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Polyphenyl ether alloy and preparation method thereof

A technology of polyphenylene ether and polyphenylene ether resin, which is applied in the field of polyphenylene ether alloy and its preparation, can solve the problem of damage to the mechanical properties of polyphenylene ether, heat resistance, dimensional stability, weather resistance, electrical insulation, and blending modification Problems such as large material content, to achieve the effect of good mechanical properties, good dimensional stability and high fluidity

Inactive Publication Date: 2012-04-11
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a polyphenylene ether alloy, which solves the problem that the content of blended modified materials in the polyphenylene ether alloy in the prior art is relatively large, which damages the excellent mechanical properties, heat resistance, and dimensional stability of the polyphenylene ether itself. , weather resistance, electrical insulation and other issues

Method used

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  • Polyphenyl ether alloy and preparation method thereof
  • Polyphenyl ether alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0045] The synthesis of embodiment 1 hyperbranched polystyrene

[0046] Wash the chloromethylated styrene with 5% sodium hydroxide and distilled water three times successively, and then dry with anhydrous sodium sulfate; distill the styrene under reduced pressure; wash the cuprous chloride with glacial acetic acid and methanol respectively, and vacuum dry. In three 250ml round bottom flasks, add chloromethylated styrene, styrene, cuprous chloride and 2.2′-bipyridine in sequence in different proportions, and place them in a constant temperature oil bath at 130°C under nitrogen protection. Internal polymerization, after the reaction, dissolve with butanone, then settle in ethanol, filter with suction, and dry to obtain three kinds of hyperbranched polystyrene, HBPS-1, HBPS-2, HBPS-3, chloromethylated benzene The molar ratios of ethylene and styrene are 1:20, 1:15, and 1:10, respectively.

[0047] Gel permeation chromatography (GPC) was used to measure molecular weight and mole...

Embodiment 2

[0050] The blending preparation of embodiment 2 polyphenylene ether and hyperbranched polystyrene

[0051] The polyphenylene ether alloy components of this embodiment are: 3kg PPO, 45g HBPS-2, 6g tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) pentaerythritol ester (referred to as antioxidant 1010), 6g tris(2,4-di-tert-butylphenyl) phosphite (abbreviated as antioxidant 168), 9g lubricant zinc stearate.

[0052] Wherein the viscosity of polyphenylene ether resin is 0.55Pa s, Japan Asahi Kasei Company; The mol ratio of chloromethylated styrene and styrene in hyperbranched polystyrene HBPS-2 is 1: 15, is synthesized by laboratory; Oxidant 1010, antioxidant 168, BASF, Germany; lubricant calcium stearate, Jiangsu Tyrek Chemical Co., Ltd.

[0053] The synthesized powdery HBPS-2 was dried in a vacuum drying room at 90°C for 8 hours. Using the melt blending method, add dry PPO into the internal mixer, banbury at 280°C for 10 minutes, then add dry HBPS-2, antioxidant 1010,...

Embodiment 3

[0055] The blending preparation of embodiment 3 polyphenylene ether and hyperbranched polystyrene

[0056] The synthesized powdered HBPS-1, HBPS-2, and HBPS-3 were dried in a vacuum drying room at 90°C for 8 hours. Using the melt blending method, add the dry PPO into the internal mixer, banbury at 260 ° C for 10 minutes, and then dry the HBPS-1, HBPS-2, and HBPS-3 at 0.5, 1.0, 1.5, 2.0, and 2.5 , 3.0% by weight, and 0.2% antioxidant 1010, 0.2% antioxidant 168, and 0.3% lubricant calcium stearate were added to PPO, mixed for 5 minutes, discharged, and granulated to obtain 18 kinds of polyphenylene ether alloys. The blended and granulated pellets were injection molded to obtain notched impact, tensile, bending, and thermal deformation temperature specimens for mechanical and thermal performance tests; the pellets were used to measure the melt flow index. After testing, the properties of the polyphenylene ether alloy are shown in Table 2.

[0057] Table 2 Performance data of po...

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Abstract

The invention discloses a polyphenyl ether alloy, wherein the composite is composed of the following components based on parts by weight: 100 parts of polyphenyl ether resin, 0.5-3 parts of high branched polystyrene, 0.2-0.4 parts of anti-oxidant and 0.1-0.3 parts of lubricating agent; the high branched polystyrene is prepared from styrene monomer and chloromethylation styrene monomer by polymerization, wherein the mole ratio of the styrene monomer to the chloromethylation styrene monomer is (10-20): 1. The composite is advantaged by high mobility, high heat resistance, good mechanical property, good dimension stability, weather resistance and so on, and is suitable for fields like machine manufacturing, automobile industry, electronics and office equipment.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a polyphenylene ether alloy and a preparation method thereof, in particular to a polyphenylene ether alloy formed by polyphenylene ether resin and hyperbranched polystyrene and a preparation method thereof. Background technique [0002] Due to its excellent mechanical properties, heat resistance, good dimensional stability, weather resistance, and electrical insulation, polyphenylene ether has been widely used in machinery manufacturing, automobile industry, electronic appliances, and office equipment. Ether has a high relative molecular weight, high melt viscosity, and poor fluidity, making it difficult to form and process, restricting the size and type of products, as well as the selection and use of equipment, so it is often blended with materials with good fluidity to make alloys and then used , so that it has free-flowing properties at high temperatures in various processes su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L25/08C08K13/02C08K5/134C08K5/526C08K5/13
Inventor 李爱英常杰云袁荣鑫胡昕陈旸
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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