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A kind of polyetheretherketone foaming material and preparation method thereof

A technology of polyether ether ketone and foaming materials, which is applied in the field of preparation of polyetheretherketone foaming materials, can solve the problems of low temperature and long-term stable use, achieve short production cycle, reduce raw material consumption, method simple effect

Active Publication Date: 2020-11-17
YIBIN TIANYUAN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the foaming material in the prior art has a low service temperature and cannot be used stably for a long time under the conditions of high acid-base and high corrosiveness, and to provide a foaming material with high temperature resistance, corrosion resistance and high mechanical strength. High-performance polyetheretherketone foaming material and preparation method thereof

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  • A kind of polyetheretherketone foaming material and preparation method thereof

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preparation example Construction

[0023] A preparation method of polyetheretherketone foaming material, comprising the following steps:

[0024] (1) Provide the above-mentioned raw materials for drying. The specific drying conditions are: polyether ether ketone particles, dry at 150-160°C for 220-240 minutes, and then cool to room temperature; polyimide, aluminum oxide, silicon dioxide , phenyl tetrazole were dried at 200-210°C for 180-200 minutes, and then cooled to room temperature; through drying, polyimide, aluminum oxide, silicon dioxide, phenyl tetrazole and polyetherether were effectively controlled The moisture content inside the ketone particles, if the moisture content in the raw material is too high, the water will be vaporized in advance at about 100°C during the foaming process, resulting in irregular foaming in the internal structure of the material. At the foaming temperature of critical carbon dioxide, the original bubbles will break, affecting the foaming rate and mechanical properties.

[00...

Embodiment 1

[0029] A polyether ether ketone foaming material, comprising the following raw materials in parts by mass: 8.5 kg of polyether ether ketone particles, 0.1 kg of supercritical carbon dioxide, 0.2 kg of phenyl tetrazole; 0.1 kg of polyimide , 0.1kg of aluminum oxide, 0.1kg of silicon dioxide with a particle size of 20nm; the melt index of polyetheretherketone particles is 20-25g / 10min. The purity of supercritical carbon dioxide is ≥99%.

[0030] A preparation method of polyetheretherketone foaming material, comprising the following steps:

[0031] (1) The above-mentioned raw materials are dried, and the specific drying conditions are:

[0032] PEEK particles, dried at 150°C for 240 minutes, then cooled to room temperature;

[0033] Polyimide, aluminum oxide, silicon dioxide, and phenyl tetrazole were dried at 200°C for 200 minutes, and then cooled to room temperature;

[0034] (2) Add the dried polyether ether ketone particles, polyimide, aluminum oxide, silicon dioxide, and ...

Embodiment 2

[0038] A polyether ether ketone foaming material, comprising the following raw materials in parts by mass: 9.5 kg of polyether ether ketone particles, 0.3 kg of supercritical carbon dioxide, 0.3 kg of phenyl tetrazole; 0.2 kg of polyimide , 0.3kg of aluminum oxide, 0.3kg of silicon dioxide with a particle size of 30nm; the melt index of polyether ether ketone particles is 20-25g / 10min. The purity of supercritical carbon dioxide is ≥99%.

[0039] A preparation method of polyetheretherketone foaming material, comprising the following steps:

[0040] (1) The above-mentioned raw materials are dried, and the specific drying conditions are:

[0041] PEEK particles, dried at 160°C for 220 minutes, then cooled to room temperature;

[0042] Polyimide, aluminum oxide, silicon dioxide, and phenyl tetrazole were dried at 210°C for 180 minutes, and then cooled to room temperature;

[0043] (2) Add the dried polyether ether ketone particles, polyimide, aluminum oxide, silicon dioxide, an...

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Abstract

The invention aims to provide a high-performance polyether ether ketone foamed material with high-temperature resistance, corrosion resistance and high mechanical strength. The polyether ether ketonefoamed material comprises the following raw materials in parts by mass: 85-95 parts of polyether ether ketone granules, 3-6 parts of foaming agents and 3-8 parts of nucleating agents, wherein the foaming agents are supercritical carbon dioxide and phenyl tetrazole, and the nucleating agents are polyimide, aluminum oxide and silicon dioxide. The preparation method provided by the invention is simple, the production period is short, the production efficiency is high, and the preparation method can be used for large-scale commercial production; the glass transition temperature and the melting temperature of the prepared polyether ether ketone foamed material have little difference with the glass transition temperature and the melting temperature of unformed polyether ether ketone resin, but through the introduction of a microporous structure, the weight of the prepared polyether ether ketone foamed material is reduced by 15-35%, so that the raw material consumption can be reduced, the product weight can be reduced, and the cost is saved; the foamed material provided by the invention has the performance of high-temperature resistance, corrosion resistance, high mechanical strength andthe like, and thus can be applied to the fields such as national defense, military industry, aerospace and the like which have harsh use environments,.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a preparation method of polyetheretherketone foaming material. Background technique [0002] Polyether ether ketone is a special engineering plastic with a semi-crystalline structure. Because of its high heat resistance, good chemical corrosion resistance, aging resistance, impact resistance, and good flame retardancy, etc. Advantages, are widely used in petrochemical, electronic appliances, aerospace and transportation and other fields. Polyether ether ketone material has a strong rigidity due to the fact that the main chain contains many benzene rings, so that the glass transition temperature and thermal decomposition temperature of the polymer are high; on the other hand, due to the presence of conjugated double bonds in the main chain , the molecular chains are arranged regularly, so that it has excellent mechanical properties. [0003] Polymer microporous foam ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/16C08L79/08C08K3/36C08K3/22C08J9/12C08J9/10
CPCC08J9/0061C08J9/0066C08J9/008C08J9/108C08J9/122C08J2203/04C08J2203/06C08J2203/08C08J2203/184C08J2361/16C08J2479/08C08K3/36C08K2003/2227C08K2201/003C08K2201/011
Inventor 侯天武颜华佘国华
Owner YIBIN TIANYUAN GRP CO LTD
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