low.
  • any combination of the various embodiments of the present invention should be regarded as the disclosure of the present invention; within the scope of the technical concept of the present invention, a variety of simple modifications and changes are made to the technical solution. Any combination of different embodiments that does not violate the idea created by the present invention should fall within the protection scope of the present invention.

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  • Engineering & Computer Science (AREA)
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  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention provides an aerogel EVA light-weight breathable and thermal insulation composite material and a preparation method therefor. The aerogel EVA light-weight breathable and thermal insulation composite material comprises the following raw materials in parts by weight: 72.4 to 87.8 parts of an ethylene-vinyl acetate copolymer; 0.5 to 20 parts of nano aerogel; 0.5 to 5 parts of an active agent; 0.1 to 0.3 parts of a fast vulcanizing agent; 2.0 to 3.0 parts of a foaming agent; 3.0 to 7.0 parts of a filler; and 1.0 to 2.0 parts of an antioxidant. For the aerogel EVA light-weight breathable and thermal insulation composite material and the preparation method therefor of the present invention, the produced aerogel EVA light-weight breathable and thermal insulation composite material has the advantages of being flexible, light and thin, breathable, and having excellent thermal insulation effects, and has simple manufacturing process and low preparation cost.

Description

一种气凝胶EVA轻质透气保温复合材料及其制备方法Aerogel EVA light-weight breathable thermal insulation composite material and preparation method thereof 技术领域Technical field
本发明涉及复合材料技术领域，尤其涉及一种气凝胶EVA轻质透气保温复合材料及其制备方法。The invention relates to the technical field of composite materials, in particular to an aerogel EVA light-weight, breathable and heat-preserving composite material and a preparation method thereof.
背景技术Background technique
气凝胶是纳米多孔非晶态材料，具有连续的三维网络结构，是世界上最轻的固体，有“固态烟雾”之称，具有低密度(0.003-0.3g/cm3)、高孔隙率(80％-99.8％)、大比表面积(100-1600m2/g)和低导热率(10-40mW/(m·K))等优点，被期许为：“改变世界的神奇材料”，在航空航天、石油化工、环境处理、能量储存与转化、建筑保温等诸多领域具有潜在应用价值。而EVA复合发泡材料是一种被广泛使用的优质材料，具有良好的防震、缓冲性能，隔热，保温防寒及低温性能优异，可耐严寒和曝晒，密闭泡孔，隔音效果好，密闭泡孔结构、不吸水、防潮、耐水性能良好，耐海水、油脂、酸、碱等化学品腐蚀，抗菌、无毒、无味、无污染的优点。Aerogel is a nanoporous amorphous material with a continuous three-dimensional network structure. It is the lightest solid in the world. It is called "solid smoke" and has low density (0.003-0.3g/cm3) and high porosity ( 80%-99.8%), large specific surface area (100-1600m2/g) and low thermal conductivity (10-40mW/(m·K)), etc., are expected to be: "the magical material that changes the world", in aerospace , Petrochemical industry, environmental treatment, energy storage and conversion, building insulation and many other fields have potential application value. The EVA composite foam material is a widely used high-quality material. It has good shock resistance, cushioning properties, excellent heat insulation, heat preservation, cold resistance and low temperature performance, resistance to severe cold and exposure, airtight cells, good sound insulation, and airtight foam Pore structure, non-absorbent, moisture-proof, good water resistance, resistance to sea water, grease, acid, alkali and other chemical corrosion, antibacterial, non-toxic, tasteless, and non-polluting advantages.
如何将上述两种材料进行复合，制作出一种同时具备两种材料优点的复合材料成为业界急需解决的问题。How to combine the above two materials to produce a composite material with the advantages of both materials has become an urgent problem in the industry.
发明内容Summary of the invention
本发明采用的技术方案为：一种气凝胶EVA轻质透气保温复合材料，包括以下重量份数的原料：The technical scheme adopted by the present invention is: an aerogel EVA light-weight, breathable and heat-insulating composite material, including the following raw materials in parts by weight:
72.4～87.8份的乙烯-醋酸乙烯酯共聚物；0.5～20份的纳米气凝胶；0.5～5份的活性剂；0.1～0.3份的快熟剂；2.0～3.0份的发泡剂；3.0～7.0份的填充剂；1.0～2.0份的抗氧剂；72.4 to 87.8 parts of ethylene-vinyl acetate copolymer; 0.5 to 20 parts of nano aerogel; 0.5 to 5 parts of active agent; 0.1 to 0.3 parts of rapid curing agent; 2.0 to 3.0 parts of foaming agent; 3.0 ～7.0 parts of filler; 1.0～2.0 parts of antioxidant;
所述快熟剂为三烯丙基氰尿酸酯；所述发泡剂为偶氮二甲酰胺。The quick-curing agent is triallyl cyanurate; the foaming agent is azodicarbonamide.
