A flame-retardant gas-generating polyamide arc-extinguishing composite material and its preparation method and application

A composite material and polyamide technology, which is applied in the preparation of miniature circuit breakers, flame-retardant gas-producing polyamide arc-extinguishing composite materials and its preparation field, can solve the problem of less arc-extinguishing materials, and achieve excellent mechanical properties and gas pressure Obvious, the effect of lowering the thermal decomposition temperature
CN104559169BActive Publication Date: 2017-05-03中广核俊尔(浙江)新材料有限公司 +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中广核俊尔(浙江)新材料有限公司
Publication Date
2017-05-03

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Abstract

The invention discloses an inflaming retarding aerosis polyamide arc extinguishing composite material which is prepared from the following raw materials in percentage by weight: 20.0-85.0% of polyamide, 5.0-25.0% of polyamide prepolymer, 5.0-15.0% of arc-quenching metallic compound, 0.0-15.0% of arc-quenching water absorbing compound, 10.0-20.0% of arc-quenching aerosis inflaming retarding compound, 0.5-2.0% of an aerosis accelerator and 0.0-5.0% of a processing aid. The inflaming retarding aerosis polyamide arc extinguishing composite material not only has a good inflaming retarding property but also can generate gas to assist arc extinction, has an excellent mechanical property, and is especially suitable for preparing miniature circuit breakers. The invention also provides a method for preparing the inflaming retarding aerosis polyamide arc extinguishing composite material. The method can be realized by adopting an existing twin-screw extruder; the preparation is simple and liable to industrial mass production, with broad application prospects.
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Description

technical field

[0001] The invention relates to the field of polymer materials, in particular to a flame-retardant gas-generating polyamide arc-extinguishing composite material, a preparation method thereof, and an application in the preparation of miniature circuit breakers. Background technique

[0002] The breaking capacity of the miniature circuit breaker is an important indicator of product performance. The level of breaking capacity and the effect are closely related to the level of arc extinguishing performance of the product. With the diversified development of end customers, the requirements for breaking capacity of products are getting higher and higher. For this reason, there are more and more researches on the arc extinguishing system of circuit breakers.

[0003] There are mainly the following arc extinguishing methods for circuit breakers: quick pull arc extinguishing method, cooling arc extinguishing method, arc blowing arc extinguishing method, long arc arc e...

Claims

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