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Polyphenylether material and preparation method thereof

A technology of polyphenylene ether and polyphenylene ether resin, which is applied in the field of polyphenylene ether materials and its preparation, and can solve the problems of reduced flame retardancy and high melt index

Active Publication Date: 2012-11-28
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem of improving the processing performance of polyphenylene ether material while reducing its flame retardancy in the prior art, the present invention discloses a polyphenylene ether material with a high melt index and excellent flame retardancy

Method used

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  • Polyphenylether material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0033] This example is used to illustrate the polyphenylene ether material disclosed in the present invention and its preparation method.

[0034] 69.5 parts by weight of poly(2,6-diethyl-1,4-phenylene) ether (viscosity at 25°C is 0.4 Pa·S), 5 parts by weight of SiC fiber, 5 parts by weight of silicone-acrylate- Styrene copolymer, 20 parts by weight of polyresorcinol-bis(diphenyl phosphate), 0.25 parts by weight of N445 and 0.25 parts by weight of N412S are added to the high mixer, stirred at 1000rpm / min for 3 minutes to obtain the mixed material Put the mixed material into the twin-screw extruder and melt and extrude it at 220-260°C. The feeding rate is 5rpm / min, and the host speed is 200rpm / min; the extruded polyphenylene ether material is passed through Water-cooled, air-dried, and finally pelletized by a pelletizer at 100 rpm / min to obtain polyphenylene ether material pellets S1.

Embodiment 2

[0036] This example is used to illustrate the polyphenylene ether material disclosed in the present invention and its preparation method.

[0037] 45 parts by weight of poly(2-ethyl-6-methyl-1,4-phenylene) ether (viscosity at 25°C is 0.4 Pa·S), 25 parts by weight of carbon fiber, 25 parts by weight of silicone-acrylate- Styrene copolymer, 4 parts by weight of triphenyl phosphate, 0.5 parts by weight of N445 and 0.5 parts by weight of N412S are added to the high mixer, and stirred at 200rpm / min for 10 minutes to obtain a mixed material; the mixed material is put into the double The screw extruder is melted and extruded at 240-280°C, the feeding rate is 40rpm / min, and the host speed is 400rpm / min; the extruded polyphenylene ether material is water-cooled, air-dried, and finally passed through a pelletizer Cut into pellets at 1200 rpm / min to obtain polyphenylene ether material pellets S2.

Embodiment 3

[0039] This example is used to illustrate the polyphenylene ether material disclosed in the present invention and its preparation method.

[0040] 65.4 parts by weight of poly(2,6-dimethyl-1,4-phenylene) ether (viscosity at 25°C is 0.4 Pa·S), 12 parts by weight of chopped glass fiber, 12 parts by weight of silicone-acrylate - Styrene copolymer, 10 parts by weight of bisphenol A bis(diphenyl) phosphate, 0.3 parts by weight of N445 and 0.3 parts by weight of N412S are added to the high mixer, and stirred at 800rpm / min for 5 minutes to obtain the mixed material; Put the mixed material into the twin-screw extruder and melt and extrude it at 240-270°C. The feeding rate is 27rpm / min, and the host speed is 335rpm / min; the extruded polyphenylene ether material is water-cooled , air-dried, and finally pelletized by a pelletizer at 800 rpm / min to obtain polyphenylene ether material pellets S3.

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Abstract

The invention provides a polyphenylether material and a preparation method thereof. The polyphenylether material comprises a main body resin, a toughening compound, a phosphatic organic substance and an assistant, wherein the main body resin is polyphenylether resin, and the toughening compound is an organosilicon-acrylate-styrene multipolymer. The polyphenylether material has the advantages of high melt index and excellent flame retardancy.

Description

technical field [0001] The invention relates to a polyphenylene ether material and a preparation method thereof, in particular to a polyphenylene ether material with flame-retardant properties and a preparation method thereof. Background technique [0002] Polyphenylene ether resin (PPO) is one of the five general-purpose engineering plastics in the world. With its excellent physical and mechanical properties, heat resistance and electrical insulation, as well as low moisture absorption, high strength, good dimensional stability, and creep resistance at high temperatures Excellent denaturation and other advantages are widely used in the fields of automobiles, electrical and electronic and office equipment / telecommunication. Moreover, because PPO resin has the characteristics of low relative density, light weight, and thin wire wall, it can be used in high temperature, high humidity, salt spray, grease and other corrosive environments. But at the same time, PPO has poor proc...

Claims

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Application Information

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IPC IPC(8): C08L71/12C08L25/14C08K7/10C08K7/06C08K5/523C08K7/14C08K7/08
Inventor 曾永斌王辉刘勇常德才
Owner BYD CO LTD
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