进一步地，所述活性剂为硬脂酸、硬脂酸锌中的一种或两种。Further, the active agent is one or two of stearic acid and zinc stearate.
进一步地，所述填充剂为轻质碳酸钙、滑石粉中的一种或两种。Further, the filler is one or two of light calcium carbonate and talc.
进一步地，所述抗氧剂为受阻酚类抗氧剂。Further, the antioxidant is a hindered phenol antioxidant.
进一步地，所述抗氧剂为CHEMNOX-B900。Further, the antioxidant is CHEMNOX-B900.
本发明还提供如下技术方案：一种气凝胶EVA轻质透气保温复合材料的制备方法，包括以下步骤：The present invention also provides the following technical solution: a preparation method of aerogel EVA lightweight breathable thermal insulation composite material, including the following steps:
取重量份数72.4～87.8份的乙烯-醋酸乙烯酯共聚物、0.5～20重量份的纳米气凝胶、0.5～5重量份的活性剂；0.1～0.3重量份的快熟剂；2.0～3.0重量份的发泡剂；3.0～7.0重量份的填充剂；1.0～2.0重量份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min后，放到开炼机中进行均匀压片后再进行造粒；Take 72.4-87.8 parts by weight of ethylene-vinyl acetate copolymer, 0.5-20 parts by weight of nano aerogel, 0.5-5 parts by weight of active agent; 0.1-0.3 parts by weight of quick-curing agent; 2.0-3.0 parts by weight Parts by weight of foaming agent; 3.0 to 7.0 parts by weight of filler; 1.0 to 2.0 parts by weight of antioxidant added to the internal mixer for mixing and stirring; then after mixing for 8 to 10 minutes at a temperature of 80 to 90°C , Put it in the open mill for uniform tableting and then granulate;
将上述造粒好的材料进行塑化加工，塑化温度控制在80～90℃，然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温；The above-mentioned granulated material is plasticized, and the plasticizing temperature is controlled at 80-90°C, and then the plasticized material is injected into the evacuated chest cavity of the mold for heating;
将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；Carry out the high-speed mold opening of the above-prepared product, and let the product be foamed outside the mold to obtain an EVA foam product;
将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型；Send the prepared EVA foamed product to a constant temperature conveyor belt whose temperature is controlled in the range of 50～60℃ for heat treatment and shaping;
将定型后的EVA发泡产品依次进行劈刀处理和打孔处理，得到气凝胶EVA轻质透气保温复合片材。The finalized EVA foam product is subjected to splitting treatment and perforation treatment in sequence to obtain an aerogel EVA light-weight, breathable and heat-preserving composite sheet.
进一步地，所述气凝胶EVA轻质透气保温复合片材的厚度为0.4～100mm，打孔的孔径为1～10mm。Further, the thickness of the aerogel EVA light-weight breathable and heat-preserving composite sheet is 0.4-100 mm, and the perforated hole diameter is 1-10 mm.
进一步地，炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。Further, the refining temperature is 50-60°C, the refining time is controlled at 5-8min, and the granulation temperature is controlled at 85-95°C.
进一步地，注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。Further, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
进一步地，开模速度≥350mm/s。Further, the mold opening speed is ≥350mm/s.
相较于现有技术，采用本发明的制备方法制得的气凝胶EVA轻质透气保温复合材料具有柔软、轻薄、透气、保温效果优异的优点，适用于轻薄式服装、鞋材、手套、家居家纺；且制造工艺简单，制备成本低。Compared with the prior art, the aerogel EVA lightweight breathable thermal insulation composite material prepared by the preparation method of the present invention has the advantages of softness, lightness, breathability, and excellent thermal insulation effect, and is suitable for lightweight clothing, shoe materials, gloves, etc. Home textiles; and the manufacturing process is simple, and the preparation cost is low.
具体实施方式detailed description
以下对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。The specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and not to limit the present invention.
