Anti-aging electric insulation rubber

An insulating rubber and anti-aging technology, applied in the field of electrical insulating rubber, can solve the problems of poor anti-aging performance, easy aging, and shortened service life, and achieve the effects of improving compressive strength, improving service life and improving anti-aging performance.

Inactive Publication Date: 2018-06-01
HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The anti-aging properties of various electrical insulating rubber products currently on the market are relatively poor, and they are very easy to age under strong oxidizing conditions such as outdoor ultraviolet rays, damp heat, and corrosion, which reduces the service life of the products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An anti-aging electrical insulating rubber. According to the parts by mass, the insulating rubber contains 50 parts of rubber-based rubber, 8 parts of white carbon black, 2 parts of di-tert-butyl peroxide diisopropylbenzene, and 1 part of hydroxyl silicone oil. 1 part, 1 part of diphenylsilanediol, 13 parts of talcum powder, 3 parts of zinc oxide, 1 part of stearic acid, 7 parts of modified kaolin, 1 part of coupling agent, 1 part of rubber accelerator, 1 part of sulfur, anti-aging 2 doses.

[0021] The rubber-based rubber includes EPDM rubber, chlorinated polyethylene rubber and methyl vinyl silicone rubber, and the mass ratio of the three is 6:1:1.

[0022] The modification method of kaolin in this example is as follows: roast kaolin at 380°C for 2 hours, then soak it in 8% hydrochloric acid solution for 1 hour, then wash it with deionized water until neutral, dry it, and then add 2% of kaolin mass Sodium lauryl sulfate, polyisobutene equivalent to 3% of kaolin mass ...

Embodiment 2

[0026] An anti-aging electrical insulating rubber. According to the mass parts, the insulating rubber contains 60 parts of rubber-based rubber, 13 parts of white carbon black, 4 parts of di-tert-butyl peroxide dicumylbenzene, and 3 parts of hydroxyl silicone oil. 2 parts, 2 parts of diphenylsilanediol, 16 parts of talcum powder, 5 parts of zinc oxide, 3 parts of stearic acid, 10 parts of modified kaolin, 3 parts of coupling agent, 2 parts of rubber accelerator, 1.5 parts of sulfur, anti-aging 3 doses.

[0027] The rubber-based rubber includes EPDM rubber, chlorinated polyethylene rubber and methyl vinyl silicone rubber, and the mass ratio of the three is 6:1:1.

[0028] The modification method of kaolin in this example is as follows: roast kaolin at 420°C for 3 hours, then soak it in 12% hydrochloric acid solution for 2 hours, then wash it with deionized water until it is neutral, dry it, and then add 3% of kaolin mass Sodium lauryl sulfate, polyisobutene equivalent to 4% of ...

Embodiment 3

[0032] An anti-aging electrical insulating rubber. According to the mass parts, the insulating rubber contains 51 parts of rubber-based rubber, 12 parts of white carbon black, 2 parts of di-tert-butyl peroxide diisopropylbenzene, and 3 parts of hydroxyl silicone oil. 1.5 parts of diphenylsilanediol, 15 parts of talc, 3 parts of zinc oxide, 2 parts of stearic acid, 9 parts of modified kaolin, 2 parts of coupling agent, 2 parts of rubber accelerator, 1.2 parts of sulfur, anti-aging 2.6 parts.

[0033] The rubber-based rubber includes EPDM rubber, chlorinated polyethylene rubber and methyl vinyl silicone rubber, and the mass ratio of the three is 6:1:1.

[0034] The modification method of kaolin in this example is as follows: roast kaolin at 380°C for 2.5 hours, then soak in 8% hydrochloric acid solution for 2 hours, then wash with deionized water until neutral, dry, and then add 3 % sodium lauryl sulfate, 3% polyisobutene equivalent to kaolin mass and 5% magnesium oxide powder ...

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Abstract

The invention relates to the technical field of rubber processing, in particular to an anti-aging electric insulation rubber. The insulation rubber comprises rubber base gum, white carbon black, di-tert-butylperoxy diisopropyl benzene, hydroxy silicone oil, diphenyl silanediol, talcum powder, zinc oxide, stearic acid, modified kaolin, a coupling agent, a rubber accelerator, sulfur and an antioxidant. Specifically, the rubber base gum consists of ethylene propylene diene monomer, chlorinated polyethylene rubber and methyl vinyl silicone rubber; the hydroxy silicone oil adopts high viscosity hydroxy silicone oil with a viscosity of 750-800CS under a normal temperature state; the rubber accelerator is tetraethylthiuram disulfide or zinc dimethyldithiocarbamate; and the antioxidant is an antioxidant A, antioxidant D or antioxidant H. On the basis of ensuring the insulation performance and mechanical properties of the product, the aging resistance is further improved, and the product can maintain longer service life in the outdoor environment.

Description

technical field [0001] The invention relates to the technical field of rubber processing, in particular to an anti-aging electric insulating rubber. Background technique [0002] Insulating rubber products are made of rubber as the main material and added with related compounding agents. They have high elasticity but are difficult to conduct electricity. Due to the high elasticity and low conductivity of insulating rubber products, it has increasingly replaced traditional insulating materials such as ceramics, glass, wood, and pure water, and is widely used in electrical fields related to magnetic fields, electrical appliances, and circuits. Insulation protection. Natural rubber and most synthetic rubbers have good physical and mechanical properties and electrical properties at the same time, and are often used as electrical insulators for labor protection insulating gloves, insulating carpets, circuit wiring plugs, rubber insulating products for TV sets, and electrical tou...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/28C08L83/07C08L83/04C08K13/06C08K9/02C08K9/04C08K3/34C08K3/36C08K5/14C08K5/5419C08K3/22C08K5/09C08K5/40C08K5/39
CPCC08L23/16C08K2003/2296C08L2201/08C08L2205/025C08L2205/035C08L23/286C08L83/04C08K13/06C08K9/02C08K9/04C08K9/08C08K3/346C08K3/36C08K5/14C08K5/5419C08K3/34C08K3/22C08K5/09C08K5/40C08K5/39
Inventor 孔令翠
Owner HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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