WO2019001003A1 - High flame retardancy composite material for high voltage cable of new energy automobile, and preparation method thereof - Google Patents

High flame retardancy composite material for high voltage cable of new energy automobile, and preparation method thereof Download PDF

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WO2019001003A1
WO2019001003A1 PCT/CN2018/078163 CN2018078163W WO2019001003A1 WO 2019001003 A1 WO2019001003 A1 WO 2019001003A1 CN 2018078163 W CN2018078163 W CN 2018078163W WO 2019001003 A1 WO2019001003 A1 WO 2019001003A1
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composite material
new energy
flame
flame retardant
antioxidant
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PCT/CN2018/078163
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French (fr)
Chinese (zh)
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陈敏
李小刚
张怡
张丽本
顾金云
邓之俊
王兴宁
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江苏德威新材料股份有限公司
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

Definitions

  • the invention relates to a high flame-retardant composite material for high-voltage lines of new energy vehicles and a preparation method thereof.
  • the materials for high-voltage automotive high-voltage wires are selected according to different customer requirements, such as ISO 6722. GB/T 1037, etc., performance requirements such as flame retardant, tear resistance, oil resistance, high temperature resistance, high speed extrusion and other technical characteristics have become the focus and trend of such product development.
  • the materials of the high-voltage cable in the vehicle mainly include radiation cross-linked polyolefin (XLPO) and thermoplastic elastomer (TPE).
  • the irradiated cross-linked polyolefin material Compared with thermoplastic elastomer, the irradiated cross-linked polyolefin material has better crack resistance and is more affected. Recognition by market customers. However, because of its excellent flexibility, its flame retardant performance is poor, and generally it can only be burned through a single root.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a high flame retardant composite material for a high-voltage line of a new energy vehicle and a preparation method thereof.
  • the present invention adopts the following technical solutions:
  • a high-flame-retardant composite material for high-voltage lines for new energy vehicles the raw material formula of the high flame-retardant composite material comprises:
  • the polyethylene resin is a mixture of bimodal high-density polyethylene having a melt index of 1 g/10 min or less and a high-density polyethylene having a melt index of 10 g/10 min or more;
  • the polyolefin elastomer is an ethylene-octylene copolymer
  • the composite flame retardant must contain decabromodiphenylethane and antimony trioxide.
  • the mass ratio of the bimodal high-density polyethylene having a melt index of 1 g/10 min or less and the high-density polyethylene having a melt index of 10 g/10 min or more is 1:1 to 3.
  • the use of bimodal polyethylene and high melt index high density polyethylene ensures good oil resistance and extrusion processability.
  • the mass ratio of the bimodal high-density polyethylene having a melt index of 1 g/10 min or less and the high-density polyethylene having a melt index of 10 g/10 min or more is 1:2.
  • the polyolefin elastomer has a hardness of 50 to 90 ⁇ .
  • the polyolefin elastomer is compounded from an ethylene-octylene copolymer of 50-65A and 80-90A to impart good physical properties and excellent flexibility to the material.
  • the ethylene-vinyl acetate copolymer is a mixture of an ethylene-vinyl acetate copolymer having a VA content of 15 to 28% and an ethylene-vinyl acetate copolymer having a VA content of 35 to 50% by mass ratio of 1:1.5 to 2.5. .
  • the chlorinated polyethylene is a chlorinated polyethylene having a chlorine content of 35% or less, which imparts good compatibility, workability and flame retardancy to the material.
  • the composite flame retardant is a mixture of decabromodiphenylethane and antimony trioxide or the composite flame retardant is decabromodiphenylethane, antimony trioxide and magnesium hydroxide.
  • the mixture has a mass ratio of decabromodiphenylethane to antimony trioxide of from 2 to 4:1.
  • the mass ratio of the decabromodiphenylethane to antimony trioxide is 3:1.
  • the wear-resistant flame retardant synergist is a mixture of polytetrafluoroethylene, silica, and talc in a mass ratio of 0.1 to 0.5:2 to 4:5 to 10.
  • the polytetrafluoroethylene is a polytetrafluoroethylene powder.
  • the mass ratio of the polytetrafluoroethylene, silica, and talc is 0.3:3:6.
  • the antioxidant is a mixture of a plurality selected from the group consisting of an antioxidant 1010, an antioxidant 168, an antioxidant DLTP, an antioxidant 1035, and an antioxidant 1024, and the antioxidant must be Contains antioxidant 1035 and antioxidant 1024.
  • the lubricant is a mixture of a silicone masterbatch, a stearate, and a polyethylene wax.
  • the crosslinking sensitizer is TAIC, and if TAIC powder is selected, the effective content is 70% or more.
  • the raw material of the formula of the invention is selected from the blending of POE and EVA, and the different hardness POE is mixed with different VA content EVA to form a bridge between each other to satisfy the physical and mechanical properties and flexibility of the material.
  • Another technical solution adopted by the present invention is: a method for preparing a high-flame-retardant composite material for a high-voltage line of the above-mentioned new energy vehicle, the preparation method comprising the steps of: copolymerizing a polyethylene resin, a polyolefin elastomer, and ethylene-vinyl acetate , chlorinated polyethylene, composite flame retardant, wear-resistant flame retardant synergist, antioxidant, lubricant, cross-linking sensitizer are added to the kneader according to the formula, and the mixture is stirred or twinned.