本发明的气凝胶EVA轻质透气保温复合材料包括以下重量份数的原料：The aerogel EVA light-weight breathable thermal insulation composite material of the present invention includes the following raw materials in parts by weight:
72.4～87.8份的乙烯-醋酸乙烯酯共聚物(EVA)；0.5～20份的纳米气凝胶；0.5～5份的活性剂；0.1～0.3份的快熟剂；2.0～3.0份的发泡剂；3.0～7.0份的填充剂；1.0～2.0份的抗氧剂。其中，活性剂为硬脂酸、硬脂酸锌中的一种或两种；快熟剂为三烯丙基氰尿酸酯；发泡剂为偶氮二甲酰胺；填充剂为轻质碳酸钙、滑石粉中的一种或两种；抗氧剂为受阻酚类抗氧剂，如：CHEMNOX-B900。72.4～87.8 parts of ethylene-vinyl acetate copolymer (EVA); 0.5～20 parts of nano aerogel; 0.5～5 parts of active agent; 0.1～0.3 parts of rapid curing agent; 2.0～3.0 parts of foaming Agent; 3.0 to 7.0 parts of filler; 1.0 to 2.0 parts of antioxidant. Among them, the active agent is one or two of stearic acid and zinc stearate; the quick-curing agent is triallyl cyanurate; the foaming agent is azodicarbonamide; the filler is light carbonic acid One or two of calcium and talc; the antioxidant is a hindered phenolic antioxidant, such as CHEMNOX-B900.
实施例一Example one
取重量份数82.9份的乙烯-醋酸乙烯酯共聚物、3.0份的纳米气凝胶、2.0份的硬质酸、2.0份的硬脂酸锌、0.1份的三烯丙基氰尿酸酯、2.0份的偶氮二甲酰胺、4.0份的轻质碳酸钙、3.0份的滑石粉、以及1.0份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min后，放到开炼机中进行均匀压片后再进行造粒；其中，开炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。Take 82.9 parts by weight of ethylene-vinyl acetate copolymer, 3.0 parts of nano aerogel, 2.0 parts of stearic acid, 2.0 parts of zinc stearate, 0.1 parts of triallyl cyanurate, 2.0 parts of azodicarbonamide, 4.0 parts of light calcium carbonate, 3.0 parts of talc, and 1.0 parts of antioxidant are added to the internal mixer and mixed and stirred; then the temperature is 80～90℃. After refining for 8-10 minutes, put it in an open mill for uniform tableting and then granulate; the refining temperature is 50-60℃, the refining time is controlled at 5-8min, and the granulation temperature is controlled at 85-95 ℃.
将上述造粒好的材料输入螺杆式注射机的料筒中进行塑化加工，塑化温度控制在80～90℃；然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温，其中，注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。The above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；其中，开模速度≥350mm/s。The above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ≥350mm/s.
将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型。The prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
将定型后的EVA发泡产品进行劈刀处理，得到厚度为0.4～100mm的气凝胶EVA保温复合片材，再将制得的片材进行打孔处理，得到气凝胶EVA轻质透气保温复合片材，其中，打孔的孔径为1～10mm。The finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation The composite sheet has a hole diameter of 1-10 mm.
实施例二Example two
取重量份数79.9份的乙烯-醋酸乙烯酯共聚物、5.0份的纳米气凝胶、5.0份的硬质酸、0.1份的三烯丙基氰尿酸酯、3.0份的偶氮二甲酰胺、2.0份的轻质碳酸钙、4.0份的滑石粉、以及1.0份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min后，放到开炼机中进行均匀压片后再进行造粒；其中，开炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。Take 79.9 parts by weight of ethylene-vinyl acetate copolymer, 5.0 parts of nano aerogel, 5.0 parts of stearic acid, 0.1 parts of triallyl cyanurate, and 3.0 parts of azodicarbonamide , 2.0 parts of light calcium carbonate, 4.0 parts of talc powder, and 1.0 part of antioxidants are added to the internal mixer and mixed and stirred; then at a temperature of 80～90℃, the mixture is mixed for 8～10min, and then placed in the mixer. After uniform tableting is performed in the open mill, the granulation is carried out; wherein the open refining temperature is 50-60°C, the open refining time is controlled at 5-8min, and the granulation temperature is controlled at 85-95°C.
将上述造粒好的材料输入螺杆式注射机的料筒中进行塑化加工，塑化温度控制在80～90℃；然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温，其中，注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。The above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；其中，开模速度≥350mm/s。The above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ≥350mm/s.
