Anti-aging conductive rubber and preparation method thereof

A conductive rubber and anti-aging technology, applied in the field of conductive materials, can solve the problems of high cost, high material density, limited electrical conductivity, etc., and achieve the effects of high tensile strength, good electrical conductivity, and good anti-aging properties.

Inactive Publication Date: 2017-11-03
HEFEI DONGHENGRUI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although filling metal powder can obtain excellent electrical conductivity, it has disadvantages such as high cost and high material density; carbon-based fillers have low density, but limited electrical conductivity, and are generally suitable for the preparation of ordinary materials with a volume resistivity above 1Ω·cm. Conductive rubber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An anti-aging conductive rubber, the following raw materials are weighed for later use: 50kg of silicone rubber, 20kg of isoprene-butadiene rubber, 15kg of modified carbon nanotubes, 5kg of carbon black N2205kg, 5kg of silver-plated glass fiber, and 4kg of dimethyl silicone oil , 6kg of zinc oxide, 1kg of vulcanizing agent, 1kg of anti-aging agent, 1kg of accelerator and 1kg of ultraviolet light stabilizer;

[0025] The above-mentioned modified carbon nanotubes are prepared by the following steps: 15 kg of carbon nanotubes are added to a dimethylformamide solution with a mass concentration of 8%, soaked at a temperature of 38° C. for 6 hours, and ultrasonically treated for 25 minutes after soaking. Then filter and wash, then add it to a nitric acid solution with a mass concentration of 4% for ultrasonic treatment for 60 minutes, filter and wash, then add it to a sulfuric acid solution with a mass concentration of 4% for ultrasonic treatment for 40 minutes, filter and was...

Embodiment 2

[0033] An anti-aging conductive rubber, weighing the following raw materials for use: 60kg of silicone rubber, 25kg of isoprene-butadiene rubber, 20kg of modified carbon nanotubes, 10kg of carbon black N220, 10kg of silver-plated glass fiber, and 6kg of dimethyl silicone oil , 8kg of zinc oxide, 3kg of vulcanizing agent, 2kg of anti-aging agent, 2kg of accelerator and 2kg of ultraviolet light stabilizer;

[0034] The above-mentioned modified carbon nanotubes are prepared by the following steps: 20 kg of carbon nanotubes are added to a dimethylformamide solution with a mass concentration of 10%, soaked at a temperature of 40° C. for 7 hours, and ultrasonically treated for 30 minutes after soaking. Then filter and wash, then add it to a nitric acid solution with a mass concentration of 6% for ultrasonic treatment for 70 minutes, filter and wash, then add it to a sulfuric acid solution with a mass concentration of 6% for ultrasonic treatment for 50 minutes, filter and wash, and th...

Embodiment 3

[0042] An anti-aging conductive rubber, the following raw materials are weighed for later use: 70kg of silicone rubber, 30kg of isoprene-butadiene rubber, 25kg of modified carbon nanotubes, 15kg of carbon black N22015kg, 15kg of silver-plated glass fiber, and 8kg of dimethyl silicone oil , 10kg of zinc oxide, 5kg of vulcanizing agent, 3kg of anti-aging agent, 3kg of accelerator and 3kg of ultraviolet light stabilizer;

[0043] The above-mentioned modified carbon nanotubes are prepared by the following steps: 25 kg of carbon nanotubes are added to a dimethylformamide solution with a mass concentration of 12%, soaked at a temperature of 42° C. for 8 hours, and ultrasonically treated for 35 minutes after soaking. Then filter and wash, then add it to a nitric acid solution with a mass concentration of 8% for ultrasonic treatment for 80 minutes, filter and wash, then add it to a sulfuric acid solution with a mass concentration of 8% for ultrasonic treatment for 60 minutes, filter an...

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PUM

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Abstract

The invention discloses anti-aging conductive rubber and a preparation method thereof, and relates to the field of conducting materials. The conductive rubber is prepared from the following raw materials including silicon rubber, isoprene-butadiene rubber, modified carbon nanometer tubes, carbon black N220, silver-plated glass fiber, simethicone, zinc oxide, vulcanizing agents, anti-aging agents, accelerants and ultraviolet ray light stabilizing agents. According to the preparation method, the raw materials are subjected to staged compounding and two-stage vulcanization treatment to prepare the anti-aging conductive rubber. The preparation of the conductive rubber is simple and convenient; in the production process, the thin conduction times and the vulcanization time are properly reduced; the vulcanization temperature is lowered; the production cost output is reduced; the conductive filling materials of a finished product have the characteristics of good anti-aging performance, high tensile intensity and good conductive performance; the service life is long; the anti-aging conductive rubber is suitable for being popularized and used.

Description

technical field [0001] The invention relates to the field of conductive materials, in particular to an anti-aging conductive rubber and a preparation method thereof. Background technique [0002] The composite conductive material prepared by adding conductive fillers with silicone rubber as the base material has the characteristics of high temperature resistance, aging resistance, molding processability and good conductivity. It is suitable for the manufacture of conductive rubber products with complex shapes and small structures, and can be used to manufacture computers. The conductive contact points of equipment such as mobile phones and keyboards, and the highly conductive silicone rubber with a volume resistivity below 1Ω·cm can also be used in the sealing system of aerospace, ships, etc., to realize the harmony and coexistence of electronic and electrical equipment and the environment. Compatible with the environment while avoiding the leakage of important information. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L9/00C08K13/06C08K9/02C08K7/14C08K9/04C08K7/24C08K3/04C08K3/22
CPCC08L83/04C08K2003/2296C08K2201/001C08K2201/011C08L2201/08C08L2205/025C08L2205/03C08L9/00C08K13/06C08K9/02C08K7/14C08K9/04C08K7/24C08K3/04C08K3/22
Inventor 齐慧
Owner HEFEI DONGHENGRUI ELECTRONICS TECH CO LTD
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