  • Machine-mixed extrusion granulation to produce high flame-retardant composite materials wherein the twin-screw extrusion process: feed section, melting section, and die temperature are 120 ° C ⁇ 130 ° C, 150 ° C ⁇ 165 ° C, 165 ° C ⁇ 175 ° C, the mixing temperature is 150 ° C ⁇ 160 ° C.
  • the present invention has the following advantages:
  • the invention adds a polyolefin elastomer and an ethylene-vinyl acetate copolymer by improving the formulation, such as using a mixture of bimodal polyethylene and high melt index high density polyethylene as a polyethylene resin and chlorinated polyethylene as a modifier.
  • Auxiliary addition of composite flame retardant, flame retardant synergist, antioxidant and the like, so that the composite material of the invention has better flame retardant performance can be burned by UL94 V0 grade, and retains the softness of high-voltage wire of new energy vehicle. High temperature resistance, oil resistance, flame retardancy, etc., and excellent extrusion process performance.
  • the raw materials used in the following examples are all commercially available standard industrial products.
  • This embodiment provides a high-flame-retardant composite material for high-voltage lines of new energy vehicles.
  • the raw materials and dosages used are shown in Table 1, wherein:
  • Polyethylene resin Bimodal high-density polyethylene with melt index of 0.3g/10min (from Borealis, grade FB2230) and high-density polyethylene with melt index of 12g/10min (from petrochemical company, grade 2909) ) consists of a mass ratio of 1:3.
  • Polyolefin elastomer An ethylene-octylene copolymer having a hardness of 65 A and an ethylene-octylene copolymer having a hardness of 87 A were composed at a mass ratio of 1:1.
  • Ethylene-vinyl acetate copolymer composed of EVA having a VA content of 18% and EVA having a VA content of 40% in a mass ratio of 1:2.
  • Chlorinated polyethylene Chlorinated polyethylene with a chlorine content of 30%.
  • Composite flame retardant composed of decabromodiphenylethane and antimony trioxide in a mass ratio of 3:1.
  • Wear-resistant flame retardant synergist consists of polytetrafluoroethylene powder, silica, and talc in a mass ratio of 0.1:4:9.
  • Antioxidant consists of antioxidant 1035 and antioxidant 1024 in a mass ratio of 4:1.
  • Lubricant consists of a silicone masterbatch (from Jiahua Company, grade 300), magnesium stearate, and polyethylene wax in a mass ratio of 2:1:0.5.
  • Cross-linking sensitizer TAIC powder is selected, the effective content is 70%.
  • the preparation method of the high flame retardant composite material is as follows: polyethylene resin, polyolefin elastomer, ethylene-vinyl acetate copolymer, chlorinated polyethylene, composite flame retardant, wear-resistant flame retardant synergist, antioxidant, lubrication
  • the agent and the crosslinking sensitizer are added to the kneader according to the formula and stirred uniformly, and then the mixture is subjected to twin-screw extrusion granulation to obtain a high flame-retardant composite material, wherein the extrusion process: the feed section, the melting section, and the die
  • the temperature is in the order of 120 ° C to 130 ° C, 150 ° C to 165 ° C, and 165 ° C to 175 ° C.
  • the present embodiment provides a high-flame-retardant composite material for a high-voltage line of a new energy vehicle.
  • the raw materials and amounts used are shown in Table 1.
  • the materials other than the following are the same as in the first embodiment.
  • Polyethylene resin composed of a bimodal high-density polyethylene having a melt index of 0.3 g/10 min and a high-density polyethylene having a melt index of 20 g/10 min in a mass ratio of 1:2.
  • Polyolefin elastomer composed of an ethylene-octylene copolymer having a hardness of 60 A and an ethylene-octylene copolymer having a hardness of 82 A in a mass ratio of 5:3.
  • Ethylene-vinyl acetate copolymer composed of EVA having a VA content of 28% and EVA having a VA content of 40% in a mass ratio of 1:2.5.
  • Chlorinated polyethylene Chlorinated polyethylene with a chlorine content of 25%.
  • Composite flame retardant composed of decabromodiphenylethane, antimony trioxide and magnesium hydroxide in a mass ratio of 3:1:1.
  • Antioxidant consists of antioxidant 1035, antioxidant 1024, and antioxidant 168 in a mass ratio of 2:1:1.
  • the preparation process of the high flame retardant composite material is the same as in Example 1.
  • the present embodiment provides a high-flame-retardant composite material for a high-voltage line of a new energy vehicle.
  • the raw materials and amounts used are shown in Table 1.
  • the materials other than the following are the same as in the second embodiment.
  • Ethylene-vinyl acetate copolymer composed of EVA having a VA content of 28% and EVA having a VA content of 50% in a mass ratio of 1:2.
  • Chlorinated polyethylene Chlorinated polyethylene with a chlorine content of 35%.
  • Wear-resistant flame retardant synergist consists of polytetrafluoroethylene powder, silica, and talc in a mass ratio of 0.2:2.5:6.
  • Antioxidant consists of antioxidant 1035, antioxidant 1024, antioxidant 1010, and antioxidant DLTP in a mass ratio of 2:1:1 to 0.5.
  • the preparation process of the high flame retardant composite material is the same as in Example 2.
  • the present embodiment provides a high-flame-retardant composite material for a high-voltage line of a new energy vehicle.
  • the raw materials and amounts used are shown in Table 1.
  • the materials other than the following are the same as in the second embodiment.
  • Polyethylene resin composed of a bimodal high-density polyethylene having a melt index of 0.8 g/10 min and a high-density polyethylene having a melt index of 15 g/10 min in a mass ratio of 1:3.
  • the preparation process of the high flame retardant composite material is the same as in Example 2.
