Low-density electric-conductive rubber and preparation method of same

A conductive rubber, low-density technology, applied in the field of low-density conductive rubber and its preparation, to achieve the effects of reduced production costs, high tensile strength, and long service life

Inactive Publication Date: 2017-10-24
HEFEI ZEJUN ELECTRICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The volume resistance of the conductive rubber filled with conductive carbon black can usually be kept at several thousand ohms. Since a single acetylene carbon black is used in the existing formula, its tensile strength can only reach 12Mpa, which is far from meeting the actual needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A low-density conductive rubber, weighing the following raw materials: 40kg of silicone rubber, 15kg of chlorinated butyl rubber, 5kg of aluminized glass fiber, 5kg of nano-zinc oxide, 4kg of acetylene carbon black, 3kg of paraffin oil, 5kg of antimony trioxide, and rosin 4kg, vulcanizing agent 1kg, plasticizer 1kg, antioxidant 1kg and defoamer 1kg;

[0024] The above-mentioned aluminized glass fiber is obtained through the following steps: Weigh 5 kg of glass fiber and add it to 4% sodium hydroxide hot lye for 40 minutes. The temperature of the lye is 60°C. Add it to the mixed solution of potassium dichromate and 8% hydrochloric acid with a volume concentration of 2% and soak for 30 minutes. After soaking, take it out and dry it; then add the glass fiber to the SnCl with a volume concentration of 3%. 2 Soak with 4% hydrochloric acid mixture for 30 minutes, take out and dry after soaking; add glass fiber to the activation solution and soak for 20 minutes, take out and d...

Embodiment 2

[0030] A low-density conductive rubber, weighing the following raw materials: 50kg of silicone rubber, 20kg of chlorinated butyl rubber, 10kg of aluminized glass fiber, 10kg of nano-zinc oxide, 6kg of acetylene carbon black, 5kg of paraffin oil, 6kg of antimony trioxide, rosin 6kg, vulcanizing agent 3kg, plasticizer 2kg, antioxidant 2kg and defoamer 2kg;

[0031] The above-mentioned aluminized glass fiber is obtained through the following steps: Weigh 10 kg of glass fiber and add it to 6% sodium hydroxide hot lye for 45 minutes. The temperature of the lye is 65°C. Add it to the mixed solution of potassium dichromate and 10% hydrochloric acid with a volume concentration of 3% and soak for 35 minutes. After soaking, take it out and dry it; then add the glass fiber to the SnCl with a volume concentration of 4%. 2 Soak with 6% hydrochloric acid mixture for 35 minutes, take out and dry after soaking; add glass fibers to the activation solution and soak for 25 minutes, take out and ...

Embodiment 3

[0037] A low-density conductive rubber, weighing the following raw materials: 60kg of silicone rubber, 25kg of chlorinated butyl rubber, 15kg of aluminized glass fiber, 15kg of nano-zinc oxide, 8kg of acetylene carbon black, 7kg of paraffin oil, 7kg of antimony trioxide, rosin 8kg, vulcanizing agent 5kg, plasticizer 3kg, antioxidant 3kg and defoamer 3kg;

[0038] The above-mentioned aluminized glass fiber is obtained through the following steps: Weigh 15 kg of glass fiber and add it to 8% sodium hydroxide hot lye for 50 minutes. The temperature of the lye is 70°C. Add it to the mixed solution of potassium dichromate and 12% hydrochloric acid with a volume concentration of 4% and soak for 40 minutes. After soaking, take it out and dry it; then add the glass fiber to the SnCl with a volume concentration of 5%. 2 Soak with 8% hydrochloric acid mixture for 40 minutes, take out and dry after soaking; add glass fiber to the activation solution and soak for 30 minutes, take out and d...

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Abstract

The invention discloses low-density electric-conductive rubber and a preparation method of same, and relates to the field of electric-conductive materials. The electric-conductive rubber comprises, by weight, silicon rubber, chlorinated butyl rubber, aluminum-plated glass fibers, nano ZnO, acetylene black, paraffin oil, antimonous oxide, rosin, a vulcanizer, a plasticizer, an antioxidant, and a defoamer. The preparation method includes the steps of performing stepwise mixing to the raw materials; and performing two-stage vulcanization treatment. The electric-conductive rubber is easy and convenient to produce, is low in density, is excellent in electric conductivity and high in tensile strength, has wide application area, and has great market prospect.

Description

technical field [0001] The invention relates to the field of conductive materials, in particular to a low-density conductive rubber and a preparation method thereof. Background technique [0002] Conductive rubber usually means that the volume resistance is within 9 times of 10 ohm centimeters. Since rubber is an excellent insulator, the volume resistance is greater than about 14 times of 10. Conductive rubber is divided into anti-static grade conductive rubber. The volume resistance is between 10 to the 9th power of 10, or even as low as one or two hundred ohms. It is very difficult to lower it to less than 50 ohm cm. The volume resistance of the conductive rubber filled with conductive carbon black can usually be kept at several thousand ohms. Since a single acetylene carbon black is used in the existing formula, its tensile strength can only reach 12Mpa, which is far from meeting the actual needs. Conductive rubber is used in both military and commercial applications, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L23/28C08L93/04C08L91/06C08K13/06C08K9/02C08K7/14C08K3/22C08K3/04B29B7/00B29C35/02
CPCB29B7/005B29C35/02C08K2003/2296C08K2201/001C08K2201/011C08L83/04C08L2205/035C08L23/28C08L93/04C08L91/06C08K13/06C08K9/02C08K7/14C08K3/22C08K3/04C08K3/2279
Inventor 徐仙峰
Owner HEFEI ZEJUN ELECTRICAL EQUIP CO LTD
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