Semiconductive silicon rubber screening material for traveling cable and preparation method thereof

A shielding material and silicone rubber technology, applied in the field of cable shielding materials, can solve the problems of high cost of shielding materials, unstable product quality, easy cracking, etc., and achieve the effect of preventing powder from flying, avoiding threats to health, and reducing dosage.

Active Publication Date: 2013-02-27
SICHUAN MINGXING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The invention aims to solve the problems of high cost, unstable product quality, easy cracking and aging of shielding materials in the prior art, and provides a semi-conductive silico...

Method used

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  • Semiconductive silicon rubber screening material for traveling cable and preparation method thereof
  • Semiconductive silicon rubber screening material for traveling cable and preparation method thereof

Examples

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Embodiment 1

[0047] A semiconductive silicone rubber shielding material for mobile cables, comprising the following raw material components in parts by weight:

[0048] Silicone rubber 100 parts

[0049] Conductive carbon black 15 parts

[0050]White carbon black 3 parts

[0051] Dicumyl peroxide 0.5 parts

[0052] 5 parts of hydroxyl silicone oil;

[0053] The silicone rubber is methyl vinyl silicone rubber, dimethyl silicone rubber or methylphenyl vinyl silicone rubber; the conductive carbon black has an average particle size of less than 20nm and a specific resistance of 0.35Ω·cm.

Embodiment 2

[0055] A semiconductive silicone rubber shielding material for mobile cables, comprising the following raw material components in parts by weight:

[0056] Silicone rubber 100 parts

[0057] Conductive carbon black 30 parts

[0058] White carbon black 8 parts

[0059] 2 parts dicumyl peroxide

[0060] 15 parts of hydroxyl silicone oil;

[0061] The silicone rubber is methyl vinyl silicone rubber, dimethyl silicone rubber or methylphenyl vinyl silicone rubber; the conductive carbon black has an average particle size of less than 20nm and a specific resistance of 0.50Ω·cm.

Embodiment 3

[0063] A semiconductive silicone rubber shielding material for mobile cables, comprising the following raw material components in parts by weight:

[0064] Silicone rubber 100 parts

[0065] Conductive carbon black 22.5 parts

[0066] White carbon black 5.5 parts

[0067] Dicumyl peroxide 1.25 parts

[0068] 10 parts of hydroxyl silicone oil;

[0069] The silicone rubber is methyl vinyl silicone rubber, dimethyl silicone rubber or methylphenyl vinyl silicone rubber; the conductive carbon black has an average particle size of less than 20nm and a specific resistance of 0.425Ω·cm.

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Abstract

The invention relates to a semiconductive silicon rubber screening material for a traveling cable and a preparation method thereof, and belongs to the technical field of cable screening materials. The semiconductive silicon rubber screening material comprises the following raw materials by weight: 100 parts of silicon rubber, 15-30 parts of conductive carbon black, 3-8 parts of white carbon black, 0.5-2 parts of dicumyl peroxide and 5-15 parts of hydroxyl silicone oil, wherein the silicon rubber is methyl vinyl silicone rubber, dimethyl silicone rubber or methyl phenyl vinyl silicone rubber; and the conductive carbon black has an average particle size of less than 20 nm and specific resistance of 0.35-0.50 omega.cm. The selected silicon rubber is high in plasticity and good in softness and serves as a base material of the semiconductive screening material, so that the disadvantage of film hardening due to strong constitutive property of the conductive carbon black can be avoided, thereby enabling the semiconductive screening material to be good in production and processing performance.

Description

technical field [0001] The invention relates to a cable shielding material and a preparation method thereof. More specifically, the invention relates to a semiconductive silicone rubber shielding material for a mobile cable and a preparation method thereof, belonging to the technical field of cable shielding materials. Background technique [0002] The shielding involved in cables mainly includes conductor shielding, insulating shielding and metal shielding. Metal shielding is used to shield electromagnetic fields, usually using copper tape shielding and copper wire shielding, the former is used for fixed cables, and the latter is used for mobile cables. The conductor shield is a semi-conductive material wrapped outside the conductor, and its function is to homogenize the electric field and prevent the generation of corona. Insulation shielding is a semi-conductive material wrapped outside the insulation and grounding core wires. When the insulation of one phase is damaged,...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08L83/06C08K3/04C08K3/36C08K5/14
Inventor 张圣博李广元沈卢东盛业武陈光高李勇军吕刚
Owner SICHUAN MINGXING CABLE
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