  • the present comparative example provides a composite material, and the raw materials and amounts used are shown in Table 1.
  • the materials other than the following are the same as in Example 2.
  • the flame retardant is magnesium hydroxide.
  • the preparation process of the comparative composite was the same as in Example 2.
  • the present comparative example provides a composite material, and the raw materials and amounts used are shown in Table 1.
  • the materials other than the following are the same as in Example 2.
  • Polyethylene resin Linear low density polyethylene having a melt index of 2 g/10 min was used.
  • the preparation process of the comparative composite was the same as in Example 1.

Abstract

The present invention relates to a high flame retardancy composite material for a high voltage cable of a new energy automobile, the high flame retardancy composite material comprising the following raw materials in parts by weight: 5-25 parts of polyethylene resin; 25-50 parts of polyolefin elastomer; 30-50 parts of ethylene-vinyl acetate copolymer; 8-20 parts of chlorinated polyethylene; 30-60 parts of composite flame retardant; 0.2-15 parts of wear-resistant flame retardant synergist; 0.7-2.5 parts of antioxidant; 1-2 parts of lubricant; and 1.5-3 parts of cross-linking sensitising agent. The formulation of the present invention is improved, for example by using a mixture of bimodal polyethylene and high melt index high density polyethylene as a polyethylene resin and chlorinated polyethylene as a modifier, adding polyolefin elastomer and ethylene-vinyl acetate copolymer, and additionally adding a composite flame retardant, a flame retardant synergist, and an antioxidant, such that the composite material of the present invention has better flame retardancy properties and burns at a UL94 V0 grade whilst retaining the flexibility, high temperature resistance, oil resistance, and flame retardancy of high voltage cable material for use in a new energy automobile, and having excellent extrusion processing properties.

Description

一种新能源汽车高压线用高阻燃复合材料及其制备方法High-flame flame-retardant composite material for high-voltage line of new energy automobile and preparation method thereof 技术领域Technical field
本发明涉及一种新能源汽车高压线用高阻燃复合材料及其制备方法。The invention relates to a high flame-retardant composite material for high-voltage lines of new energy vehicles and a preparation method thereof.
背景技术Background technique
随着我国新能源汽车产销的高速发展，与汽车线束相关的高分子复合材料系列产品的需求也越来越迫切，新能源汽车高压线用材料根据不同客户需求选择不同的使用标准，如ISO 6722，GB/T 1037等，性能要求如阻燃、抗撕、耐油、耐高温，高速挤出等技术特点成为该类产品开发的焦点和趋势。目前，车内高压电缆的材料主要有辐照交联聚烯烃(XLPO)和热塑性弹性体(TPE)，对比热塑性弹性体，辐照交联聚烯烃材料具有更好的抗开裂性能，也更受市场客户的认可。但因其需具备优异的柔韧性，其阻燃性能较差，一般只能过单根燃烧。With the rapid development of the production and sales of new energy vehicles in China, the demand for polymer composite materials related to automotive wiring harnesses is becoming more and more urgent. The materials for high-voltage automotive high-voltage wires are selected according to different customer requirements, such as ISO 6722. GB/T 1037, etc., performance requirements such as flame retardant, tear resistance, oil resistance, high temperature resistance, high speed extrusion and other technical characteristics have become the focus and trend of such product development. At present, the materials of the high-voltage cable in the vehicle mainly include radiation cross-linked polyolefin (XLPO) and thermoplastic elastomer (TPE). Compared with thermoplastic elastomer, the irradiated cross-linked polyolefin material has better crack resistance and is more affected. Recognition by market customers. However, because of its excellent flexibility, its flame retardant performance is poor, and generally it can only be burned through a single root.
现有技术中有通过在配方中大量填充氢氧化镁或氢氧化铝作为阻燃剂的电缆料，产品具有较好的阻燃性。公开号为CN 104262883A的中国专利公开了一种在室温下可交联的低烟无卤阻燃硅烷交联电缆料，该电缆料的原料配方包括聚烯烃弹性体30～50份、线性低密度聚乙烯树脂10～30份、乙烯-醋酸乙烯共聚树脂15～30份、功能化聚烯烃树脂5～15份、阻燃剂120～160份、不饱和硅烷1.2～3份、接枝引发剂0.06～0.3份、抗氧剂0.5～2份、加工助剂1.5～6份，该电缆料中添加了大量阻燃剂，使产品具有较好的阻燃性，但大量阻燃剂的添加会影响其他性能，且该电缆料的耐油性、柔软性等能满足高压电缆线使用的性能不能得到保证。In the prior art, there is a cable material which is filled with magnesium hydroxide or aluminum hydroxide as a flame retardant in a large amount in the formulation, and the product has good flame retardancy. Chinese Patent Publication No. CN 104262883A discloses a low-smoke halogen-free flame-retardant silane crosslinked cable material which can be crosslinked at room temperature, and the raw material formulation of the cable material comprises 30-50 parts of polyolefin elastomer, linear low density. 10 to 30 parts of polyethylene resin, 15 to 30 parts of ethylene-vinyl acetate copolymer resin, 5 to 15 parts of functionalized polyolefin resin, 120 to 160 parts of flame retardant, 1.2 to 3 parts of unsaturated silane, and 0.06 of graft initiator ～0.3 parts, 0.5-2 parts of antioxidant, 1.5-6 parts of processing aid, a large amount of flame retardant is added to the cable material to make the product have good flame retardancy, but the addition of a large amount of flame retardant will affect Other properties, and the oil resistance and flexibility of the cable material can satisfy the performance of the high-voltage cable.
