High-electric breakdown strength modified polyphenyl ether and preparation process thereof

Abstract

The invention relates to an organic macromolecule composite material, in particular to a high-electric breakdown strength modified polyphenyl ether and a preparation process thereof. The high-electric breakdown strength modified polyphenyl ether comprises the following components in percentage by weight: 30-80 percent of polyphenyl ether powder, 5-40 parts of polystyrene, 0-35 percent of ceramic micropowder, 0-35 percent of kaolin micropowder, 0.3-1.5 percent of antioxidant, 0.1-3.0 percent of toughening agent, 0.1-2.8 percent of coupling agent, 0.1-3.0 percent of high molecular weight silicone oil, 1-5 percent of compatilizer and 0.3-5.5 percent of other auxiliary agents. The high-electric breakdown strength modified polyphenyl ether and the preparation process thereof have well improved high-electric breakdown strength modification on the premise of maintaining the original advantages of the polyphenyl ether, convenient production purchase, domestic raw and auxiliary materials and production equipment and low production cost and raw material cost, thereby greatly improving competitiveness.

Description

technical field [0001] The invention relates to an organic polymer composite material, and more specifically relates to a modified polyphenylene ether with high electrical breakdown strength and a preparation method thereof. Background technique [0002] Polyphenylene ether is a thermoplastic engineering plastic that can withstand higher temperatures. It has a low relative density and a small water absorption rate. It can self-extinguish after leaving the fire and has good mechanical and electrical properties in a wide temperature range; glass The melting temperature is the highest among thermoplastics, and the creep resistance at high temperature is also the best among all thermoplastic engineering plastics; the molding shrinkage rate and thermal expansion coefficient are small, the size is stable, and it is suitable for the manufacture of precision products; it has excellent acid and alkali resistance and resistance The characteristics of chemical reagents; the hydrolytic ...

AI Technical Summary

Problems solved by technology

However, in the actual application process, it is found that the composite polyphenylene ether still has deficiencies when there is a higher electrical breakdown strength requirement, which greatly affects the use effect and application range, and these are exactly the problems to be solved by the present invention