Voltage sensitive material, preparation and application thereof

Abstract

The invention provides a voltage sensitive material, which is prepared by compounding the raw materials comprising the following components in volume percent: 30-70% of organic high polymer; 2-20% of conducting particles and 10-50% of semiconductor particles. The voltage sensitive material can be applied in preparing voltage-sensitive elements.

Description

technical field [0001] The invention relates to polymer materials, in particular to voltage sensitive materials and their preparation and application. Background technique [0002] Functional polymer materials are currently a hot spot in material science research, and polymer voltage-sensitive materials with voltage-sensitive properties are among the best. So far, the academic and industrial circles are actively researching and developing them. The so-called high molecular voltage sensitive materials are usually composed of high molecular polymers, conductive particles, insulating particles and semiconductor particles. The high molecular polymer can be a thermoplastic polymer, such as polyolefin, polyvinylidene fluoride, polyamide, polyester, etc., or a thermosetting polymer, such as epoxy resin, silicone resin, phenolic resin, polyamide imide resin, etc. Conductive particles can be silver, copper, nickel, aluminum, graphite, carbon black and other materials. Insulating p...

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Problems solved by technology

However, at present, the conductive particles used in polymer voltage sensitive materials are metal materials such as nickel and aluminum, which are prone to surface oxidation, which affects the stability of the composite material and causes an increase in the trigger voltage.

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