将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型。The prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
将定型后的EVA发泡产品进行劈刀处理，得到厚度为0.4～100mm的气凝胶EVA保温复合片材，再将制得的片材进行打孔处理，得到气凝胶EVA轻质透气保温复合片材，其中，打孔 的孔径为1～10mm。The finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation The composite sheet has a hole diameter of 1-10 mm.
实施例三Example three
取重量份数80.2份的乙烯-醋酸乙烯酯共聚物、10.0份的纳米气凝胶、1.0份的硬质酸、1.0份的硬脂酸锌、0.3份的三烯丙基氰尿酸酯、2.0份的偶氮二甲酰胺、2.0份的轻质碳酸钙、2.0份的滑石粉、以及1.5份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min后，放到开炼机中进行均匀压片后再进行造粒；其中，开炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。Take 80.2 parts by weight of ethylene-vinyl acetate copolymer, 10.0 parts of nanoaerogel, 1.0 parts of stearic acid, 1.0 parts of zinc stearate, 0.3 parts of triallyl cyanurate, Add 2.0 parts of azodicarbonamide, 2.0 parts of light calcium carbonate, 2.0 parts of talcum powder, and 1.5 parts of antioxidant into the internal mixer, mix and stir; After refining for 8-10 minutes, put it in an open mill for uniform tableting and then granulate; the refining temperature is 50-60℃, the refining time is controlled at 5-8min, and the granulation temperature is controlled at 85-95 ℃.
将上述造粒好的材料输入螺杆式注射机的料筒中进行塑化加工，塑化温度控制在80～90℃；然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温，其中，注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。The above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；其中，开模速度≥350mm/s。The above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ≥350mm/s.
将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型。The prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
将定型后的EVA发泡产品进行劈刀处理，得到厚度为0.4～100mm的气凝胶EVA保温复合片材，再将制得的片材进行打孔处理，得到气凝胶EVA轻质透气保温复合片材，其中，打孔的孔径为1～10mm。The finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation The composite sheet has a hole diameter of 1-10 mm.
实施例四Example four
取重量份数87.8份的乙烯-醋酸乙烯酯共聚物、0.5份的纳米气凝胶、0.5份的硬质酸、0.2份的三烯丙基氰尿酸酯、3.0份的偶氮二甲酰胺、3.0份的轻质碳酸钙、3.0份的滑石粉、以及2.0份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min后，放到开炼机中进行均匀压片后再进行造粒；其中，开炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。Take 87.8 parts by weight of ethylene-vinyl acetate copolymer, 0.5 parts of nanoaerogel, 0.5 parts of stearic acid, 0.2 parts of triallyl cyanurate, and 3.0 parts of azodicarbonamide , 3.0 parts of light calcium carbonate, 3.0 parts of talc powder, and 2.0 parts of antioxidants are added to the internal mixer to mix and stir; then mix for 8～10min under the condition of 80～90℃, then put it in After uniform tableting is performed in the open mill, the granulation is carried out; wherein the open refining temperature is 50-60°C, the open refining time is controlled at 5-8min, and the granulation temperature is controlled at 85-95°C.
将上述造粒好的材料输入螺杆式注射机的料筒中进行塑化加工，塑化温度控制在80～90℃；然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温，其中，注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。The above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；其中，开模速度≥350mm/s。The above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ≥350mm/s.
将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型。The prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
将定型后的EVA发泡产品进行劈刀处理，得到厚度为0.4～100mm的气凝胶EVA保温复合片材，再将制得的片材进行打孔处理，得到气凝胶EVA轻质透气保温复合片材，其中，打孔的孔径为1～10mm。The finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation The composite sheet has a hole diameter of 1-10 mm.
实施例五Example five
取重量份数77.4份的乙烯-醋酸乙烯酯共聚物、14份的纳米气凝胶、1.0份的硬质酸锌、0.1份的三烯丙基氰尿酸酯、2.5份的偶氮二甲酰胺、2.0份的轻质碳酸钙、2.0份的滑石粉、以及1.0份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min，放到开炼机中进行均匀压片后再进行造粒；其中，开炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。Take 77.4 parts by weight of ethylene-vinyl acetate copolymer, 14 parts of nano aerogel, 1.0 part of zinc stearate, 0.1 part of triallyl cyanurate, and 2.5 parts of azodimethyl Add amide, 2.0 parts of light calcium carbonate, 2.0 parts of talc powder, and 1.0 part of antioxidant into the internal mixer, mix and stir; then mix for 8～10min at a temperature of 80～90℃, and put it in After uniform tableting is performed in the open mill, the granulation is carried out; wherein the open refining temperature is 50-60°C, the open refining time is controlled at 5-8min, and the granulation temperature is controlled at 85-95°C.
