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A kind of insulating and heat-conducting cable material and preparation method thereof

A technology of insulation and heat conduction, cable material, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve problems such as hidden safety hazards, affecting the insulation performance of sheath materials, etc., to improve thermal conductivity, good resistance to environmental stress cracking, Good mechanical strength

Inactive Publication Date: 2018-04-03
STATE GRID HENAN SHEQI POWER SUPPLY CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat conduction agent of the invention and the auxiliary heat conduction agent can obviously improve the thermal conductivity of the sheath layer material, but the heat conduction agent in the invention adopts graphene or graphene oxide, both of which are conductive materials, which may affect the insulation performance of the sheath material. Security risks

Method used

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  • A kind of insulating and heat-conducting cable material and preparation method thereof

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Effect test

Embodiment 1

[0027] An insulating and heat-conducting cable material, comprising the following raw materials in parts by weight: 60 parts of high-density polyethylene, 22 parts of modified polypropylene, 25 parts of heat-conducting filler, 6 parts of polyolefin elastomer, 5 parts of glass fiber, and a compatibilizer 3 parts of toric anhydride grafted polypropylene, 3 parts of modified zinc borate, 15 parts of ethylene-vinyl acetate copolymer.

[0028] The preparation method of modified polypropylene includes the following steps: after mixing glycidyl methacrylate, benzoyl peroxide and polypropylene in a weight ratio of 0.5:0.3:10, melting and reacting at 170°C for 10 minutes, and pulverizing to 80 mesh.

[0029] The preparation method of the thermally conductive filler comprises the following steps: after mixing silicon nitride whiskers and magnesium oxide uniformly in a weight ratio of 2:1, adding 2% of silane coupling agent γ-aminopropyltriethoxysilane In ethanol solution, ultrasonicall...

Embodiment 2

[0036] An insulating and heat-conducting cable material, comprising the following raw materials in parts by weight: 62 parts of high-density polyethylene, 20 parts of modified polypropylene, 22 parts of heat-conducting filler, 7 parts of polyolefin elastomer, 6 parts of glass fiber, compatibilizer horse 4 parts of toric anhydride grafted polyethylene, 4 parts of modified zinc borate, 14 parts of ethylene-vinyl acetate copolymer.

[0037] The preparation method of modified polypropylene includes the following steps: after mixing glycidyl methacrylate, benzoyl peroxide and polypropylene in a weight ratio of 0.5:0.6:10, melting and reacting at 180°C for 6 minutes, and pulverizing to 100 mesh.

[0038] The preparation method of the thermally conductive filler includes the following steps: After mixing silicon nitride whiskers and magnesium oxide uniformly in a weight ratio of 3:1, adding a mass fraction of 5% silane coupling agent γ-(2,3-glycidyl oxide Base) in ethanol solution of ...

Embodiment 3

[0045] An insulating and heat-conducting cable material, comprising the following raw materials in parts by weight: 65 parts of high-density polyethylene, 25 parts of modified polypropylene, 20 parts of heat-conducting filler, 8 parts of polyolefin elastomer, 7 parts of glass fiber, compatibilizer horse 5 parts of toric anhydride grafted polypropylene, 6 parts of modified zinc borate, and 13 parts of ethylene-vinyl acetate copolymer.

[0046] The preparation method of modified polypropylene includes the following steps: after mixing glycidyl methacrylate, benzoyl peroxide and polypropylene in a weight ratio of 1:0.3:10, melting and reacting at 175°C for 10 minutes, and pulverizing to 90 mesh.

[0047] Wherein the preparation method of the thermally conductive filler comprises the following steps: after mixing silicon nitride whiskers and magnesium oxide in a weight ratio of 2.5:1, adding a mass fraction of 3% silane coupling agent γ-aminopropyltriethoxysilane In ethanol solut...

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Abstract

The invention discloses an insulating heat conducting cable material. The insulating heat conducting cable material comprises the following raw materials in parts by weight: 60 to 70 parts of high-density polyethylene, 20 to 30 parts of modified polypropylene, 15 to 25 parts of heat conducting filler, 6 to 10 parts of polyolefin elastomers, 5 to 8 parts of glass fibres, 3 to 5 parts of a compatilizer, 3 to 8 parts of modified zinc borate, and 10 to 15 parts of ethylene-vinyl acetate copolymer. The insulating cable material is high in heat conductivity, high in insulating property, high in tensile strength, high in toughness, and convenient to process.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to an insulating and heat-conducting cable material and a preparation method thereof. Background technique [0002] Wires and cables include bare wires, wires and cables for electrical equipment, power cables, communication cables and optical cables, and winding wires. Cable materials are commonly known as plastics for wire and cable insulation and sheathing. The polymer materials used mainly include polyvinyl chloride, polyethylene, Polypropylene, fluoroplastics, chlorinated polyether and polyamide, etc. These polymer materials have the characteristics of light weight, chemical corrosion resistance, easy processing, excellent electrical insulation performance, excellent mechanical and fatigue resistance, etc., but these materials The thermal conductivity of the cable is very low, generally 0.1-0.3W / (m K), almost a thermal insulator, the heat dissipation effect is poor, and the heat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L51/06C08L23/08C08K13/06C08K9/06C08K7/10C08K3/22C08K9/04C08K3/38C08K7/14H01B3/44C08F255/02C08F220/32B29C47/92B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08F255/02C08K2201/003C08K2201/004C08K2201/011C08L23/06C08L2201/02C08L2205/025C08L2205/035C08L2205/08C08L2207/062H01B3/441C08L51/06C08L23/0853C08K13/06C08K9/06C08K7/10C08K2003/222C08K9/04C08K2003/387C08K7/14C08F220/325
Inventor 石岩薛宇王伟张菲
Owner STATE GRID HENAN SHEQI POWER SUPPLY CO
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