Polyaryletherketone nano composite 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 affecting the application of materials, the reduction of polymer mechanical strength, etc., to solve the problem of poor interfacial compatibility and avoid The effect of two-phase separation and enhanced interaction force

Active Publication Date: 2014-05-14
四川天策聚材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 polyarylethe

Method used

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  • Polyaryletherketone nano composite material and preparation method thereof
  • Polyaryletherketone nano composite material and preparation method thereof
  • Polyaryletherketone nano composite material and preparation method thereof

Examples

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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 water...

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 is prepared from 0.2-20 parts of nano fillers, 100 parts of 4,4-DFBP or paraphthaloyl chloride, and a phenol monomer or a diphenyl ethermonomer with equal molar weight to the 4,4-DFBP or paraphthaloyl chloride in in-situ polycondensation reaction. The nano fillers are layered expanded graphite, graphene, graphene oxide or carbon monofluoride; the phenol monomer is phenol, xenol, bisphenol A, o-methylhydroquinone or 3,3',5,5'-tetramethyl biphenol. The polyaryletherketone nanocomposite material not only has good thermodynamic property and decay resistance, simultaneously has high wear resistance, is applicable to the molding technologies such as injection, mold pressing and the like, and can meet the operating requirements under severe conditions such as high temperature, high pressure and the like, and the preparation method is reliable in principle, simple in process, convenient to operate, easy to control, and free of toxic and side products, and has a broad market prospect.

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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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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