Polyphenyl ether/polyamide alloy material and preparation method thereof

Abstract

The invention discloses a polyphenyl ether/polyamide alloy material, which is composed of the following components in percentage by weight: 55 to 70% of polyphenyl ether PPO, 20 to 35% of polyamide PA66, 3 to 10% of compatilizer, 2 to 10% of flexibilizer, 1 to 10% of contraction rate conditioning agent, and 0.3 to 5% of auxiliary agent. All components are prepared in a proper ratio so as to generate an ideal synergetic effect to enable the composite material to have a super low contraction rate and a high toughness, so the composite material has a size stability and excellent comprehensive property, and is suitable for injection moulding of parts of automobiles or precision electronic and electric appliances. The invention also discloses a preparation method of the polyphenyl ether/polyamide alloy material. The method can be achieved by a conventional double-screw extruder through controlling the material feeding position and temperature, has the advantages of simple preparation, easy control, easy application to industrial mass production, and has a vast application prospect.

Description

technical field [0001] The invention relates to the field of polyphenylene ether / polyamide alloy materials, in particular to an ultra-low shrinkage and high-toughness polyphenylene ether / polyamide alloy material and a preparation method thereof. Background technique [0002] Polyphenylene ether (PPO or PPE) resin has good heat resistance, dimensional stability and hydrolysis resistance. Polyamide has excellent solvent resistance and good processability, but polyamide has poor heat resistance and dimensional stability. Alloying polyphenylene ether and polyamide can improve the poor dimensional stability and moisture absorption of polyamide, and polyamide can improve the processing performance, chemical resistance and temperature resistance of polyphenylene ether resin. With the development of the automobile industry, light weight and energy saving, replacing steel with plastic has become the theme of the development of automobile materials. Polyphenylene ether / polyamide all...

AI Technical Summary

Problems solved by technology

This technical solution improves the interfacial strength through the compound containing isocyanate group of the compatibilizer, and the comprehensive performance of the composition is excellent, especially the impact resistance and heat resistance are good, but t

Images