发明内容Summary of the invention
本发明所要解决的技术问题是克服现有技术的不足，提供一种新能源汽车高压线用高阻燃复合材料及其制备方法。The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a high flame retardant composite material for a high-voltage line of a new energy vehicle and a preparation method thereof.
为解决以上技术问题，本发明采用如下技术方案：In order to solve the above technical problems, the present invention adopts the following technical solutions:
一种新能源汽车高压线用高阻燃复合材料，按重量份计，所述高阻燃复合材料的原料配方包括：A high-flame-retardant composite material for high-voltage lines for new energy vehicles, the raw material formula of the high flame-retardant composite material comprises:
Figure PCTCN2018078163-appb-000001
Figure PCTCN2018078163-appb-000001
Figure PCTCN2018078163-appb-000002
Figure PCTCN2018078163-appb-000002
其中，among them,
所述聚乙烯树脂采用熔融指数小于等于1g/10min的双峰高密度聚乙烯和熔融指数大于等于10g/10min高密度聚乙烯的混合物；The polyethylene resin is a mixture of bimodal high-density polyethylene having a melt index of 1 g/10 min or less and a high-density polyethylene having a melt index of 10 g/10 min or more;
所述聚烯烃弹性体为乙烯-辛稀共聚物；The polyolefin elastomer is an ethylene-octylene copolymer;
所述复合阻燃剂中必须含有十溴二苯乙烷和三氧化二锑。The composite flame retardant must contain decabromodiphenylethane and antimony trioxide.
优选地，所述熔融指数小于等于1g/10min的双峰高密度聚乙烯和熔融指数大于等于10g/10min的高密度聚乙烯的质量比为1∶1～3。采用双峰聚乙烯和高熔融指数的高密度聚乙烯可以确保材料具有良好的耐油性能以及挤出加工性能。Preferably, the mass ratio of the bimodal high-density polyethylene having a melt index of 1 g/10 min or less and the high-density polyethylene having a melt index of 10 g/10 min or more is 1:1 to 3. The use of bimodal polyethylene and high melt index high density polyethylene ensures good oil resistance and extrusion processability.
更优选地，所述熔融指数小于等于1g/10min的双峰高密度聚乙烯和熔融指数大于等于10g/10min的高密度聚乙烯的质量比为1∶2。More preferably, the mass ratio of the bimodal high-density polyethylene having a melt index of 1 g/10 min or less and the high-density polyethylene having a melt index of 10 g/10 min or more is 1:2.
进一步地，所述聚烯烃弹性体的硬度为50～90A。优选地，所述聚烯烃弹性体由50-65A与80-90A的乙烯-辛稀共聚物复配，赋予材料良好的物理性能和优异的柔韧性。Further, the polyolefin elastomer has a hardness of 50 to 90 Å. Preferably, the polyolefin elastomer is compounded from an ethylene-octylene copolymer of 50-65A and 80-90A to impart good physical properties and excellent flexibility to the material.
进一步地，所述乙烯-醋酸乙烯共聚物为VA含量15～28％的乙烯-醋酸乙烯共聚物和VA含量35～50％的乙烯-醋酸乙烯共聚物按质量比1∶1.5～2.5组成的混合物。Further, the ethylene-vinyl acetate copolymer is a mixture of an ethylene-vinyl acetate copolymer having a VA content of 15 to 28% and an ethylene-vinyl acetate copolymer having a VA content of 35 to 50% by mass ratio of 1:1.5 to 2.5. .
进一步地，所述氯化聚乙烯为氯含量小于等于35％的氯化聚乙烯，能够赋予材料良好的相容性，加工性和阻燃性。Further, the chlorinated polyethylene is a chlorinated polyethylene having a chlorine content of 35% or less, which imparts good compatibility, workability and flame retardancy to the material.
进一步地，所述复合阻燃剂为十溴二苯乙烷和三氧化二锑二者的混合物或所述复合阻燃剂为十溴二苯乙烷、三氧化二锑和氢氧化镁三者的混合物，所述十溴二苯乙烷和三氧化二锑的质量比为2～4∶1。优选地，所述十溴二苯乙烷和三氧化二锑的质量比为3∶1。Further, the composite flame retardant is a mixture of decabromodiphenylethane and antimony trioxide or the composite flame retardant is decabromodiphenylethane, antimony trioxide and magnesium hydroxide. The mixture has a mass ratio of decabromodiphenylethane to antimony trioxide of from 2 to 4:1. Preferably, the mass ratio of the decabromodiphenylethane to antimony trioxide is 3:1.
进一步地，所述耐磨阻燃协效剂为聚四氟乙烯、二氧化硅、滑石粉按质量比0.1～0.5∶2～4∶5～10组成的混合物。所述聚四氟乙烯为聚四氟乙烯粉末。优 选地，所述聚四氟乙烯、二氧化硅、滑石粉的质量比为0.3∶3∶6。Further, the wear-resistant flame retardant synergist is a mixture of polytetrafluoroethylene, silica, and talc in a mass ratio of 0.1 to 0.5:2 to 4:5 to 10. The polytetrafluoroethylene is a polytetrafluoroethylene powder. Preferably, the mass ratio of the polytetrafluoroethylene, silica, and talc is 0.3:3:6.
