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Anti-aging capacitor plastic shell and preparation method thereof

A capacitor and anti-aging technology, applied in the field of capacitors, can solve the problems affecting the use of capacitors, increasing the difficulty of processing, and easy water absorption, etc., to achieve the effects of ensuring stability and life, improving the degree of crosslinking, and enhancing mechanical properties

Inactive Publication Date: 2017-05-17
宁国市大荣电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former shell is bulky, and the cost is high, easy to rust, and it is very easy to cause shell breakdown and fire phenomenon, which is gradually being replaced by ABS material
Although the ABS material shell is light in weight, the wall thickness of the shell made of this material must be more than 5cm, otherwise the deformation resistance temperature is low and it is easy to deform, but when the wall is too thick, the processing difficulty increases and there are many waste products during production. , the pass rate is low, which increases the production cost. At the same time, the ABS material is easy to absorb water, resulting in a decrease in the insulation performance of the capacitor case and a decrease in the dielectric strength.
In addition, the aging resistance of the shell is also an important indicator to measure the overall performance of the capacitive. Capacitors will accelerate aging due to their own heat generation during operation, and they will inevitably be affected by light, heat and other conditions in outdoor environments. , and the accumulation of the aging process will eventually affect the appearance and mechanical properties of the shell, which in turn affects the use of capacitors. Therefore, it is particularly necessary to improve the aging resistance of the shell

Method used

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  • Anti-aging capacitor plastic shell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An aging-resistant capacitor molded case is made of the following substances in parts by weight:

[0019] 80 parts of polycarbonate, 20 parts of polyacrylate, 6 parts of polyvinyl chloride, 3 parts of polyimide, 6 parts of titanium dioxide, 5 parts of zinc oxide, 3 parts of kaolin, 1 part of defoamer, 2 parts of dispersant, 3 parts of isopropanol, 1 part of sodium hexametaphosphate, 0.5 parts of magnesium stearate, 0.5 parts of sodium p-toluenesulfinate, 0.5 parts of 2-undecyl imidazoline, 1 part of s-triazine, 2 parts of alkyl Phenol polyoxyethylene ether.

[0020] Further, the defoamer is polyoxyethylene polyoxypropylene pentaerythritol ether.

[0021] Further, the dispersant is triethylhexyl phosphoric acid.

[0022] A preparation method for an aging-resistant capacitor plastic case, comprising the steps of:

[0023] (1) First, ball mill the titanium dioxide until the particle size is 180-200 μm for later use; grind the zinc oxide until the particle size is 80-100...

Embodiment 2

[0029] An aging-resistant capacitor molded case is made of the following substances in parts by weight:

[0030] 85 parts of polycarbonate, 23 parts of polyacrylate, 8 parts of polyvinyl chloride, 4 parts of polyimide, 7 parts of titanium dioxide, 6 parts of zinc oxide, 4 parts of kaolin, 1.5 parts of defoamer, 2.5 parts of dispersant, 3.5 parts of isopropanol, 1.5 parts of sodium hexametaphosphate, 0.8 parts of magnesium stearate, 0.7 parts of sodium p-toluenesulfinate, 0.7 parts of 2-undecyl imidazoline, 1.5 parts of s-triazine, 2.5 parts of alkyl Phenol polyoxyethylene ether. All the other method steps are the same as in Example 1.

Embodiment 3

[0032] An aging-resistant capacitor molded case is made of the following substances in parts by weight:

[0033] 90 parts of polycarbonate, 25 parts of polyacrylate, 10 parts of polyvinyl chloride, 5 parts of polyimide, 8 parts of titanium dioxide, 7 parts of zinc oxide, 5 parts of kaolin, 2 parts of defoamer, 3 parts of dispersant, 4 parts of isopropanol, 2 parts of sodium hexametaphosphate, 1 part of magnesium stearate, 1 part of sodium p-toluenesulfinate, 1 part of 2-undecyl imidazoline, 2 parts of s-triazine, 3 parts of alkyl Phenol polyoxyethylene ether. All the other method steps are the same as in Example 1.

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Abstract

The invention discloses an anti-aging capacitor plastic shell, and belongs to the technical field of capacitors. The plastic shell is prepared from the following materials: polycarbonate, polyacrylic ester, polyvinyl chloride, polyimide, titanium dioxide, zinc oxide, kaolin, a defoaming agent, dispersant, isopropanol, sodium hexametaphosphate, magnesium stearate, sodium p-toluenesulfinate, 2-undecylimidazoline, s-triazine and alkylphenol polyoxyethylene. The plastic shell has the advantages of high overall strength, high dielectric strength, excellent temperature resistance and strong aging resistance, ensures stability and service life of capacitors, and has a good popularization value.

Description

technical field [0001] The invention belongs to the technical field of capacitors, and in particular relates to an aging-resistant capacitor plastic case and a preparation method thereof. Background technique [0002] Most existing power capacitor casings are usually made of stainless steel or ABS engineering plastics. The former shell is bulky, and the cost is high, easy to rust, and it is very easy to cause shell breakdown and fire phenomenon, which is gradually being replaced by ABS material. Although the ABS material shell is light in weight, the wall thickness of the shell made of this material must be more than 5cm, otherwise the deformation resistance temperature is low and it is easy to deform, but when the wall is too thick, the processing difficulty increases and there are many waste products during production. , the pass rate is low, which increases the production cost. At the same time, the ABS material is easy to absorb water, resulting in a decrease in the ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L33/04C08L27/06C08L79/08C08K13/02C08K3/22C08K3/34C08K5/098C08K3/32
CPCC08L69/00C08L2201/08C08L2203/20C08L2205/035C08L33/04C08L27/06C08L79/08C08K13/02C08K2003/2241C08K2003/2296C08K3/346C08K5/098C08K3/32
Inventor 周继平
Owner 宁国市大荣电器有限公司
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