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Preparation method of composite material for high-voltage-resisting protection plate

A composite material and protection board technology, applied in the field of composite material preparation, to achieve the effect of simple process

Inactive Publication Date: 2018-05-25
天津华诚华丰电工器材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 40.5KV high-voltage inflatable cabinet has always been a vacancy. The main reason is that the protective plate adapted to the high-voltage inflatable cabinet needs to withstand high voltage. The high voltage of the 40.5KV inflatable cabinet is 98,000 volts, and the partial discharge can reach below 0.1, while the high-voltage resistant 40.5KV Composite materials are still a vacancy in the market at this stage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A composite material for a high-pressure resistant protective plate, which is composed of glass fiber mat and RTM unsaturated resin, and the weight ratio of the glass fiber mat and RTM unsaturated resin is 3:2.

[0015] The preparation method of the composite material for the above-mentioned high-voltage protective plate, the specific steps are as follows:

[0016] (1) Obtain glass fiber felt and RTM unsaturated resin by recipe amount for subsequent use;

[0017] (2) After mixing glass fiber felt and RTM unsaturated resin, it is molded under the condition of 130°C to obtain the product. The obtained composite material has passed the tracking resistance test (refer to "GB / T 4207-2007 Measurement Method for Comparative Tracking Index and Tracking Resistance Index of Solid Insulating Materials under Humid Conditions"), and the 5 test points can withstand Hold 70 drops of solution without forming a 0.5A conductive path, and have outstanding tracking resistance.

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Abstract

The invention provides a preparation method of a composite material for a high-voltage-resisting protection plate. The composite material is prepared by mixing a glass fiber felt and RTM (Resin Transfer Molding) unsaturated resin according to the weight ratio of 3 to (1 to 3) and carrying out mold pressing molding at 130 DEG C; the obtained composite material has good anti-creepage and high-voltage-resisting properties and plays a key role of propelling high-voltage switch markets in the future; the preparation method is simple and is suitable for requirements of large-scale industrial production.

Description

technical field [0001] The invention relates to the field of production of high-voltage protective plates, in particular to a method for preparing composite materials used for high-voltage protective plates. Background technique [0002] At present, the high-voltage inflatable cabinets in the domestic market are 12KV and 24KV. The 40.5KV high-voltage inflatable cabinet has always been a vacancy. The main reason is that the protective plate adapted to the high-voltage inflatable cabinet needs to withstand high voltage. The high voltage of the 40.5KV inflatable cabinet is 98,000 volts, and the partial discharge can reach below 0.1, while the high-voltage resistant 40.5KV Composite materials are still a vacancy in the market at this stage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for preparing a composite material used for a high-pressure protective plate. [0004] In order to solve the problems of...

Claims

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Application Information

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IPC IPC(8): C08L101/02C08K7/14B29C70/48
CPCC08K7/14B29C70/48C08L101/02
Inventor 程小锋
Owner 天津华诚华丰电工器材股份有限公司
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