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Polyetheretherketone composite material and method of its manufacture

A polyetheretherketone and composite material technology, which is applied in the field of composition and preparation of special engineering materials, can solve problems such as insufficient performance of polyetheretherketone, and achieve the effects of performance improvement, cost reduction and thermal conductivity improvement.

Active Publication Date: 2006-12-20
NANJING COMPTECH COMPOSITES CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the performance of single-component polyether ether ketone is not good enough, and the performance needs to be improved.

Method used

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  • Polyetheretherketone composite material and method of its manufacture
  • Polyetheretherketone composite material and method of its manufacture
  • Polyetheretherketone composite material and method of its manufacture

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Experimental program
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Effect test

preparation approach 1

[0027] Preparation scheme 1, injection molding:

[0028] KT-PEEK composite polymer can be injection molded with a standard reciprocating screw injection molding machine. However, due to the high melting temperature, the following processing parameters need to be designed:

[0029] ① Melt cylinder temperature: In order to successfully mold KT-PEEK polymer, the cylinder heater connected to the sol cylinder of the injection molding machine must reach 400-410°C, and the injection port should be kept between 70°C-100°C between.

[0030] ②. Nozzle and cut-off system: KT-PEEK polymer has a high melting point. If the temperature drops below 343°C, the melt will solidify quickly. It is necessary to install a heater large enough at the nozzle to prevent cooling and "injection cold" materials”, this is very important.

[0031] KT-PEEK polymers are generally viscous enough to use open nozzle systems. Do not use closed nozzles because they often contain melt "dead spots" and limit injec...

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Abstract

This invention relates to a polyetheretherketone composite material, composed of a binary composite of polyetheretherketone and one of molybdenum disulfide, aluminium trioxide, copper powder, silica dioxide or stainless steel powder, with weight ratio of 80-99.9:0.1-20. On the base of the above weight as 100%, it continues to add polytetrafluoroethylene or polyphenyl ester, with weight ratio of 0.1-80% and 0.1-20% respectively, to form the ternary polyetheretherketone composite material. On the base of the above binary or ternary composite weight, it continues to add carbon fiber or glass fiber, with weight ratio of 0.1-50%. This invented composite material is characterized of increased thermal conductivity factor, distinct improvement of tensile strength, ball indentation hardness, frictional factor and linear expansibility, and cost reducing.

Description

technical field [0001] The invention relates to composite materials and their preparation, especially the composition and preparation of special engineering materials. Background technique [0002] Aromatic polymer polyetheretherketone (PEEK) resin is a kind of thermoplastic engineering plastic with excellent comprehensive performance in recent years, high temperature resistance, chemical resistance and excellent rigidity and toughness, such as the production of British Victrex company and domestic Jilin University and other units. With the development of thermoplastic resin-based composite material molding technology, composite materials blended with PEEK resin and other materials are used to replace metal wear-resistant materials, such as bushings, gears, bearings, valve seats, etc., and many products have come out at home and abroad. The application also tends to be extensive. [0003] However, the performance of single-component polyether ethe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/00C08K7/14B29C45/03C08K3/22C08K3/08
Inventor 杨文光
Owner NANJING COMPTECH COMPOSITES CORP
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