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Whisker reinforced polyether ether ketone composite material and preparation method thereof

A composite material, polyetheretherketone technology, applied in the field of material science, can solve the problems of decreased impact resistance, inability to significantly improve heat resistance, and inability to meet various uses, and achieves reduction of friction coefficient, enhancement of mechanical properties, good fluidity

Active Publication Date: 2018-06-15
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is mentioned in the existing research materials that some scientific researchers use potassium titanate whiskers to add polyetheretherketone for modification. Although the wear resistance of polyether ether ketone can be improved, the impact resistance and heat resistance are also reduced. Can not be significantly improved, unable to meet various industrial uses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A whisker-reinforced polyether ether ketone composite material of the present invention, the composite material comprises 51% polyether ether ketone, 20% polytetrafluoroethylene, 20% modified potassium hexatitanate crystal Whiskers, 5% modified zinc oxide whiskers and 4% graphite.

[0046] In this example, the modified potassium hexatitanate whisker is obtained by modifying the potassium hexatitanate whisker with titanate coupling agent TM38-S, and the diameter of the potassium hexatitanate whisker is 0.5 μm to 1.0 μm μm, the length is 10μm~30μm, and the specific gravity is 3.2.

[0047] In this example, the modified zinc oxide whisker is obtained by modifying the zinc oxide whisker with silane coupling agent KH550. The zinc oxide whisker is a three-dimensional four-needle zinc oxide whisker with an aspect ratio of 0.14-5. The length of needles is 3μm~50μm, and the density is 5.78g / cm 3 .

[0048] In this embodiment, the particle diameter of polytetrafluoroethylene i...

Embodiment 2

[0058] A whisker-reinforced polyetheretherketone composite material of the present invention, the composite material comprises 78% of polyetheretherketone, 4% of polytetrafluoroethylene, 5% of modified potassium hexatitanate crystal Whiskers, 10% modified zinc oxide whiskers and 3% graphite.

[0059] In this example, the modified potassium hexatitanate whisker is obtained by modifying the potassium hexatitanate whisker with titanate coupling agent TM38-S, and the diameter of the potassium hexatitanate whisker is 0.7 μm to 1.5 μm μm, the length is 25 μm to 50 μm, and the specific gravity is 3.2.

[0060] In this example, the modified zinc oxide whiskers are obtained by modifying the zinc oxide whiskers with silane coupling agent KH550. The zinc oxide whiskers are three-dimensional four-needle zinc oxide whiskers with an aspect ratio of 4 to 14. , the length of needles is 25μm~80μm, and the density is 5.78g / cm 3 .

[0061] In this embodiment, the particle diameter of polytetr...

Embodiment 3

[0071] A whisker-reinforced polyether ether ketone composite material of the present invention, the composite material comprises 70% polyether ether ketone, 14% polytetrafluoroethylene, 10% modified potassium hexatitanate crystal Whiskers, 5% modified zinc oxide whiskers and 1% graphite.

[0072] In this example, the modified potassium hexatitanate whisker is obtained by modifying the potassium hexatitanate whisker with titanate coupling agent TM38-S, and the diameter of the potassium hexatitanate whisker is 0.7 μm to 1.5 μm μm, the length is 25 μm to 50 μm, and the specific gravity is 3.2.

[0073] In this example, the modified zinc oxide whiskers are obtained by modifying the zinc oxide whiskers with silane coupling agent KH550. The zinc oxide whiskers are three-dimensional four-needle zinc oxide whiskers with an aspect ratio of 4 to 14. , the length of needles is 25μm~80μm, and the density is 5.78g / cm 3 .

[0074] In this embodiment, the particle diameter of polytetraflu...

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Abstract

The present invention discloses a crystal whisker reinforced poly(ether-ether-ketone) composite material and a preparation method thereof. The composite material comprises, by mass, 50-80% of poly(ether-ether-ketone), 4-20% of polytetrafluoroethylene, 5-20% of modified potassium hexatitanate crystal whisker, 5-10% modified zinc oxide crystal whisker, and 1-4% of a processing aid. The preparation method comprises: drying various raw materials, carrying out mixing stirring, carrying out mixing extrusion on the obtained mixture, pelletizing to obtain composite material particles, drying the composite material particles, carrying out injection molding, and carrying out an annealing treatment on the obtained composite material molded material to obtain the crystal whisker reinforced poly(ether-ether-ketone) composite material. The crystal whisker reinforced poly(ether-ether-ketone) composite material of the present invention has advantages of high strength, high wear resistance, wide application range, simple preparation method, and good effect.

Description

technical field [0001] The invention belongs to the field of material science, and relates to a high-strength, highly wear-resistant whisker-reinforced polyether ether ketone composite material and a preparation method thereof, in particular to a polyether ether ketone composite material reinforced by mixing two kinds of whiskers and its preparation method. Background technique [0002] Polyetheretherketone (PEEK) is a semi-crystalline aromatic thermoplastic engineering plastic. Compared with other special engineering plastics, PEEK has many significant advantages: good dimensional stability, strong radiation resistance, good toughness, Easy extrusion and injection molding, excellent processing performance, high molding efficiency. It is precisely because of these excellent characteristics that PEEK is widely used in the fields of automobile industry, precision instruments, aerospace, chemical industry, medical treatment, and electronic appliances. However, with the contin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/08C08L27/18C08K9/04C08K9/06C08K7/08B29C47/92B29C45/76B29C48/92
Inventor 程芳伟姜其斌张志军陈智军
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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