进一步地，所述抗氧剂为选自抗氧剂1010、抗氧剂168、抗氧剂DLTP、抗氧剂1035及抗氧剂1024中的的多种的混合物，所述抗氧剂中必须含有抗氧剂1035和抗氧剂1024。Further, the antioxidant is a mixture of a plurality selected from the group consisting of an antioxidant 1010, an antioxidant 168, an antioxidant DLTP, an antioxidant 1035, and an antioxidant 1024, and the antioxidant must be Contains antioxidant 1035 and antioxidant 1024.
进一步地，所述润滑剂为硅氧烷母粒、硬脂酸盐、聚乙烯蜡的混合物。Further, the lubricant is a mixture of a silicone masterbatch, a stearate, and a polyethylene wax.
进一步地，所述交联敏化剂为TAIC，如选用TAIC粉末，有效含量大于等于70％。Further, the crosslinking sensitizer is TAIC, and if TAIC powder is selected, the effective content is 70% or more.
本发明配方的原料，选择POE和EVA共混，且不同硬度POE与不同VA含量EVA混搭，形成彼此之间的桥梁，满足材料的物理机械性能和柔韧性。The raw material of the formula of the invention is selected from the blending of POE and EVA, and the different hardness POE is mixed with different VA content EVA to form a bridge between each other to satisfy the physical and mechanical properties and flexibility of the material.
本发明中，全部所述的原料均可以通过商购和/或采取已知的手段来制备得到，没有加以特别说明时，均满足标准化工产品要求。In the present invention, all of the above-mentioned raw materials can be prepared by commercially available and/or by known means, and all of them meet the requirements of standard chemical products unless otherwise specified.
本发明采取的又一技术方案是：一种上述新能源汽车高压线用高阻燃复合材料的制备方法，所述制备方法包括以下步骤：将聚乙烯树脂、聚烯烃弹性体、乙烯-醋酸乙烯共聚物、氯化聚乙烯、复合阻燃剂、耐磨阻燃协效剂、抗氧剂、润滑剂、交联敏化剂按配方加入捏合机中搅拌均匀，然后将混合物经双螺杆或密炼机混炼挤出造粒，制得高阻燃复合材料，其中，双螺杆挤出工艺：进料段、熔融段、模头温度依次为120℃～130℃、150℃～165℃、165℃～175℃，密炼温度150℃～160℃。Another technical solution adopted by the present invention is: a method for preparing a high-flame-retardant composite material for a high-voltage line of the above-mentioned new energy vehicle, the preparation method comprising the steps of: copolymerizing a polyethylene resin, a polyolefin elastomer, and ethylene-vinyl acetate , chlorinated polyethylene, composite flame retardant, wear-resistant flame retardant synergist, antioxidant, lubricant, cross-linking sensitizer are added to the kneader according to the formula, and the mixture is stirred or twinned. Machine-mixed extrusion granulation to produce high flame-retardant composite materials, wherein the twin-screw extrusion process: feed section, melting section, and die temperature are 120 ° C ~ 130 ° C, 150 ° C ~ 165 ° C, 165 ° C ~ 175 ° C, the mixing temperature is 150 ° C ~ 160 ° C.
由以上技术方案的实施，本发明与现有技术相比具有如下优点：Compared with the prior art, the present invention has the following advantages:
本发明通过改进配方，如采用双峰聚乙烯和高熔融指数高密度聚乙烯的混合物作为聚乙烯树脂、氯化聚乙烯作为改性剂，添加聚烯烃弹性体和乙烯-醋酸乙烯共聚物，同时辅助添加复合阻燃剂、阻燃协效剂、抗氧剂等物质，使得本发明复合材料具有更优良的阻燃性能，可通过UL94 V0等级燃烧，同时保留了新能源汽车高压线料的柔软性、耐高温性、耐油性、阻燃性等特点，且挤出工艺性能优异。The invention adds a polyolefin elastomer and an ethylene-vinyl acetate copolymer by improving the formulation, such as using a mixture of bimodal polyethylene and high melt index high density polyethylene as a polyethylene resin and chlorinated polyethylene as a modifier. Auxiliary addition of composite flame retardant, flame retardant synergist, antioxidant and the like, so that the composite material of the invention has better flame retardant performance, can be burned by UL94 V0 grade, and retains the softness of high-voltage wire of new energy vehicle. High temperature resistance, oil resistance, flame retardancy, etc., and excellent extrusion process performance.
具体实施方式Detailed ways
下面结合具体实施例对本发明作进一步详细说明。The present invention will be further described in detail below in conjunction with specific embodiments.
以下实施例中采用的原料均为商购获得的标准工业品。The raw materials used in the following examples are all commercially available standard industrial products.
实施例1Example 1
本实施例提供一种新能源汽车高压线用高阻燃复合材料，采用的原料及用量参见表1，其中：This embodiment provides a high-flame-retardant composite material for high-voltage lines of new energy vehicles. The raw materials and dosages used are shown in Table 1, wherein:
聚乙烯树脂：由熔融指数为0.3g/10min的双峰高密度聚乙烯(来源于北欧化工，牌号为FB2230)和熔融指数为12g/10min的高密度聚乙烯(来源于石化公司，牌号为2909)按质量比1∶3组成。Polyethylene resin: Bimodal high-density polyethylene with melt index of 0.3g/10min (from Borealis, grade FB2230) and high-density polyethylene with melt index of 12g/10min (from petrochemical company, grade 2909) ) consists of a mass ratio of 1:3.
聚烯烃弹性体：由硬度65A的乙烯-辛稀共聚物和硬度87A的乙烯-辛稀共聚物按质量比1∶1组成。Polyolefin elastomer: An ethylene-octylene copolymer having a hardness of 65 A and an ethylene-octylene copolymer having a hardness of 87 A were composed at a mass ratio of 1:1.
