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High temperature and high pressure resistant conductive rubber composition

A technology of conductive rubber and high temperature resistance, applied in the field of rubber, can solve problems such as difficult bonding, limited use range, and decreased thermal stability at high temperatures, and achieve the effects of reliable rubber quality, low rubber cost, and good adaptability

Inactive Publication Date: 2017-04-26
唐翔 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing conductive rubber materials, fluorosilicone rubber with excellent high and low temperature performance has low mechanical properties and is difficult to bond, which limits its application range; while other conductive rubber materials in the market have poor performance in wide temperature ranges, such as low temperature crystallization. Hardness leads to a sharp increase in shear modulus; high temperature thermal stability decreases, unable to meet the requirements of wide temperature range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high temperature and high pressure resistant conductive rubber composition, comprising the following raw materials: 135 parts of fluorosilicone rubber, 45 parts of neoprene rubber, 30 parts of natural rubber, 40 parts of conductive filler, 5 parts of talcum powder, 5 parts of aluminum oxide, and 12 parts of magnesium oxide , 7 parts of zirconia, 22 parts of reinforcing filler, 12 parts of vulcanization activator, 0.9 parts of vulcanization agent, 2.5 parts of vulcanization activator, 6 parts of plasticizer, and 4 parts of anti-aging agent.

[0028] Wherein, the conductive filler is nickel-plated graphite, silver powder, silver-plated aluminum, silver-plated nickel, and silver-plated copper; the reinforcing filler is nano-carbon black and modified kaolin; the vulcanization activator is calcium hydroxide, oil A mixture of acid and triethanolamine; the vulcanizing agent is a mixture of sulfur, benzoyl peroxide and ethyl carbamate; the vulcanizing activator is ethylene thi...

Embodiment 2

[0035] A high temperature and high pressure conductive rubber composition, comprising the following raw materials: 120 parts of fluorosilicone rubber, 60 parts of neoprene rubber, 15 parts of natural rubber, 50 parts of conductive filler, 2 parts of talcum powder, 7 parts of aluminum oxide, and 8 parts of magnesium oxide , 10 parts of zirconia, 15 parts of reinforcing filler, 13 parts of vulcanization activator, 0.8 part of vulcanization agent, 3 parts of vulcanization activator, 6 parts of plasticizer, 4 parts of antioxidant.

[0036] Wherein, the conductive filler is nickel-plated graphite, silver-plated nickel, and silver-plated copper; the reinforcing filler is modified kaolin; the vulcanization activator is calcium hydroxide; the vulcanization agent is sulfur; the vulcanization activator is Ethylene thiourea; the plasticizer is naphthenic oil; the anti-aging agent is anti-aging agent MB.

[0037] The preparation method of the high temperature and high pressure conductive ...

Embodiment 3

[0043] A conductive rubber composition resistant to high temperature and high pressure, comprising the following raw materials: 160 parts of fluorosilicone rubber, 30 parts of neoprene rubber, 40 parts of natural rubber, 20 parts of conductive filler, 7 parts of talcum powder, 3 parts of aluminum oxide, and 15 parts of magnesium oxide , 6 parts of zirconia, 15 parts of reinforcing filler, 5 parts of vulcanization activator, 1.8 parts of vulcanization agent, 1.2 parts of vulcanization activator, 10 parts of plasticizer, 2 parts of anti-aging agent.

[0044] Wherein, the conductive filler is silver-plated aluminum, silver-plated nickel, and silver-plated copper; the reinforcing filler is nano-carbon black; the vulcanization activator is oleic acid; the vulcanization agent is benzoyl peroxide; The active agent is zinc dimethyl dithiocarbamate; the plasticizer is dioctyl phthalate; and the anti-aging agent is anti-aging agent NBC.

[0045] The preparation method of the high temperat...

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PUM

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Abstract

The invention discloses a high temperature and high pressure resistant conductive rubber composition. The high temperature and high pressure resistant conductive rubber composition is prepared from 120-160 parts of fluorosilicone, 30-60 parts of neoprene, 15-40 parts of natural rubber, 20-50 parts of conductive filler, 2-7 parts of talcum powder, 3-7 parts of aluminum oxide, 8-15 parts of magnesium oxide, 6-10 parts of zirconia, 15-25 parts of reinforcing filler, 5-13 parts of vulcanizing activator, 0.8-1.8 parts of vulcanizer, 1.2-3 parts of vulcanizing activator, 6-10 parts of plasticizer and 2-4 parts of antiager. The high temperature and high pressure resistant conductive rubber composition has the advantages of being small in electrical resistivity, resistant to shocks of high temperature and high pressure, not prone to easy cracking, good in wide temperature range adaptability, meeting the using demand of a wide temperature range, reliable in quality, durable, low in cost, simple to prepared and suitable for scale production.

Description

technical field [0001] The invention relates to a rubber, in particular to a high temperature and high pressure conductive rubber composition. Background technique [0002] Conductive rubber is to uniformly distribute conductive particles such as glass silver plating, aluminum silver plating, and silver in fluorosilicone rubber, and make the conductive particles contact through pressure to achieve good electrical conductivity. It is used in both military and commercial applications. Its main function is Hermetically sealed and electromagnetically shielded. Products can be molded or extruded and are available in sheet or other die-cut shapes. Shielding performance up to 120dB (10 GHz). Divided into CONSIL-NC (graphite nickel-plated fluorosilicone rubber) CONSIL-V (silver-filled fluorosilicone rubber extrusion liner) CONSIL-A (aluminum silver-plated fluorosilicone rubber) CONSIL-N (nickel-plated silver-filled fluorosilicone Rubber) CONSIL-C (copper silver-filled fluorosilic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/08C08L11/00C08L7/00C08L91/00C08K13/06C08K9/02C08K3/04C08K3/08C08K3/34C08K3/22C08K5/14B29B7/00
CPCC08L83/08B29B7/005C08K2201/001C08K2201/011C08K2201/014C08L2201/08C08L2205/035C08L11/00C08L7/00C08L91/00C08K13/06C08K9/02C08K3/04C08K2003/0806C08K3/34C08K2003/2227C08K5/14
Inventor 唐翔陈素云
Owner 唐翔
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