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Conductive rubber composition and preparation method thereof

A technology of conductive rubber and composition, applied in the field of rubber, can solve the problems of high cost and difficulty in synthesizing fluorosilicone rubber, and achieve the effects of improving oil resistance and solvent resistance, good processing and manufacturing process performance, and low volume resistivity

Inactive Publication Date: 2016-11-16
ANHUI WEIWEI RUBBER PARTS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a conductive rubber composition and its preparation method, which solves the problems of high synthesis difficulty and high cost of the existing fluorosilicone rubber

Method used

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  • Conductive rubber composition and preparation method thereof
  • Conductive rubber composition and preparation method thereof
  • Conductive rubber composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present invention proposes a kind of conductive rubber composition, and its raw material comprises by weight:

[0028]

[0029] The reinforcing agent is carbon black, the anti-aging agent is N-phenyl-α-aniline, the vulcanizing agent is dicumyl peroxide, the silicone rubber is methyl silicone rubber, the fluororubber is polyolefin fluororubber, and the conductive filler is graphite .

[0030] The invention also discloses a preparation method of a conductive rubber composition, comprising the following steps:

[0031] Step 1: Carry out low-temperature mastication of silicone rubber and fluororubber respectively through an open mill;

[0032] Step 2: Mix the silicone rubber, fluororubber, conductive filler, anti-aging agent, reinforcing agent, calcium carbonate, zinc diethyldithiocarbamate, vulcanizing agent, and silane coupling agent after plasticizing in step 1, and mix the obtained The mixture is kneaded twice;

[0033] Step 3: park the mixture kneaded in step...

Embodiment 2

[0036] The present invention proposes a kind of conductive rubber composition, and its raw material comprises by weight:

[0037]

[0038] The reinforcing agent is carbon black, the anti-aging agent is N-phenyl-α-aniline, the vulcanizing agent is dicumyl peroxide, the silicone rubber is methyl silicone rubber, the fluororubber is polyolefin fluororubber, and the conductive filler is graphite .

[0039] The invention also discloses a preparation method of a conductive rubber composition, comprising the following steps:

[0040] Step 1: Carry out low-temperature mastication of silicone rubber and fluororubber respectively through an open mill;

[0041] Step 2: Mix the silicone rubber, fluororubber, conductive filler, anti-aging agent, reinforcing agent, calcium carbonate, zinc diethyldithiocarbamate, vulcanizing agent, and silane coupling agent after plasticizing in step 1, and mix the obtained The mixture is kneaded twice;

[0042] Step 3: park the mixture kneaded in step...

Embodiment 3

[0045] The present invention proposes a kind of conductive rubber composition, and its raw material comprises by weight:

[0046]

[0047] The reinforcing agent is carbon black, the anti-aging agent is N-phenyl-α-aniline, the vulcanizing agent is dicumyl peroxide, the silicone rubber is methyl silicone rubber, the fluororubber is polyolefin fluororubber, and the conductive filler is silver Aluminum clad.

[0048] The invention also discloses a preparation method of a conductive rubber composition, comprising the following steps:

[0049] Step 1: Carry out low-temperature mastication of silicone rubber and fluororubber respectively through an open mill;

[0050] Step 2: Mix the silicone rubber, fluororubber, conductive filler, anti-aging agent, reinforcing agent, calcium carbonate, zinc diethyldithiocarbamate, vulcanizing agent, and silane coupling agent after plasticizing in step 1, and mix the obtained The mixture is kneaded twice;

[0051] Step 3: park the mixture knea...

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Abstract

The invention discloses a conductive rubber composition and a preparation method thereof. The conductive rubber composition is prepared from the following raw materials in parts by weight: 50-100 parts of silicone rubber, 20-60 parts of fluorous rubber, 30-60 parts of conductive filler, 1-5 parts of curing agent, 10-20 parts of calcium carbonate, 1-5 parts of zinc diethyl dithiocarbamate, 3-15 parts of silane coupling agent, 10-20 parts of anti-aging agent and 10-20 parts of reinforcing agent. The conductive rubber composition prepared from the silicone rubber, fluorous rubber, conductive filler, anti-aging agent, reinforcing agent, curing agent and silane coupling agent has superior characteristics of both the silicone rubber and the fluorous rubber, and has the characteristics of low volume resistivity, low hardness, high and low temperature resistance, weather resistance and good processing and manufacturing technical properties of the silicone rubber as well as oil resistance and solvent resistance of the fluorous rubber. The volume change rate of the conductive rubber composition is only 1.2%, while by same tests, the volume change rate of the traditional silicone rubber is 25% and the volume change rate of fluorinated silicone rubber is 3%, showing that the sample prepared by the technical scheme of the invention is remarkably improved in oil resistance and solvent resistance.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a conductive rubber composition and a preparation method thereof. Background technique [0002] Rubber material is a polymer material that can quickly recover from deformation under large deformation. It is one of the important basic industries of the national economy. Conductive rubber is based on rubber, filled with mixed conductive fillers and cross-linking agents. It has good conductivity and filling performance, and is widely used in the fields of electronics, telecommunications, electric power, military industry, aviation, aerospace and ships, etc., and is mostly used for sealing and sealing of electronic and microwave waveguide systems such as chassis, cabinets, and shelters. Electromagnetic shielding occasions. Most of the existing conductive rubbers are based on silicone rubber. Compared with general conductive rubber, conductive silicone rubber has the advantages of sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L27/12C08L79/00C08K13/06C08K13/02C08K9/10C08K3/08C08K3/04C08K3/26C08K5/39C08K5/18
CPCC08L83/04C08K2201/001C08K2201/014C08L2201/08C08L27/12C08K13/02C08K3/04C08K2003/265C08K5/39C08K5/18C08K13/06C08K9/10C08K2003/0812C08L79/00
Inventor 李俊梁天也李斌商李徐兵
Owner ANHUI WEIWEI RUBBER PARTS GRP
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