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Sealing rubber for impact-resistant high-voltage capacitors

A high-voltage capacitor and impact-resistant technology, which is applied in the field of capacitors, can solve the problems of affecting the service life of high-voltage capacitors and poor impact strength, and achieve excellent physical and chemical properties, good air tightness, and stable performance.

Inactive Publication Date: 2018-07-10
合肥市易远新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the oil hole seal is generally made of rubber material, which has good plasticity and good sealing effect, and is widely used. However, the current rubber products have the problem of poor impact resistance, which affects the service life of high-voltage capacitors.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A sealing rubber for impact-resistant high-voltage capacitors, the raw materials of which include: 55 kg of tetrapropylene fluorine rubber, 35 kg of polyphenylene sulfide, 12 kg of poly-p-phenylene terephthalamide, 3 kg of cyclohexanone peroxide, and trimethylolpropane Trimethacrylate 0.1kg, chitosan grafted nanocellulose 40kg, nano diatomite 8kg, hollow glass microspheres 18kg, silane coupling agent 0.5kg, stearic acid 2kg, magnesium oxide 0.2kg, dimethyl Silicone oil 1.2kg, vaseline 2kg, anti-aging agent 3kg.

Embodiment 2

[0015] A sealing rubber for shock-resistant high-voltage capacitors, the raw materials of which include: 76kg of tetrapropylene fluoride rubber, 24kg of polyphenylene sulfide, 20kg of poly-p-phenylene terephthalamide, 1kg of cyclohexanone peroxide, and trimethylolpropane Trimethacrylate 0.6kg, chitosan grafted nanocellulose 30kg, nano diatomite 15kg, hollow glass microspheres 12kg, silane coupling agent 1.2kg, stearic acid 1kg, magnesium oxide 1kg, simethicone 0.2kg, vaseline 4kg, anti-aging agent 1kg.

Embodiment 3

[0017] A sealing rubber for shock-resistant high-voltage capacitors, the raw materials of which include: 70kg of tetrapropylene fluoride rubber, 32kg of polyphenylene sulfide, 16kg of poly-p-phenylene terephthalamide, 2kg of cyclohexanone peroxide, and trimethylolpropane Trimethacrylate 0.2kg, chitosan grafted nanocellulose 34kg, nano diatomite 9kg, hollow glass microspheres 15kg, silane coupling agent 0.8kg, stearic acid 1.5kg, magnesium oxide 0.4kg, dimethyl Base silicone oil 1kg, Vaseline 2.3kg, anti-aging agent 2kg.

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PUM

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Abstract

The invention discloses a sealing rubber for impact-resistant high-voltage capacitors, wherein the raw materials comprise, by weight, 55-76 parts of Tetrafluoroethylene-propylene Rubber, 24-35 parts of Polyphenylene sulfide, 12-20 parts of poly-p-phenylene terephthamide, 1-3 parts of cyclohexanone peroxide, 0.1-0.6 part of Trimethylolpropane trimethacrylate, 30-40 parts of chitosan grafted nanometer cellulose, 8-15 parts of nanometer diatomaceous earth, 12-18 parts of hollow glass micro-beads, 0.5-1.2 parts of a silane coupling agent, 1-2 parts of stearic acid, 0.2-1 part of magnesium oxide, 0.2-1.2 parts of dimethyl silicone oil, 2-4 parts of vaseline, and 1-3 parts of an anti-aging agent. According to the present invention, the sealing rubber has advantages of uniform cross-linking, highair tightness, good thermal stability, high impact strength, good electrical insulation performance and prolonged service lift, and can meet the powerful sealing force requirements of high-voltage capacitors on sealing rubbers.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a sealing rubber for shock-resistant high-voltage capacitors. Background technique [0002] During the production process of the high-voltage capacitor, an oil injection hole is usually provided on the casing, and oil is injected into the interior through the oil injection hole. After the oil is filled, a sealing cap is used to seal the oil injection hole. At present, the oil hole seal is generally made of rubber material, which has good plasticity and good sealing effect, and is widely used. However, the current rubber products have the problem of poor impact resistance, which affects the service life of high-voltage capacitors. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a sealing rubber for impact-resistant high-voltage capacitors, which has uniform cross-linking, high air tightne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L81/02C08L77/06C08L87/00C08K13/04C08K3/36C08K7/28C08K5/09C08K3/22C08K5/54
CPCC08K2003/222C08K2201/011C08L27/18C08L2203/20C08L2205/035C08L81/02C08L77/06C08L87/005C08K13/04C08K3/36C08K7/28C08K5/09C08K3/22C08K5/54
Inventor 黄洁
Owner 合肥市易远新材料有限公司