Antistatic PEEK resin material and preparation method thereof

A resin material and antistatic technology, applied in the field of antistatic PEEK resin material and its preparation, can solve the problems of limited improvement of the mechanical properties of PEEK resin, affecting the surface resistance of the material, uneven distribution of carbon fibers, etc., so as to improve the mechanical properties and reduce the Effect of surface resistance and wear resistance improvement

Inactive Publication Date: 2016-04-27
NANJING COMPTECH COMPOSITES CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the agglomeration of carbon fibers, the addition of PEEK will lead to poor toughness of the overall material, and the uneven distribution of carbon fibers in the PEEK matrix will affect the surface resistance of the material.
Only adding carbon black materials has very limited effect on improving the mechanical properties of PEEK resin

Method used

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  • Antistatic PEEK resin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The preparation method of this antistatic PEEK resin material, its step comprises:

[0016] A. Dissolve sulfonated PEEK in water, add carbon nanotubes, suction filter after stirring, dry and pulverize, wherein the mass ratio of sulfonated PEEK to carbon nanotubes is 1:50;

[0017] B. Place the chopped carbon fiber in a 500°C environment for 6 hours;

[0018] C, 68 parts of PEEK powder and 2 parts of carbon nanotube powder prepared in step A, 30 parts of chopped carbon fiber prepared in step B are added in ethanol, fully stirred so that all materials are evenly blended;

[0019] D. Suction filtration, ethanol recovery, put the mixed material into the cavity of a hot-pressing mold at 395-400°C, and after melting, mold it under a pressure of 10Mpa, and cool and demould;

[0020] E. The material after demoulding is kept at 250° C. for 60 minutes, and the pressure of the whole heat preservation process is 4 Mpa to obtain a finished product.

[0021] The performance test wa...

Embodiment 2

[0023] The steps of the preparation method of the antistatic PEEK resin material are basically the same as those in the examples, the difference being: 84 parts of PEEK, 1 part of carbon nanotube, 15 parts of chopped carbon fiber, and the processing time of chopped carbon fiber is 8 hours.

[0024] The performance test was carried out on the prepared antistatic PEEK resin material, and the test results are shown in Table 1.

Embodiment 3

[0026] The steps of the preparation method of the antistatic PEEK resin material are basically the same as those in the examples, the difference being: 73.5 parts of PEEK, 1.5 parts of carbon nanotubes, 25 parts of chopped carbon fibers, and the processing time of chopped carbon fibers is 7 hours.

[0027] The performance test was carried out on the prepared antistatic PEEK resin material, and the test results are shown in Table 1.

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Abstract

The invention discloses an antistatic PEEK resin material. The antistatic PEEK resin material is prepared from 68 to 84 parts of PEEK, 15 to 30 parts of short carbon fiber and 1 to 2 parts of carbon nanotubes, wherein the carbon nanotubes have undergone surface treatment by sulfonated PEEK, the sulfonation degree of sulfonated PEEK is 70 to 80, and the short carbon fiber has undergone surface oxidation treatment. According to the invention, the short carbon fiber and carbon nanotubes are added into PEEK, so wear resistance, tensile strength, modulus and other performance of a PEEK material can be effectively improved, and surface resistance is reduced; different methods are employed for surface modification of the short carbon fiber and carbon nanotubes, so dispersion of the short carbon fiber and carbon nanotubes in a PEEK matrix is more uniform and agglomeration is reduced compared with surface modification through a same method; and the carbon fiber, carbon nanotubes and PEEK in the resin material are more tightly bonded, which is beneficial for improving the mechanical performance of the material and reducing surface resistance.

Description

technical field [0001] The invention relates to an antistatic PEEK resin material and a preparation method thereof, belonging to the field of resin materials. Background technique [0002] Polyetheretherketone (PEEK) is a linear aromatic polymer compound containing chain segments in the main molecular chain, and is a high-temperature-resistant, high-performance thermoplastic special engineering plastic. PEEK has good mechanical properties, chemical resistance, wear resistance, hydrolysis resistance, etc.; light specific gravity, good self-lubricating performance, and very good processing performance. It can be applied to high-tech industries such as aviation, machinery, electronics, chemicals, and automobiles. In the industrial field, it can especially manufacture high-demand mechanical parts used in high-speed railway trains with a speed of up to 350KM / h, such as gears, bearings, piston rings, support rings, sealing rings (letters), valve plates, wear-resistant rings, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08K9/00C08K7/06C08K7/24
Inventor 杨文光陈佩民靳予孙克原杨勇
Owner NANJING COMPTECH COMPOSITES CORP
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