Non-black appearance conductive silicon rubber material and preparation method thereof

A rubber material, non-black technology, applied in the field of silicone rubber materials and its preparation, can solve the problems of limited mechanical strength and electrical performance of silicone rubber, and achieve the effects of excellent electrical performance, high flame retardancy, and high tensile strength

Inactive Publication Date: 2018-07-17
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has limited improvement in the mechanical strength and electrical properties of silicone rubber.

Method used

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  • Non-black appearance conductive silicon rubber material and preparation method thereof
  • Non-black appearance conductive silicon rubber material and preparation method thereof
  • Non-black appearance conductive silicon rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Add 1000g of methyl vinyl silicone rubber raw rubber into the kneader, add 200g of white carbon black, 10g of hydroxy silicone oil, and 20g of dimethyldiethoxysilane into the kneader in 4 times, and stir after each addition 20 minutes; after white carbon black, hydroxy silicone oil, diethoxysilane and the resulting mixture are mixed and formed, the resulting molding mixture is heated to 160-170 ° C, and vacuumed, and kept for 3 hours; the temperature of the obtained heated material is lowered To 80 degrees Celsius, sequentially add 300g of conductive titanium dioxide and 20g of polyoxyethylene laurate into the kneader and knead for 30 to 60 minutes, and control the temperature below 100 degrees Celsius; After the obtained mixed material is stirred and shaped, continue to stir for 30 minutes to discharge the material, and prepare the silicone rubber material; mix the gained silicone rubber material with 10 g of 2,5-dimethyl-2,5-bis(tert-butyl peroxide Base) Hexane is unif...

Embodiment 2

[0040] Add 1000g of methyl vinyl silicone rubber raw rubber into the kneader, add 350g of white carbon black, 15g of hydroxy silicone oil, and 45g of dimethyldiethoxysilane into the kneader in 4 times, and stir after each addition 20 minutes; after white carbon black, hydroxy silicone oil, diethoxysilane and the resulting mixture are mixed and formed, the resulting molding mixture is heated to 160-170 ° C, and vacuumed, and kept for 3 hours; the temperature of the obtained heated material is lowered To 80°C, add 600g of conductive mica powder and 100g of polyoxyethylene castor oil to the kneader and knead for 30-60 minutes, and control the temperature below 100°C; After the material is stirred and shaped, continue to stir for 30 minutes to discharge, and the silicone rubber material is prepared; the gained silicone rubber material is mixed with 20 g of 2,5-dimethyl-2,5-bis(tert-butyl peroxide) After the hexane is uniformly mixed in an open rubber mixer, it is placed in a flat ...

Embodiment 3

[0042] Add 1000g of methyl vinyl silicone rubber raw rubber into the kneader, add 450g of white carbon black, 50g of hydroxy silicone oil, and 60g of dimethyldiethoxysilane into the kneader in 4 times, and stir after each addition 20 minutes; after white carbon black, hydroxy silicone oil, diethoxysilane and the resulting mixture are mixed and formed, the resulting molding mixture is heated to 160-170 ° C, and vacuumed, and kept for 3 hours; the temperature of the obtained heated material is lowered to 80°C, sequentially add 1500g of conductive barium sulfate and 150g of polyoxyethylene castor oil into the kneader and knead for 30-60 minutes, and control the temperature below 100°C; to be conductive barium sulfate and polyoxyethylene castor oil and the resulting mixture After the material is stirred and shaped, continue to stir for 30 minutes to discharge, and the silicone rubber material is prepared; the gained silicone rubber material is mixed with 20 g of 2,5-dimethyl-2,5-bi...

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Abstract

The invention relates to a non-black appearance conductive silicon rubber material and a preparation method thereof. The silicon rubber material comprises the following components in parts by weight:100 parts of methyl vinyl silicone rubber, 20-45 parts of white carbon black, 1-5 parts of hydroxyl silicone oil, 2-6 parts of dimethyl diethyoxyl silane, 30-150 parts of conductive packing, 2-15 parts of an anti-electrostatic agent and 1-2 parts of 2,5-dimethyl-2,5-di(tert-butyl peroxide) hexane. The preparation method specifically comprises the following steps: mixing the methyl vinyl silicone rubber, the white carbon black, the hydroxyl silicone oil, the dimethyl diethyoxyl silane, the conductive packing and the anti-electrostatic agent, further uniformly mixing with the 2,5-dimethyl-2,5-di(tert-butyl peroxide) hexane, and performing vulcanization, thereby obtaining the non-black appearance conductive silicon rubber material. Compared with the prior art, the silicon rubber material provided by the invention is relatively high in tension strength, excellent in electric property, excellent in high-temperature resistance and excellent in flame retardancy and has a non-black appearance.

Description

technical field [0001] The invention relates to a silicone rubber material and a preparation method thereof, in particular to a non-black conductive silicone rubber material and a preparation method thereof. Background technique [0002] Silicone rubber has been widely used in aviation, aerospace, electrical, electrical, chemical, automotive, machinery and other industries, as well as medical and health care, and daily life. In general, silicone rubber is an excellent insulating material. During use, due to the friction and impact of air flow, liquid flow, etc., charges are generated on its surface. The accumulation of surface charges is prone to generate static electricity. When the static electricity accumulates to a certain extent, it will cause discharge, and may even cause breakdown or There is a fire. Therefore, in order to improve the safety and reliability of silicone rubber materials during use, on the premise of ensuring that their mechanical properties meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08L71/02C08K13/02C08K5/14C08K3/36C08K3/22C08K3/34C08K3/30C08K5/5419
CPCC08K2003/2241C08K2003/3045C08K2201/001C08K2201/014C08K2201/017C08L83/04C08L2201/02C08L2201/08C08L2205/025C08L2205/03C08L71/02C08K13/02C08K3/36C08K3/22C08K5/14C08K5/5419C08K3/34
Inventor 宋佳男张勇吴蕾陈禹廷陈才宝王海平林远
Owner SHANGHAI JIAO TONG UNIV
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