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A kind of polyaryletherketone nanocomposite material and preparation method thereof

A nanocomposite material, polyaryletherketone technology, applied in the field of new polyaryletherketone nanocomposite materials and its preparation, can solve the problems of polymer mechanical strength reduction, affecting material application, etc., to avoid two-phase separation and solve the problem of interface Poor compatibility, effect of improving wear resistance

Active Publication Date: 2016-02-10
四川天策聚材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low friction coefficient polymers such as polytetrafluoroethylene can reduce the friction coefficient of polyaryletherketone, but the mechanical strength of the polymer will be greatly reduced, which will affect the application of materials
[0004] At present, the method of improving the wear resistance of polyaryletherketone is still limited to the physical blending of polyaryletherketone and other low friction coefficient fillers. Although it can improve the friction performance of polyaryletherketone to a certain extent, it cannot fundamentally solve the problem. The problem of two-phase separation between polyaryletherketone and filler makes it disadvantageous for low friction coefficient fillers to improve the friction performance of polyaryletherketone

Method used

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  • A kind of polyaryletherketone nanocomposite material and preparation method thereof
  • A kind of polyaryletherketone nanocomposite material and preparation method thereof
  • A kind of polyaryletherketone nanocomposite material and preparation method thereof

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preparation example Construction

[0025] 1. Preparation of polyaryletherketone nanocomposites

[0026] Unless otherwise specified, the following raw material parts are parts by weight.

Embodiment 1

[0028] Ultrasonic dispersion of 20 parts of fluorinated graphite, 100 parts of 4,4-difluorobenzophenone, and o-methylhydroquinone in an equimolar amount to 4,4-difluorobenzophenone in 80 parts of acetone, The ultrasonic frequency is 10Hz, and the ultrasonic time is 2 hours; after the solvent is removed by rotary evaporation, it is transferred to a reaction kettle with mechanical stirring, condensation device, nitrogen device and feeding device, and 100 parts of toluene and phenolic monomers are added. The molar amount of potassium carbonate and 300 parts of sulfolane, wherein toluene is a water-carrying agent; the temperature in the reactor is raised to the reflux temperature of toluene, and after the heat preservation reaction for 2 hours, the temperature is gradually raised to 240°C, and the heat preservation reaction is carried out for 6 hours. The whole reaction process is protected by nitrogen. . The product in the reaction kettle is washed with acetone and deionized wate...

Embodiment 2

[0030] 0.75 parts of graphene, 100 parts of 4,4-difluorobenzophenone, and hydroquinone in an equimolar amount to 4,4-difluorobenzophenone were ultrasonically dispersed in 120 parts of ethanol, wherein the ultrasonic frequency was 40Hz, ultrasonic time is 2 hours; after the solvent is removed by rotary evaporation, it is transferred to the reaction kettle with mechanical stirring, condensation device, nitrogen device and feeding device, and 100 parts of toluene and the equivalent molar amount of hydroquinone are added. Acid agent (potassium carbonate: sodium carbonate = 19:1, molar ratio) and 630 parts of sulfolane, of which toluene is the water-carrying agent; the temperature in the reactor is raised to the reflux temperature of toluene, and after the heat preservation reaction for 4 hours, the temperature is gradually raised to 220°C , heat preservation reaction for 4 hours, nitrogen protection during the whole reaction process. The product in the reaction kettle is washed wi...

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Abstract

The invention discloses a polyaryletherketone nanocomposite material and a preparation method thereof. The polyaryletherketone nanocomposite material consists of 0.2-20 parts by weight of nano filler, 100 parts by weight of 4,4-difluorobenzophenone or p- Phthaloyl chloride, phenolic monomers or diphenyl ether monomers in equimolar amounts with 4,4-difluorobenzophenone or terephthaloyl chloride are prepared by in-situ polycondensation reaction, and the nanofiller is Layered expanded graphite, graphene, graphene oxide or graphite fluoride, the phenolic monomer is p-phenol, biphenol, bisphenol A, o-methylhydroquinone or 3,3',5,5'- Tetramethylbiquinone. The polyaryletherketone nanocomposite material not only has good thermodynamic properties and corrosion resistance, but also has high wear resistance, is suitable for molding processes such as injection molding and compression molding, and can meet the requirements of harsh conditions such as high temperature and high pressure. The principle of its preparation method Reliable, simple process, convenient operation, easy to control, and no toxic by-products, has broad market prospects.

Description

technical field [0001] The invention relates to a novel polyaryletherketone nanocomposite material and a preparation method thereof, belonging to the field of high-performance polymer materials and preparation thereof. technical background [0002] Polyaryletherketone is a kind of polymer in which phenylene rings are linked by ether bonds and carbonyl groups. According to the order and ratio of links between ether bonds, ketone groups and benzene rings in the molecular chain, polyether ketones and polyether ethers can be formed. Polymer varieties such as ketone, polyether ketone ketone and polyether ketone ether ketone ketone. In polyaryletherketone series products, the lower the ratio of ether bond to ketone group in the molecular chain, the higher the melting point and glass transition temperature of the polymer. The glass transition temperature of polyether ketone is 165°C and the melting point is 365°C; the glass transition temperature of polyether ether ketone (T g ) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/10C08L61/16C08K7/00C08K9/00C08K3/04C08G65/40C08G8/02
Inventor 李云涛赵春霞李辉
Owner 四川天策聚材科技有限公司
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