Flame-retardant and high-temperature composite plastic for resistor shell

Abstract

The invention relates to flame-retardant and high-temperature composite plastic for a resistor shell. The composite plastic comprises the following components in parts by weight: 50-60 parts of polybutadiene rubber, 40-50 parts of vinylidene fluoride, 15-20 parts of trichloroethylene, 15-20 parts of polyamide resin, 15-20 parts of bisphenol A type epoxy resin, 10-15 parts of polycarbonate, 8-12 parts of polytetrafluoroethylene, 10-15 parts of magnesium hydroxide, 3-5 parts of mullite powder, 2-5 parts of graphite powder and 0.5-1.5 parts of an antioxidant. By virtue of a reasonable formula andproportion, the components are supplemented with each other to generate a synergistic effect, so that the composite plastic has the characteristics of high strength, good insulativity, good flame retardance, high heat dissipation speed, good high temperature resistance, strong ageing resistance and low cost, and the service life of a product is prolonged; and the preparation method is simple andlow in production cost.

Description

technical field [0001] The invention relates to the technical field of production of electronic components, in particular to a flame-retardant and high-temperature-resistant composite plastic for resistor shells. Background technique [0002] Resistors are the most used components in all electronic circuits. The main physical feature of resistors is to convert electric energy into heat energy. It is widely used in circuits. At present, the demand for resistors in the electronics industry is increasing day by day, and even a situation of short supply. The types of resistors are different because of the different fields of use. They are also different, but at present, the resistors on the market wrap the wound wires through the shell and seal them, and then extend the wires from both ends. The tighter the resistance, the greater the resistance, the looser the winding, and the smaller the resistance. Since the use of resistance in various industries is different, the requireme...

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Problems solved by technology

The main physical characteristic of resistors is to convert electric energy into heat energy. It is widely used in circuits. At present, the demand for resistors in the electronics industry is increasing day by day, and even a situation of short supply. The types of resistors are different because of the different fields of use. They are also different, but at present, the resistors on the market are wrapped and sealed with the wound wires through the shell, and then the wires are protruded from both ends. The tighter the resistance, the greater the resistance, the looser the winding, and the smaller the resistance. Since the use of resistance in various industries is different, the requirements for its structure are also extremely strict. During the production process of small resistors, the surface of the resistor will be glazed. Because of the brittleness of the glaze, it is easy to be damaged by collision and breakage during storage, transportation and use, and there is a lot of loss, and the production process of the glaze is complicated and the production cost is high.

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