乙烯-醋酸乙烯共聚物：由VA含量18％的EVA和VA含量40％的EVA按质量比1∶2组成。Ethylene-vinyl acetate copolymer: composed of EVA having a VA content of 18% and EVA having a VA content of 40% in a mass ratio of 1:2.
氯化聚乙烯：采用氯含量30％的氯化聚乙烯。Chlorinated polyethylene: Chlorinated polyethylene with a chlorine content of 30%.
复合阻燃剂：由十溴二苯乙烷和三氧化二锑按质量比为3∶1组成。Composite flame retardant: composed of decabromodiphenylethane and antimony trioxide in a mass ratio of 3:1.
耐磨阻燃协效剂：由聚四氟乙烯粉末、二氧化硅、滑石粉按质量比为0.1∶4∶9组成。Wear-resistant flame retardant synergist: consists of polytetrafluoroethylene powder, silica, and talc in a mass ratio of 0.1:4:9.
抗氧剂：由抗氧剂1035、抗氧剂1024按质量比4∶1组成。Antioxidant: consists of antioxidant 1035 and antioxidant 1024 in a mass ratio of 4:1.
润滑剂：由硅氧烷母粒(来源于佳华公司，牌号为300)、硬脂酸镁、聚乙烯蜡按质量比2∶1∶0.5组成。Lubricant: consists of a silicone masterbatch (from Jiahua Company, grade 300), magnesium stearate, and polyethylene wax in a mass ratio of 2:1:0.5.
交联敏化剂：选用TAIC粉末，有效含量70％。Cross-linking sensitizer: TAIC powder is selected, the effective content is 70%.
高阻燃复合材料的制备方法如下：将聚乙烯树脂、聚烯烃弹性体、乙烯-醋酸乙烯共聚物、氯化聚乙烯、复合阻燃剂、耐磨阻燃协效剂、抗氧剂、润滑剂、交联敏化剂按配方加入捏合机中搅拌均匀，然后将混合物经双螺杆挤出造粒，制得高阻燃复合材料，其中，挤出工艺：进料段、熔融段、模头温度依次为120℃～130℃、150℃～165℃、165℃～175℃。The preparation method of the high flame retardant composite material is as follows: polyethylene resin, polyolefin elastomer, ethylene-vinyl acetate copolymer, chlorinated polyethylene, composite flame retardant, wear-resistant flame retardant synergist, antioxidant, lubrication The agent and the crosslinking sensitizer are added to the kneader according to the formula and stirred uniformly, and then the mixture is subjected to twin-screw extrusion granulation to obtain a high flame-retardant composite material, wherein the extrusion process: the feed section, the melting section, and the die The temperature is in the order of 120 ° C to 130 ° C, 150 ° C to 165 ° C, and 165 ° C to 175 ° C.
实施例2Example 2
本实施例提供一种新能源汽车高压线用高阻燃复合材料，采用的原料及用量参见表1，下列之外的原料均与实施例1相同。The present embodiment provides a high-flame-retardant composite material for a high-voltage line of a new energy vehicle. The raw materials and amounts used are shown in Table 1. The materials other than the following are the same as in the first embodiment.
聚乙烯树脂：由熔融指数为0.3g/10min的双峰高密度聚乙烯和熔融指数为20g/10min的高密度聚乙烯按质量比1∶2组成。Polyethylene resin: composed of a bimodal high-density polyethylene having a melt index of 0.3 g/10 min and a high-density polyethylene having a melt index of 20 g/10 min in a mass ratio of 1:2.
聚烯烃弹性体：由硬度60A的乙烯-辛稀共聚物和硬度82A的乙烯-辛稀共聚物按质量比5∶3组成。Polyolefin elastomer: composed of an ethylene-octylene copolymer having a hardness of 60 A and an ethylene-octylene copolymer having a hardness of 82 A in a mass ratio of 5:3.
乙烯-醋酸乙烯共聚物：由VA含量28％的EVA和VA含量40％的EVA按质量比1∶2.5组成。Ethylene-vinyl acetate copolymer: composed of EVA having a VA content of 28% and EVA having a VA content of 40% in a mass ratio of 1:2.5.
氯化聚乙烯：采用氯含量25％的氯化聚乙烯。Chlorinated polyethylene: Chlorinated polyethylene with a chlorine content of 25%.
复合阻燃剂：由十溴二苯乙烷、三氧化二锑和氢氧化镁按质量比为3∶1∶ 1组成。Composite flame retardant: composed of decabromodiphenylethane, antimony trioxide and magnesium hydroxide in a mass ratio of 3:1:1.
抗氧剂：由抗氧剂1035、抗氧剂1024、抗氧剂168按质量比2∶1∶1组成。Antioxidant: consists of antioxidant 1035, antioxidant 1024, and antioxidant 168 in a mass ratio of 2:1:1.
高阻燃复合材料的制备过程同实施例1。The preparation process of the high flame retardant composite material is the same as in Example 1.
实施例3Example 3
本实施例提供一种新能源汽车高压线用高阻燃复合材料，采用的原料及用量参见表1，下列之外的原料均与实施例2相同。The present embodiment provides a high-flame-retardant composite material for a high-voltage line of a new energy vehicle. The raw materials and amounts used are shown in Table 1. The materials other than the following are the same as in the second embodiment.
