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High-strength heat-resistant modified silicon rubber power cable sheath material

A heat-resistant modification, power cable technology, applied in the direction of insulating cables, rubber insulators, cables, etc., can solve the problems of weak interaction between molecular chains, large molecular flexibility of silicone rubber, and poor mechanical strength that cannot meet social requirements. , to prevent thermal oxidation free radical chain growth, improve interaction and increase hardness

Inactive Publication Date: 2015-01-21
ANHUI CONSTANT CRYSTAL CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone rubber is a commonly used material for power cable sheaths. However, due to the large molecular flexibility of silicone rubber and the weak interaction between molecular chains, its mechanical strength is poor and cannot meet the requirements of the society. Further research and improvement are needed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The high-strength heat-resistant modified silicon rubber power cable sheath material of the present invention, its raw material comprises by weight: 80 parts of silicon rubber, 20 parts of fluororubber, 40 parts of nano-calcium carbonate, 3 parts of modified white carbon black, titanic acid 8 parts of potassium whiskers, 30 parts of aluminum hydroxide, 5 parts of iron oxide, 7 parts of tin oxide, 2 parts of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 2 parts of methyl 1.3 parts of trimethylketoxime silane, 0.8 parts of benzoyl peroxide, 3 parts of hydroxy silicone oil, 8 parts of aminosilane coupling agent, 0.3 parts of dibutyltin dilaurate, 2.7 parts of magnesium oxide, 0.3 parts of hydroxystearic acid parts, accelerator 1.8 parts, anti-aging agent 0.5 parts, plasticizer 0.9 parts.

Embodiment 2

[0019] The high-strength heat-resistant modified silicon rubber power cable sheath material of the present invention, its raw material comprises by weight: 90 parts of silicon rubber, 10 parts of fluororubber, 20 parts of nano-calcium carbonate, 6 parts of modified white carbon black, titanic acid 3 parts of potassium whiskers, 50 parts of aluminum hydroxide, 1 part of iron oxide, 12 parts of tin oxide, 1 part of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 1 part of methyl 1.8 parts of trimethylketoxime silane, 0.2 parts of benzoyl peroxide, 15 parts of hydroxyl silicone oil, 2 parts of γ-aminopropyl triethoxysilane, 0.6 parts of dibutyltin dilaurate, 1 part of magnesium oxide, 1.7 parts of hydroxystearic acid, 1 part of accelerator DM, 1 part of antioxidant MB, 1.3 parts of antioxidant BZ, 0.2 parts of plasticizer;

[0020] Wherein, the modified white carbon black is prepared according to the following process: add 70 parts of ammonia water and 35 parts of methanol in the f...

Embodiment 3

[0022] The high-strength heat-resistant modified silicone rubber power cable sheath material of the present invention, its raw materials include by weight: 86 parts of silicone rubber, 14 parts of fluororubber, 31 parts of nano calcium carbonate, 4.5 parts of modified white carbon black, titanic acid 6.3 parts of potassium whiskers, 41 parts of aluminum hydroxide, 3.2 parts of iron oxide, 9.5 parts of tin oxide, 1.46 parts of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, methyl 1.59 parts of tributanoximinosilane, 0.36 parts of benzoyl peroxide, 11 parts of hydroxyl silicone oil, 2 parts of N-β-(aminoethyl)-γ-aminopropylmethyltriethoxysilane, γ-ammonia 3.6 parts of ethylaminopropyl trimethoxysilane, 0.41 parts of dibutyl tin dilaurate, 2.3 parts of magnesium oxide, 1.45 parts of hydroxystearic acid, 0.5 parts of accelerator NS, 0.82 parts of accelerator DZ, 40201.96 parts of anti-aging agent , 0.63 parts of plasticizer;

[0023] Wherein, the modified white carbon black is pre...

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PUM

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Abstract

The invention discloses a high-strength heat-resistant modified silicon rubber power cable sheath material which is prepared from the following raw materials in parts by weight: silicone rubber, fluorine rubber, nano calcium carbonate, modified silica, potassium titanate whiskers, aluminum hydroxide, ferric oxide, tin oxide, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, methyltris(methylethylketoximino)silane, benzoyl peroxide, hydroxyl silicone oil, an amino silane coupling agent, dibutyltin dilaurate, magnesium oxide, a hydroxy stearic acid, an accelerant, an antiager, and a plasticizer. The high-strength heat-resistant modified silicon rubber power cable sheath material disclosed by the invention is high in strength and good in heat resistance, and a cable sheath prepared by using the high-strength heat-resistant modified silicon rubber power cable sheath material is good in comprehensive performance and long in service life.

Description

technical field [0001] The invention relates to the technical field of cable sheath materials, in particular to a high-strength heat-resistant modified silicon rubber power cable sheath material. Background technique [0002] With its excellent cold resistance, heat resistance, weather resistance and electrical insulation, silicone rubber has been widely used in construction, transportation, machinery, electronics and chemical industries, especially in the new energy industry that has flourished in recent years. Such as solar photovoltaic power generation system, solar street lighting, wind power generation, etc. all need to use silicone rubber with excellent weather resistance. Silicone rubber is a commonly used material for power cable sheaths. However, due to the molecular flexibility of silicone rubber and the weak interaction between molecular chains, its mechanical strength is poor and cannot meet the requirements of the society. Further research and improvement are ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L27/12C08L83/06H01B3/28H01B7/17C08K13/06C08K9/06C08K3/36C08K3/26C08K7/08C08K3/22C08K5/14C08K5/5465C08K5/544C08K5/57C08K5/09
Inventor 唐涛巫后锁赵玉贵
Owner ANHUI CONSTANT CRYSTAL CABLE GROUP
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