将上述造粒好的材料输入螺杆式注射机的料筒中进行塑化加工，塑化温度控制在80～90℃；然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温，其中，注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。The above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；其中，开模速度≥350mm/s。The above-prepared product is opened at high speed, and the product is foamed outside the mold to obtain an EVA foamed product; wherein, the opening speed is ≥350mm/s.
将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型。The prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
将定型后的EVA发泡产品进行劈刀处理，得到厚度为0.4～100mm的气凝胶EVA保温复合片材，再将制得的片材进行打孔处理，得到气凝胶EVA轻质透气保温复合片材，其中，打孔的孔径为1～10mm。The finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation The composite sheet has a hole diameter of 1-10 mm.
实施例六Example Six
取重量份数72.4份的乙烯-醋酸乙烯酯共聚物、20份的纳米气凝胶、1.0份的硬质酸、0.5份的硬脂酸锌、0.1份的三烯丙基氰尿酸酯、2.0份的偶氮二甲酰胺、2.0份的轻质碳酸钙、1.0份的滑石粉、以及1.0份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min后，放到开炼机中进行均匀压片后再进行造粒；其中，开炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。Take 72.4 parts by weight of ethylene-vinyl acetate copolymer, 20 parts of nano aerogel, 1.0 part of stearic acid, 0.5 part of zinc stearate, 0.1 part of triallyl cyanurate, Add 2.0 parts of azodicarbonamide, 2.0 parts of light calcium carbonate, 1.0 part of talcum powder, and 1.0 part of antioxidant into the internal mixer, mix and stir; After refining for 8-10 minutes, put it in an open mill for uniform tableting and then granulate; the refining temperature is 50-60℃, the refining time is controlled at 5-8min, and the granulation temperature is controlled at 85-95 ℃.
将上述造粒好的材料输入螺杆式注射机的料筒中进行塑化加工，塑化温度控制在80～90℃；然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温，其中，注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。The above-mentioned granulated material is fed into the barrel of a screw injection machine for plasticization processing, and the plasticization temperature is controlled at 80-90°C; then the plasticized material is injected into the evacuated chest cavity of the mold for heating, Among them, the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is controlled within the range of 400-1200s.
将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；其中，开 模速度≥350mm/s。Carry out the high-speed mold opening of the above-prepared product, and let the product be foamed outside the mold to obtain an EVA foamed product; wherein, the mold opening speed is ≥350mm/s.
将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型。The prepared EVA foamed product is sent to a constant temperature conveyor belt whose temperature is controlled within the range of 50-60°C for heat treatment and shaping.
将定型后的EVA发泡产品进行劈刀处理，得到厚度为0.4～100mm的气凝胶EVA保温复合片材，再将制得的片材进行打孔处理，得到气凝胶EVA轻质透气保温复合片材，其中，打孔的孔径为1～10mm。The finalized EVA foam product is cleaved to obtain an aerogel EVA thermal insulation composite sheet with a thickness of 0.4-100mm, and then the prepared sheet is perforated to obtain aerogel EVA lightweight, breathable thermal insulation The composite sheet has a hole diameter of 1-10 mm.
对比例1Comparative example 1
取重量份数88.9份的乙烯-醋酸乙烯酯共聚物、3.0份的硬质酸、0.1份的三烯丙基氰尿酸酯、2.0份的偶氮二甲酰胺、3.0份的轻质碳酸钙、3.0份的滑石粉、以及1.0份的抗氧剂制得复合材料。Take 88.9 parts by weight of ethylene-vinyl acetate copolymer, 3.0 parts of stearic acid, 0.1 parts of triallyl cyanurate, 2.0 parts of azodicarbonamide, 3.0 parts of light calcium carbonate , 3.0 parts of talcum powder, and 1.0 parts of antioxidant to prepare a composite material.