乙烯-醋酸乙烯共聚物：由VA含量28％的EVA和VA含量50％的EVA按质量比1∶2组成。Ethylene-vinyl acetate copolymer: composed of EVA having a VA content of 28% and EVA having a VA content of 50% in a mass ratio of 1:2.
氯化聚乙烯：采用氯含量35％的氯化聚乙烯。Chlorinated polyethylene: Chlorinated polyethylene with a chlorine content of 35%.
耐磨阻燃协效剂：由聚四氟乙烯粉末、二氧化硅、滑石粉按质量比为0.2∶2.5∶6组成。Wear-resistant flame retardant synergist: consists of polytetrafluoroethylene powder, silica, and talc in a mass ratio of 0.2:2.5:6.
抗氧剂：由抗氧剂1035、抗氧剂1024、抗氧剂1010、抗氧剂DLTP按质量比2∶1∶1∶0.5组成。Antioxidant: consists of antioxidant 1035, antioxidant 1024, antioxidant 1010, and antioxidant DLTP in a mass ratio of 2:1:1 to 0.5.
高阻燃复合材料的制备过程同实施例2。The preparation process of the high flame retardant composite material is the same as in Example 2.
实施例4Example 4
本实施例提供一种新能源汽车高压线用高阻燃复合材料，采用的原料及用量参见表1，下列之外的原料均与实施例2相同。The present embodiment provides a high-flame-retardant composite material for a high-voltage line of a new energy vehicle. The raw materials and amounts used are shown in Table 1. The materials other than the following are the same as in the second embodiment.
聚乙烯树脂：由熔融指数为0.8g/10min的双峰高密度聚乙烯和熔融指数为15g/10min的高密度聚乙烯按质量比1∶3组成。Polyethylene resin: composed of a bimodal high-density polyethylene having a melt index of 0.8 g/10 min and a high-density polyethylene having a melt index of 15 g/10 min in a mass ratio of 1:3.
高阻燃复合材料的制备过程同实施例2。The preparation process of the high flame retardant composite material is the same as in Example 2.
对比例1Comparative example 1
本对比例提供一种复合材料，采用的原料及用量参见表1，下列之外的原料均与实施例2相同。The present comparative example provides a composite material, and the raw materials and amounts used are shown in Table 1. The materials other than the following are the same as in Example 2.
阻燃剂采用氢氧化镁。The flame retardant is magnesium hydroxide.
本对比的复合材料的制备过程同实施例2。The preparation process of the comparative composite was the same as in Example 2.
对比例2Comparative example 2
本对比例提供一种复合材料，采用的原料及用量参见表1，下列之外的原料均与实施例2相同。The present comparative example provides a composite material, and the raw materials and amounts used are shown in Table 1. The materials other than the following are the same as in Example 2.
聚乙烯树脂：采用熔融指数2g/10min的线性低密度聚乙烯。Polyethylene resin: Linear low density polyethylene having a melt index of 2 g/10 min was used.
不加氯化聚乙烯。No chlorinated polyethylene is added.
本对比的复合材料的制备过程同实施例1。The preparation process of the comparative composite was the same as in Example 1.
表1实施例1～4及对比例1～2的原料组成(份数)Table 1 Raw material composition (parts) of Examples 1 to 4 and Comparative Examples 1 and 2
Figure PCTCN2018078163-appb-000003
Figure PCTCN2018078163-appb-000003
将实施例1～4及对比例1～2的复合材料按标准制样，并对各项性能进行检测，结果参见表2。为便于比较，还在表2中列出了该材料企业标准所规定的指标值。The composite materials of Examples 1 to 4 and Comparative Examples 1 and 2 were prepared according to the standard, and the properties were examined. The results are shown in Table 2. For comparison purposes, the indicator values specified in the material enterprise standard are also listed in Table 2.
表2实施例1～4及对比例1～2的复合材料的性能Table 2 Properties of composite materials of Examples 1 to 4 and Comparative Examples 1 and 2
Figure PCTCN2018078163-appb-000004
Figure PCTCN2018078163-appb-000004
Figure PCTCN2018078163-appb-000005
Figure PCTCN2018078163-appb-000005
以上对本发明做了详尽的描述，其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，且本发明不限于上述的实施例，凡根据本发明的精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围。The present invention has been described in detail above, and is intended to be understood by those skilled in the art of the invention, and is not intended to limit the scope of the invention. Equivalent variations or modifications made in accordance with the spirit of the invention are intended to be included within the scope of the invention.

Claims (11)

  1. 一种新能源汽车高压线用高阻燃复合材料，其特征在于，按重量份计，所述高阻燃复合材料的原料配方包括：A high flame retardant composite material for a high-voltage line of a new energy vehicle, characterized in that the raw material formula of the high flame-retardant composite material comprises, by weight:
    Figure PCTCN2018078163-appb-100001
    Figure PCTCN2018078163-appb-100001
    其中，among them,
    所述聚乙烯树脂采用熔融指数小于等于1g/10min的双峰高密度聚乙烯和熔融指数大于等于10g/10min的高密度聚乙烯的混合物；The polyethylene resin is a mixture of bimodal high-density polyethylene having a melt index of 1 g/10 min or less and high-density polyethylene having a melt index of 10 g/10 min or more;
    所述聚烯烃弹性体为乙烯-辛稀共聚物；The polyolefin elastomer is an ethylene-octylene copolymer;
    所述复合阻燃剂含有十溴二苯乙烷和三氧化二锑。The composite flame retardant contains decabromodiphenylethane and antimony trioxide.
