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Polyphenyl ether/high impact polystyrene composition with low linear expansion coefficient and preparation method thereof

A low linear expansion, polystyrene technology, applied in the field of materials, can solve the problems of difficulty in meeting the requirements of assembly of parts, large linear expansion coefficient, difficult molding and processing, etc., and achieves increased spiral flow, high dielectric strength, and reduced linearity. Effect of Expansion Coefficient

Pending Publication Date: 2020-11-27
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, pure PPO resin has poor melt fluidity and difficult molding process. It needs to be modified by blending high-impact polystyrene (HIPS) to improve its molding processability, and the PPO / HIPS composition has linear expansion. The coefficient (CLTE) is large and the dimensional stability is poor, especially when it is used for large parts in the automotive field, it is often difficult to meet the requirements for part assembly

Method used

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  • Polyphenyl ether/high impact polystyrene composition with low linear expansion coefficient and preparation method thereof
  • Polyphenyl ether/high impact polystyrene composition with low linear expansion coefficient and preparation method thereof
  • Polyphenyl ether/high impact polystyrene composition with low linear expansion coefficient and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0088] This embodiment provides a low linear expansion coefficient polyphenylene ether / high impact polystyrene composition, which is prepared from the following raw materials in parts by weight:

[0089] 80 parts of polyphenylene ether resin,

[0090] High impact polystyrene resin 10 parts,

[0091] 10 parts mica powder,

[0092] The sum of the parts by weight of polyphenylene ether resin, high-impact polystyrene resin and mica powder is 100 parts,

[0093]

[0094] The preparation method of the above-mentioned low linear expansion coefficient polyphenylene ether / high-impact polystyrene composition comprises the following steps:

[0095] (1) Dry the polyphenylene ether resin and high-impact polystyrene resin at a temperature of 110° C. for 4 hours, then cool, and place the cooled polyphenylene ether resin, high-impact polystyrene resin and the Ethylene-maleic anhydride-glycidyl methacrylate copolymer, 2,2'-(1,3-phenylene)-bisoxazoline, N,N'-bis(2,2,6,6 -Tetramethyl-4-pi...

Embodiment 2

[0100] This embodiment provides a low linear expansion coefficient polyphenylene ether / high impact polystyrene composition, which is prepared from the following raw materials in parts by weight:

[0101] 40 parts of polyphenylene ether resin,

[0102] High impact polystyrene resin 30 parts,

[0103] 30 parts of mica powder,

[0104] The sum of the parts by weight of polyphenylene ether resin, high-impact polystyrene resin and mica powder is 100 parts,

[0105]

[0106] The preparation method of the above-mentioned low linear expansion coefficient polyphenylene ether / high-impact polystyrene composition comprises the following steps:

[0107] (1) After drying the polyphenylene ether resin and high-impact polystyrene resin at a temperature of 80° C. for 8 hours, cooling, the cooled polyphenylene ether resin, high-impact polystyrene resin and the Ethylene-maleic anhydride-glycidyl methacrylate copolymer, 2,2'-(1,3-phenylene)-bisoxazoline, N,N'-bis(2,2,6,6 -Tetramethyl-4-pip...

Embodiment 3

[0112] This embodiment provides a low linear expansion coefficient polyphenylene ether / high impact polystyrene composition, which is prepared from the following raw materials in parts by weight:

[0113] 70 parts of polyphenylene ether resin,

[0114] High impact polystyrene resin 15 parts,

[0115] 15 parts mica powder,

[0116] The sum of the parts by weight of polyphenylene ether resin, high-impact polystyrene resin and mica powder is 100 parts,

[0117]

[0118] The preparation method of the above-mentioned low linear expansion coefficient polyphenylene ether / high-impact polystyrene composition comprises the following steps:

[0119] (1) After drying the polyphenylene ether resin and the high-impact polystyrene resin at a temperature of 100°C for 4 hours, cooling, the cooled polyphenylene ether resin, high-impact polystyrene resin and the Ethylene-maleic anhydride-glycidyl methacrylate copolymer, 2,2'-(1,3-phenylene)-bisoxazoline, N,N'-bis(2,2,6,6 -Tetramethyl-4-pip...

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Abstract

The invention relates to a low linear expansion coefficient polyphenyl ether / high impact polystyrene composition and a preparation method thereof. The polyphenyl ether / high impact polystyrene composition is prepared from the following raw materials: polyphenyl ether resin, high-impact polystyrene resin, mica powder, flat glass fibers, calcium sulfate whiskers, a titanate coupling agent, an ethylene-maleic anhydride-glycidyl methacrylate copolymer, 2, 2 '-(1, 3-phenylene)-dioxazoline, N, N'-bis (2, 2, 6, 6-tetramethyl-4-piperidyl)-1, 3-benzenedicarboxamide and bis (2, 6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate. The polyphenyl ether / high-impact polystyrene composition has excellent mechanical properties and processability, low linear expansion coefficient and low warping degree, and can be applied to the fields of automobiles, aviation, electronics and electrics, household appliances and the like.

Description

technical field [0001] The invention relates to the field of materials, in particular to a low linear expansion coefficient polyphenylene ether / high impact polystyrene composition and a preparation method thereof. Background technique [0002] The existing automobile industry requires the assembly gap between different material parts to be as small as possible and has high dimensional stability, which requires polymer materials to have low warpage and linear expansion coefficient. Polyphenylene ether (PPO) has the advantages of excellent mechanical properties, heat resistance, electrical insulation, and low creep at high temperatures. At the same time, PPO has low density and hygroscopicity, high strength, and good dimensional stability. However, pure PPO resin has poor melt fluidity and difficult molding process. It needs to be modified by blending high-impact polystyrene (HIPS) to improve its molding processability, and the PPO / HIPS composition has linear expansion. The c...

Claims

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Application Information

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IPC IPC(8): C08L71/12C08L51/04C08L23/08C08K13/06C08K9/04C08K7/00C08K3/34C08K7/14C08K7/08C08K5/3435C08K5/527C08K5/353
CPCC08L71/12C08L2201/08C08L2205/03C08K2201/016C08L51/04C08L23/0884C08K13/06C08K9/04C08K7/00C08K3/34C08K7/14C08K7/08C08K5/3435C08K5/527C08K5/353
Inventor 王忠强卢健体蓝承东
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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