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Butyl rubber sealant plug used for aluminum electrolytic capacitor

A technology of aluminum electrolytic capacitors and sealing rubber plugs, which is applied in the field of sealing rubber, can solve problems such as limited application range, aging resistance, and poor stability of chemical resistance, and achieve improved chemical resistance, good air tightness, and extended The effect of service life

Inactive Publication Date: 2017-01-18
NANTONG RUITAI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rubber stopper made of butyl rubber has excellent air tightness, but its aging resistance and chemical resistance are not stable, so its application range is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A kind of butyl rubber sealing rubber plug for aluminum electrolytic capacitor provided by the present embodiment is made from the following raw materials in parts by weight: 70 parts of butyl rubber 301, 20 parts of polyvinyl alcohol, 15 parts of hydroxyl silicone oil, 10 parts of MBS resin, 5 parts of phthalic dimethyl anhydride, 12 parts of sodium polymethacrylate, 5 parts of vinyltriethoxysilane, 14 parts of ethyl p-hydroxybenzoate, 11 parts of tetrabutylketoximosilane, 13 parts of butanol , 3 parts of boron nitride, 11 parts of talcum powder, 14 parts of polysorbate, and 15 parts of carbon black.

Embodiment 2

[0012] A kind of butyl rubber sealing rubber plug for aluminum electrolytic capacitor provided by the present embodiment is made from the following raw materials in parts by weight: 301 75 parts of butyl rubber, 25 parts of polyvinyl alcohol, 22 parts of hydroxyl silicone oil, 13 parts of MBS resin, 7 parts of phthalic dimethyl anhydride, 15 parts of sodium polymethacrylate, 7 parts of vinyltriethoxysilane, 17 parts of ethyl p-hydroxybenzoate, 12 parts of tetrabutylketoximosilane, 15 parts of butanol , 6 parts of boron nitride, 12 parts of talcum powder, 18 parts of polysorbate, and 17 parts of carbon black.

Embodiment 3

[0014] A kind of butyl rubber sealing rubber plug for aluminum electrolytic capacitor provided by the present embodiment is made from the following raw materials in parts by weight: 85 parts of butyl rubber, 30 parts of polyvinyl alcohol, 28 parts of hydroxyl silicone oil, 15 parts of MBS resin, 8 parts of phthalic dimethyl anhydride, 18 parts of sodium polymethacrylate, 10 parts of vinyltriethoxysilane, 20 parts of ethyl p-hydroxybenzoate, 14 parts of tetrabutylketoximosilane, 16 parts of butanol , boron nitride 9 parts, talcum powder 13 parts, polysorbate 22 parts, carbon black 20 parts.

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PUM

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Abstract

The invention discloses a butyl rubber sealant plug used for an aluminum electrolytic capacitor. The butyl rubber sealant plug comprises the following raw materials in parts by weight: 70-85 parts of butyl rubber 301, 20-30 parts of polyvinyl alcohol, 15-28 parts of hydroxyl silicone oil, 10-15 parts of MBS resin, 5-8 parts of phthalic dimethyl anhydride, 12-18 parts of sodium polymethacrylate, 5-10 parts of vinyltriethoxysilane, 14-20 parts of ethyl p-hydroxybenzoate, 11-14 parts of tetra-(methylethylketoxime)silane, 13-16 parts of butanol, 3-9 parts of boron nitride, 11-13 parts of powdered steatile, 14-22 parts of polysorbate, and 15-20 parts of carbon black. The butyl rubber sealant plug has good airtight performance, increases the chemical resistance, solvent resistance and aging resistance performances of the product, and can prolong the usage life of the capacitor on the electric appliance products.

Description

technical field [0001] The invention belongs to the field of sealing rubber, in particular to a butyl rubber sealing rubber plug for aluminum electrolytic capacitors. Background technique [0002] Capacitors are the most widely used and irreplaceable electronic components, and their output accounts for about 40% of all electronic components, among which aluminum electrolytic capacitors are the most important capacitor category. An aluminum electrolytic capacitor is made of an aluminum cylinder as the negative electrode, which is filled with a liquid electrolyte, and a bent aluminum strip is inserted as the positive electrode. The capacitor is called an aluminum electrolytic capacitor. Its core is made of anode aluminum foil, liner paper impregnated with electrolyte, cathode aluminum foil, natural oxide film, etc., and the core is impregnated with electrolyte and sealed with aluminum shell and rubber cover to form an electrolytic cell. capacitor. In general, aluminum electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08L29/04C08L83/06C08K13/02C08K5/12C08K5/5425C08K3/34C08K3/04H01G9/08
CPCC08L23/22C08L2203/20C08L2205/035H01G9/08C08L29/04C08L83/06C08K13/02C08K5/12C08K5/5425C08K3/34C08K3/04
Inventor 薛瑄武赵玉玲
Owner NANTONG RUITAI ELECTRONICS