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High-insulation switch shell and preparation method thereof

A high-insulation and switching technology, applied in the field of high-insulation switch casing and its preparation, can solve problems such as life danger and user's physical harm

Inactive Publication Date: 2016-01-20
芜湖龙峰电器电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing electrical switch casings can meet most of the production needs, in the specific high-voltage field, the insulation resistance of the switch casings still needs to be improved, otherwise it is very easy to cause physical harm or even life to the user. danger

Method used

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preparation example Construction

[0012] The invention provides a method for preparing a high insulation switch housing, comprising:

[0013] 1) mixing phenolic resin, cresol-formaldehyde resin, cellulose propionate, talcum powder, calcium stearate, white carbon black, diethyl malonate and calcium phosphate to obtain a mixed product;

[0014] 2) extruding the kneaded material to obtain a high-insulation switch casing.

[0015] In the present invention, the molecular weight of phenolic resin and cresol-formaldehyde resin can be selected in a wide range, but in order to make the high insulation switch housing made have more excellent mechanical properties and insulation properties, preferably, the weight average of phenolic resin The molecular weight is 3000-5000, and the molecular weight of cresol-formaldehyde resin is 1500-4500.

[0016] In the present invention, the amount of each material can be selected in a wide range, but in order to make the high insulation switch casing made have more excellent mechani...

Embodiment 1

[0022] 1) phenolic resin (weight-average molecular weight is 4000), cresol-formaldehyde resin (weight-average molecular weight is 2500), cellulose propionate, talcum powder, calcium stearate, white carbon black, diethyl malonate and Calcium phosphate was mixed according to the weight ratio of 100:40:4:28:15:12:8:5, and then kneaded at 255°C for 1.75h to obtain a kneaded product;

[0023] 2) Extrude the kneaded material (die temperature is 212° C.) to obtain the high insulation switch housing A1.

Embodiment 2

[0025] 1) phenolic resin (weight-average molecular weight is 3000), cresol-formaldehyde resin (weight-average molecular weight is 1500), cellulose propionate, talcum powder, calcium stearate, white carbon black, diethyl malonate and Calcium phosphate is mixed according to the weight ratio of 100:30:3:22:12:9:4:3, and then kneaded at 250°C for 1.5h to obtain a kneaded product;

[0026] 2) Extrude the kneaded material (die temperature is 210° C.) to obtain the high insulation switch case A2.

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PUM

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Abstract

The invention discloses a high-insulation switch shell and a preparation method thereof. The preparation method comprises the steps that 1, mixing is performed on phenolic resin, cresol-formaldehyde resin, cellulose propionate, talcum powder, calcium stearate, white carbon black, diethyl malonate and calcium phosphate to prepare mixing matter; 2, extrusion molding is performed on the mixing matter to prepare the high-insulation switch shell. The high-insulation switch shell prepared through the method has the excellent mechanical property and anti-insulation property; in addition, the preparation method is simple, and the raw materials are easy to obtain.

Description

technical field [0001] The invention relates to an electrical switch, in particular to a high-insulation switch shell and a preparation method thereof. Background technique [0002] An electrical switch is one of the essential items in daily life, mainly including the switch housing and the components inside the housing. At present, the switch casing is mainly made of polymer, which has excellent mechanical properties. [0003] Although the existing electrical switch casings can meet most of the production needs, in the specific high-voltage field, the insulation resistance of the switch casings still needs to be improved, otherwise it is very easy to cause physical harm or even life to the user. danger. Contents of the invention [0004] The object of the present invention is to provide a high-insulation switch casing and a preparation method thereof. The high-insulation switch casing prepared by the method has excellent mechanical properties and insulation resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L61/08C08K13/02C08K3/34C08K3/36C08K5/098C08K3/32C08K5/11
Inventor 庄秀平
Owner 芜湖龙峰电器电子有限公司
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