对上述实施例1-6以及对比例1进行各项性能测试，测试的结果如下所示：Various performance tests were performed on the foregoing Examples 1-6 and Comparative Example 1, and the test results are as follows:
Figure PCTCN2020117449-appb-000001
Figure PCTCN2020117449-appb-000001
Figure PCTCN2020117449-appb-000002
Figure PCTCN2020117449-appb-000002
综上，本发明的气凝胶EVA轻质保温复合材料及其制备方法具有以下优点：In summary, the aerogel EVA lightweight thermal insulation composite material and the preparation method thereof of the present invention have the following advantages:
1、制得的气凝胶EVA轻质保温复合材料具有柔软、轻薄、透气、保温效果优异的优点，适用于多种技术领域，尤其适用于轻薄式服装、鞋材、手套、家居家纺(床上用品)、帐篷等；且制造工艺简单，制备成本低，。1. The prepared aerogel EVA lightweight thermal insulation composite material has the advantages of softness, lightness, breathability, and excellent thermal insulation effect. It is suitable for a variety of technical fields, especially for lightweight clothing, shoe materials, gloves, home textiles (bed Supplies), tents, etc.; and the manufacturing process is simple, and the preparation cost is low.
2、通过有机-无机杂化技术，实现将纳米气凝胶与乙烯-醋酸乙烯共聚物(EVA)在微观尺寸上进行有效的结合的。此外，通过采用共混法，将纳米气凝胶与乙烯-醋酸乙烯共聚物融为一体，制成新的复合材料。2. Through organic-inorganic hybrid technology, the effective combination of nano-aerogel and ethylene-vinyl acetate copolymer (EVA) on the microscopic size is realized. In addition, by adopting the blending method, the nano aerogel and the ethylene-vinyl acetate copolymer are integrated into a new composite material.
只要不违背本发明创造的思想，对本发明的各种不同实施例进行任意组合，均应当视为本发明公开的内容；在本发明的技术构思范围内，对技术方案进行多种简单的变型及不同实施例进行的不违背本发明创造的思想的任意组合，均应在本发明的保护范围之内。As long as it does not violate the idea created by the present invention, any combination of the various embodiments of the present invention should be regarded as the disclosure of the present invention; within the scope of the technical concept of the present invention, a variety of simple modifications and changes are made to the technical solution. Any combination of different embodiments that does not violate the idea created by the present invention should fall within the protection scope of the present invention.

Claims (10)

  1. 一种气凝胶EVA轻质透气保温复合材料，其特征在于，包括以下重量份数的原料：An aerogel EVA lightweight, breathable and thermal insulation composite material, which is characterized in that it comprises the following raw materials in parts by weight:
    72.4～87.8份的乙烯-醋酸乙烯酯共聚物；0.5～20份的纳米气凝胶；0.5～5份的活性剂；0.1～0.3份的快熟剂；2.0～3.0份的发泡剂；3.0～7.0份的填充剂；1.0～2.0份的抗氧剂；72.4 to 87.8 parts of ethylene-vinyl acetate copolymer; 0.5 to 20 parts of nano aerogel; 0.5 to 5 parts of active agent; 0.1 to 0.3 parts of rapid curing agent; 2.0 to 3.0 parts of foaming agent; 3.0 ～7.0 parts of filler; 1.0～2.0 parts of antioxidant;
    所述快熟剂为三烯丙基氰尿酸酯；所述发泡剂为偶氮二甲酰胺。The quick-curing agent is triallyl cyanurate; the foaming agent is azodicarbonamide.
  2. 如权利要求1所述的气凝胶EVA轻质透气保温复合材料，其特征在于：所述活性剂为硬脂酸、硬脂酸锌中的一种或两种。The aerogel EVA lightweight breathable thermal insulation composite material according to claim 1, wherein the active agent is one or two of stearic acid and zinc stearate.
  3. 如权利要求1所述的气凝胶EVA轻质透气保温复合材料，其特征在于：所述填充剂为轻质碳酸钙、滑石粉中的一种或两种。The aerogel EVA lightweight breathable thermal insulation composite material according to claim 1, wherein the filler is one or two of light calcium carbonate and talc.
  4. 如权利要求1所述的气凝胶EVA轻质透气保温复合材料，其特征在于：所述抗氧剂为受阻酚类抗氧剂。The aerogel EVA lightweight breathable thermal insulation composite material according to claim 1, wherein the antioxidant is a hindered phenolic antioxidant.
