Polyphenyl ether resin composite with stable color

Abstract

The invention discloses a polyphenyl ether resin composite with stable color and a preparation method thereof. The polyphenyl ether resin composite with stable color consists of the following components in percentage by weight: 20 to 90 percent of polyphenyl ether, 5 to 50 percent of styrene resin, 0 to 10 percent of impact modifier, 0.5 to 5 percent of synthesized molecular sieve, 0.1 to 1 percent of heat stabilizer, and 0 to 20 percent of fire retardant; the synthesized molecular sieve is aluminosilicate of which the molecular formula is M2 / nO.Al2O3.xSiO2.yH2O, wherein M is metal ion, n is equal to 1 or 2, x is equal to 0.1 to 0.3, and y is equal to 0 to 60; and the effective aperture of the synthesized molecular sieve is 0.1 to 60 nanometers, and the particle size of the synthesized molecular sieve is 0.1 to 20 mu m. The hydrophilic synthesized molecular sieve is added into polyphenyl ether so that the obtained polyphenyl ether resin composite has the characteristic that the color of the polyphenyl ether resin composite hardly changes under the actions of ultraviolet light, and high temperature (80 to 120 DEG C) baking and the like, and the polyphenyl ether resin composite is easy to prepare, and low in cost and has very high actual applicability.

Description

technical field [0001] The invention belongs to the field of engineering plastics, in particular to a polyphenylene ether resin composition with stable color. Background technique [0002] Polyphenylene ether has excellent mechanical properties, electrical properties, heat resistance, dimensional stability and weather resistance, and is widely used in electrical appliances, office supplies, auto parts and other industries. Due to the high melt viscosity of polyphenylene ether resin, it is difficult to process, which requires the addition of polystyrene resin to improve the fluidity of polyphenylene ether to achieve good molding processability. However, during the synthesis of polyphenylene ether, traces of low-molecular-weight phenols, such as biphenol, will remain, which makes the modified polyphenylene ether product appear red with the increase of temperature during processing. Problems that affect the use of light-colored products. [0003] US5210119 improves the color ...

AI Technical Summary

Problems solved by technology

Hydrophobic molecular sieves are usually synthesized using organic amine templates, and the preparation process is complicated, so they are expensive and their industrial applications are limited.

At present, there is no public disclosure of the use of hydrophilic molecular sieves to solve the problem of color stability of polyphenylene ether materials

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