Capacitor shell insulating coating

A technology of insulating coatings and capacitors, applied in coatings and other directions, can solve problems such as low insulation of coatings, hidden dangers of electrical products, and easy conduction, and achieve good aging resistance, improved scratch resistance, and good weather resistance.

Inactive Publication Date: 2018-03-16
蚌埠市嘉实机电设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the rapid development of society, all kinds of electrical products are developing in the direction of miniaturization, light weight, compactness and high efficiency. Therefore, electronic products with high power have developed rapidly, among which capacitors are the most widely used, and all kinds of electrical products are It is inseparable from the capacitor. When the capacitor is working, it needs to be connected to the current. The capacitor shell, especially the metal shell, when the capacitor is working, if the connecting wire is damaged, it is easy to conduct electricity and bring hidden dangers to electrical products. Therefore, for capacitors It is very necessary to use insulating paint for protection of the shell, but the existing paint is not high in insulation and cannot meet the needs of the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0014] An insulating coating for a capacitor shell, which is made of the following components in parts by weight: 80 cinnamaldehyde derivative modified water-based acrylic emulsions, 16 calcium carbonate, 5 pentaerythritol, 5 wood powder, 15 rubber powder, 5 talcum powder, and 2.5 pigments , Glass fiber 1, soybean starch 1, sodium lauryl sulfate 3, zeolite powder 4.2, sodium stearate 1.5, lauric acid diethanolamide 2, rosin resin 6, deionized water 70.

[0015] Further, the preparation method of the cinnamaldehyde derivative modified water-based acrylic emulsion is as follows: the cinnamaldehyde derivative is mixed with deionized water to prepare a cinnamaldehyde derivative solution with a mass fraction of 1.5%, and then added to the cinnamaldehyde derivative solution Nano-silica particles with a mass of 0.02% were treated with ultrasonic waves for 10 minutes to obtain a modified liquid, and the aqueous acrylic emulsion and the modified liquid were uniformly mixed at a volume r...

Embodiment ２

[0022] An insulating coating for a capacitor shell, which is made of the following components in parts by weight: 95% cinnamaldehyde derivative modified water-based acrylic emulsion, 25% calcium carbonate, 8% pentaerythritol, 8% wood powder, 17% rubber powder, 9% talcum powder, and 3.5% pigment , glass fiber 4, soybean starch 3, sodium lauryl sulfate 6, zeolite powder 6.2, sodium stearate 3.5, lauric acid diethanolamide 5, rosin resin 10, deionized water 85.

[0023] Further, the preparation method of the cinnamaldehyde derivative modified water-based acrylic emulsion is as follows: the cinnamaldehyde derivative is mixed with deionized water to prepare a cinnamaldehyde derivative solution with a mass fraction of 1.5%, and then added to the cinnamaldehyde derivative solution Nano-silica particles with a mass of 0.02% were treated with ultrasonic waves for 10 minutes to obtain a modified liquid, and the aqueous acrylic emulsion and the modified liquid were uniformly mixed at a vo...

Embodiment ３

[0030] An insulating coating for a capacitor shell, which is made of the following components in parts by weight: cinnamaldehyde derivative modified water-based acrylic emulsion 88, calcium carbonate 17, pentaerythritol 6, wood powder 7, rubber powder 16, talc powder 8, pigment 2.8 , glass fiber 3, soybean starch 5, sodium lauryl sulfate 5, zeolite powder 4.5, sodium stearate 1.8, lauric acid diethanolamide 3, rosin resin 8, deionized water 72.

[0031] Further, the preparation method of the cinnamaldehyde derivative modified water-based acrylic emulsion is as follows: the cinnamaldehyde derivative is mixed with deionized water to prepare a cinnamaldehyde derivative solution with a mass fraction of 1.5%, and then added to the cinnamaldehyde derivative solution Nano-silica particles with a mass of 0.02% were treated with ultrasonic waves for 10 minutes to obtain a modified liquid, and the aqueous acrylic emulsion and the modified liquid were uniformly mixed at a volume ratio of ...

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Abstract

The invention discloses a capacitor shell insulating coating which is prepared from cinnamyl aldehyde derivative modified waterborne acrylic acid emulsion, calcium carbonate, pentaerythritol, wood flour, rubber powder, talcum powder, pigments, glass fibers, soybean starch, lauryl sodium sulfate, zeolite powder, sodium stearate, lauroyl diethanolamide, rosin resin and deionized water. The preparedcapacitor shell insulating coating is nontoxic and environmentally friendly. After the insulating coating is sprayed on the surface of a capacitor shell, a coating film is high in hardness and strength, good in abrasion resistance, weather resistance and ageing resistance, tough and tensile and high in flexibility, and the insulating performance of the coating film can be greatly improved withoutreduction of mechanical properties of the coating film.

Description

technical field [0001] The invention relates to the technical field of electronic components, in particular to an insulating paint for capacitor shells. Background technique [0002] In the rapid development of society, all kinds of electrical products are developing in the direction of miniaturization, light weight, compactness and high efficiency. Therefore, electronic products with high power have developed rapidly, among which capacitors are the most widely used, and all kinds of electrical products are It is inseparable from the capacitor. When the capacitor is working, it needs to be connected to the current. The capacitor shell, especially the metal shell, when the capacitor is working, if the connecting wire is damaged, it is easy to conduct electricity and bring hidden dangers to electrical products. Therefore, for capacitors It is very necessary to use insulating paint for protection of the shell, but the existing paint is not high in insulation and cannot meet the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D5/25C09D7/61C09D7/63C09D7/65
CPCC09D133/00C08K2003/265C08K2201/011C08L2203/20C08L2205/035C09D5/00C08L93/04C08L21/00C08L97/02C08K7/14C08K3/34C08K5/098C08K3/36C08K3/26
Inventor 赵大鹏
Owner 蚌埠市嘉实机电设备制造有限公司
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