  2. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述熔融指数小于等于1g/10min的双峰高密度聚乙烯和熔融指数大于等于10g/10min的高密度聚乙烯的质量比为1∶1～3。The high-flame-retardant composite material for a high-voltage line for a new energy vehicle according to claim 1, wherein the bimodal high-density polyethylene having a melt index of 1 g/10 min or less and a high-density polymer having a melt index of 10 g/10 min or more are obtained. The mass ratio of ethylene is 1:1 to 3.
  3. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述聚烯烃弹性体的硬度为50～90A。The high flame-retardant composite material for a high-voltage line for a new energy vehicle according to claim 1, wherein the polyolefin elastomer has a hardness of 50 to 90 Å.
  4. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述乙烯-醋酸乙烯共聚物为VA含量15～28％的乙烯-醋酸乙烯共聚物和VA含量35～50％的乙烯-醋酸乙烯共聚物按质量比1∶1.5～2.5组成的混合物。The high flame retardant composite material for a high-voltage electric line for a new energy source according to claim 1, wherein the ethylene-vinyl acetate copolymer is an ethylene-vinyl acetate copolymer having a VA content of 15 to 28% and a VA content of 35 to 50. A mixture of % ethylene-vinyl acetate copolymer in a mass ratio of 1:1.5 to 2.5.
  5. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述氯化聚乙烯为氯含量小于等于35％的氯化聚乙烯。The high flame-retardant composite material for a high-voltage line for a new energy vehicle according to claim 1, wherein the chlorinated polyethylene is a chlorinated polyethylene having a chlorine content of 35% or less.
  6. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述复合阻燃剂为十溴二苯乙烷和三氧化二锑二者的混合物或所述复合阻燃剂为十溴二苯乙烷、三氧化二锑和氢氧化镁三者的混合物，所述十溴二苯乙烷和三氧化二锑的质量比为2～4∶1。The high flame retardant composite material for a high-voltage line for a new energy vehicle according to claim 1, wherein the composite flame retardant is a mixture of decabromodiphenylethane and antimony trioxide or the composite flame retardant The agent is a mixture of decabromodiphenylethane, antimony trioxide and magnesium hydroxide, and the mass ratio of the decabromodiphenylethane to antimony trioxide is from 2 to 4:1.
  7. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述耐磨阻燃协效剂为聚四氟乙烯、二氧化硅、滑石粉按质量比0.1～0.5∶2～4∶5～10组成的混合物。The high-flame-retardant composite material for a high-voltage line of a new energy vehicle according to claim 1, wherein the wear-resistant flame retardant synergist is a polytetrafluoroethylene, silica, and talc powder in a mass ratio of 0.1 to 0.5: A mixture of 2 to 4:5 to 10 components.
  8. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述抗氧剂为选自抗氧剂1010、抗氧剂168、抗氧剂DLTP、抗氧剂1035及抗氧剂1024中的多种的混合物，所述抗氧剂中必须含有抗氧剂1035和抗氧剂1024。The high-flame-retardant composite material for a high-voltage line for a new energy vehicle according to claim 1, wherein the antioxidant is selected from the group consisting of an antioxidant 1010, an antioxidant 168, an antioxidant DLTP, and an antioxidant 1035. A mixture of a plurality of antioxidants 1024, which must contain an antioxidant 1035 and an antioxidant 1024.
  9. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述润滑剂为硅氧烷母粒、硬脂酸盐、聚乙烯蜡的混合物。The high flame retardant composite material for a high-voltage electric vehicle of a new energy source according to claim 1, wherein the lubricant is a mixture of a silicone masterbatch, a stearate, and a polyethylene wax.
  10. 根据权利要求1所述的新能源汽车高压线用高阻燃复合材料，其特征在于：所述交联敏化剂为TAIC。The high flame retardant composite material for a high-voltage line for a new energy vehicle according to claim 1, wherein the crosslinking sensitizer is TAIC.
  11. 权利要求1～10中任一项权利要求所述的新能源汽车高压线用高阻燃复合材料的制备方法，其特征在于，所述制备方法包括以下步骤：将聚乙烯树脂、聚烯烃弹性体、乙烯-醋酸乙烯共聚物、氯化聚乙烯、复合阻燃剂、耐磨阻燃协效剂、抗氧剂、润滑剂、交联敏化剂按配方比例加入捏合机中搅拌均匀，然后将混合物经双螺杆或密炼机混炼挤出造粒，制得高阻燃复合材料，其中，双螺杆挤出工艺：进料段、熔融段、模头温度依次为120℃～130℃、150℃～165℃、165℃～175℃，密炼温度150℃～160℃。The method for preparing a high-flame-retardant composite material for a high-voltage electric vehicle of a new energy source according to any one of claims 1 to 10, wherein the preparation method comprises the steps of: a polyethylene resin, a polyolefin elastomer, Ethylene-vinyl acetate copolymer, chlorinated polyethylene, composite flame retardant, wear-resistant flame retardant synergist, antioxidant, lubricant, cross-linking sensitizer are added to the kneader in the proportion of the formula, and the mixture is evenly mixed. The high-flame-retardant composite material is obtained by twin-screw or internal mixer kneading extrusion granulation, wherein the twin-screw extrusion process: the feed section, the melting section, and the die temperature are 120 ° C to 130 ° C, 150 ° C in this order. ～165°C, 165°C～175°C, and the mixing temperature is 150°C～160°C.
PCT/CN2018/078163 2017-06-30 2018-03-06 High flame retardancy composite material for high voltage cable of new energy automobile, and preparation method thereof WO2019001003A1 (en)

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