Electroconductive plastics and method of producing the same

Abstract

The invention relates to a conductive plastic which consists of the following components by mass percentages: 30 percent to 70 percent of polymer matrix, 15 percent to 50 percent of glass fiber, 10 percent to 35 percent of conductive carbon black and 1 percent to 5 percent of modifier. The invention also provides a preparation method of the conductive plastic. The conductive plastic comprises the glass fiber and the conductive black, wherein, the glass fiber can enhance the mechanical performance of the conductive plastic, improve the shrinkage of the plastic, eliminate static electricity effectively and have good high temperature resistance simultaneously.

Description

technical field [0001] The invention relates to the field of conductive materials, in particular to a conductive plastic for eliminating static electricity and a preparation method thereof. Background technique [0002] At present, the traditional conductive / antistatic plastic is to add carbon fiber, carbon black or antistatic agent to the resin. Among them, the cost of carbon fiber is high, the shrinkage rate of carbon black material is large, the product size is unstable, the antistatic agent is not resistant to high temperature, and the conductivity changes with the environment. These injection-molded products have the characteristics of conduction and static elimination, and can be applied to the packaging of IC packaging plastic trays and other electronic components. [0003] There are also some composite conductive plastics, most of which are made by blending metal fibers, metal powders, etc. with various engineering plastic resins. The conductive plastic filled wi...

AI Technical Summary

Problems solved by technology

However, during the processing and molding process, due to the mechanical movement of the plastic molding equipment, the metal fibers are severely damaged and the electrical conductivity of the product is greatly reduced, so the molding processing technology is demanding.

However, metal powder is easily oxidized during composite processing and affects the electrical conductivity. Usually, it is necessary to increase the filling amount, resulting in a decrease in the tensile strength of the plastic.