  5. 如权利要求1所述的气凝胶EVA轻质透气保温复合材料，其特征在于：所述抗氧剂为CHEMNOX-B900。The aerogel EVA lightweight breathable thermal insulation composite material according to claim 1, wherein the antioxidant is CHEMNOX-B900.
  6. 一种气凝胶EVA轻质透气保温复合材料的制备方法，其特征在于，包括以下步骤：A preparation method of aerogel EVA lightweight breathable thermal insulation composite material, which is characterized in that it comprises the following steps:
    取重量份数72.4～87.8份的乙烯-醋酸乙烯酯共聚物、0.5～20重量份的纳米气凝胶、0.5～5重量份的活性剂；0.1～0.3重量份的快熟剂；2.0～3.0重量份的发泡剂；3.0～7.0重量份的填充剂；1.0～2.0重量份的抗氧剂加入密炼机中混合搅拌；然后在温度为80～90℃的条件下密炼8～10min后，放到开炼机中进行均匀压片后再进行造粒；Take 72.4-87.8 parts by weight of ethylene-vinyl acetate copolymer, 0.5-20 parts by weight of nano aerogel, 0.5-5 parts by weight of active agent; 0.1-0.3 parts by weight of quick-curing agent; 2.0-3.0 parts by weight Parts by weight of foaming agent; 3.0 to 7.0 parts by weight of filler; 1.0 to 2.0 parts by weight of antioxidant added to the internal mixer for mixing and stirring; then after mixing for 8 to 10 minutes at a temperature of 80 to 90°C , Put it in the open mill for uniform tableting and then granulate;
    将上述造粒好的材料进行塑化加工，塑化温度控制在80～90℃，然后将塑化好的材料注射到已抽真空的模具胸腔内进行加温；The above-mentioned granulated material is plasticized, and the plasticizing temperature is controlled at 80-90°C, and then the plasticized material is injected into the evacuated chest cavity of the mold for heating;
    将上述制得的产品进行高速开模，让产品模外发泡成型，制得EVA发泡产品；Carry out the high-speed mold opening of the above-prepared product, and let the product be foamed outside the mold to obtain an EVA foam product;
    将制得的EVA发泡产品送入温度控制在50～60℃范围内的恒温输送带进行热处理定型；Send the prepared EVA foamed product to a constant temperature conveyor belt whose temperature is controlled in the range of 50～60℃ for heat treatment and shaping;
    将定型后的EVA发泡产品依次进行劈刀处理和打孔处理，得到气凝胶EVA轻质透气保温复合片材。The finalized EVA foam product is subjected to splitting treatment and perforation treatment in sequence to obtain an aerogel EVA light-weight, breathable and heat-preserving composite sheet.
  7. 如权利要求6所述的气凝胶EVA轻质透气保温复合材料的制备方法，其特征在于：所述气凝胶EVA轻质透气保温复合片材的厚度为0.4～100mm，打孔的孔径为1～10mm。The method for preparing aerogel EVA lightweight breathable thermal insulation composite material according to claim 6, characterized in that the thickness of the aerogel EVA lightweight breathable thermal insulation composite sheet is 0.4-100mm, and the perforated aperture is 1～10mm.
  8. 如权利要求6所述的气凝胶EVA轻质透气保温复合材料的制备方法，其特征在于：开炼温度为50～60℃，开炼时间控制在5～8min，造粒温度控制在85～95℃。The method for preparing aerogel EVA lightweight breathable thermal insulation composite material according to claim 6, characterized in that: the open-smelting temperature is 50-60℃, the open-smelting time is controlled at 5-8min, and the granulation temperature is controlled at 85- 95°C.
  9. 如权利要求6所述的气凝胶EVA轻质透气保温复合材料的制备方法，其特征在于：注射压力≥65MPa，注射速度≥200mm/s，温度控制在170～180℃范围内，加温时间控制在400～1200s范围内。The method for preparing aerogel EVA lightweight breathable thermal insulation composite material according to claim 6, characterized in that the injection pressure is greater than or equal to 65MPa, the injection speed is greater than or equal to 200mm/s, the temperature is controlled within the range of 170-180°C, and the heating time is Control in the range of 400～1200s.
  10. 如权利要求6所述的气凝胶EVA轻质透气保温复合材料的制备方法，其特征在于：开模速度≥350mm/s。The method for preparing aerogel EVA lightweight breathable and heat-insulating composite material according to claim 6, characterized in that: the mold opening speed is greater than or equal to 350 mm/s.
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