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Heat-resistant antistatic conductive polymer composite material and preparation method therefor and application thereof

A technology of conductive polymers and composite materials, applied in the field of conductive polymers, can solve the problems of difficult reprocessing, high brittleness of PPS, difficult processing of PEEK, etc., and achieves the effect of meeting the requirements of recycling and reuse, highlighting electrical conductivity and good electrical conductivity.

Inactive Publication Date: 2015-10-21
广州索润科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High melting temperature and high viscosity make PEEK molding and processing difficult, and its waste is blocky debris, which is difficult to reprocess, difficult to pump, high energy consumption, and not easy to recycle.
[0003] PPS is brittle, PEEK is difficult to process, and its application is greatly limited. At present, relevant research has been carried out. The composite modification of the two can obtain a blend system with good mechanical properties, but its electrical conductivity after compounding cannot meet the demand.

Method used

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  • Heat-resistant antistatic conductive polymer composite material and preparation method therefor and application thereof
  • Heat-resistant antistatic conductive polymer composite material and preparation method therefor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Proportioning is carried out according to the content of each component in Example 1 in Table 1, wherein the preparation steps are as follows:

[0046] S1. Dispersion treatment of carbon nanotubes: place the CNT powder in a 500ml spherical bottle, measure excess concentrated H 2 SO 4 concentrated HNO 3 Mixed solution (volume ratio H 2 SO 4 : HNO 3 =3:1) Pour into the spherical bottle until the powder is completely submerged, insert the condenser pipe of circulating water on it, heat it in the electric heating mantle, make the acid solution boil and reflux under the condition of passing cooling water for 0.5h, and then use The ceramic funnel lined with a septum membrane was washed and filtered under vacuum until the pH value was neutral, and then dried in an oven at ℃.

[0047] S2. Surface modification of conductive carbon black: place conductive carbon black in a 500ml spherical bottle, measure excess ammonium persulfate aqueous solution and pour into the spherical...

Embodiment 2

[0052] The preparation method is the same as in Example 1, and the distribution ratio of the components is shown in Table 1.

Embodiment 3

[0054] The preparation method is the same as in Example 1, and the distribution ratio of the components is shown in Table 1.

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Abstract

The present invention provides a heat-resistant antistatic conductive polymer composite material and a preparation method therefor and application thereof. The composite material comprises the following compositions in percentage by mass: 30-60% of polyether-ether-ketone (PEEK); 30-60% of polyphenylene sulfide (PPS); 1-10% of carbon nanotubes (CNT); and 1-10% of conductive carbon black. According the present invention, the PEEK, PPS, CNT and conductive carbon black are optimally combined, and particles in different size stack together compactly to form an interlocked and controllable net structure, so the mechanical property can be guaranteed; the antistatic requirement of lower than 1012 ohm.cm is met with lower content of the conductive additive; the conductive requirement of 108 ohm.cm is met with appropriate carbon material content; and recycling and reuse of the PEEK material are implemented. According the invention, the physical blending-injection molding method used to obtain the composite material and is simpler and more adjustable than the melt blending-injection molding method in the prior art.

Description

technical field [0001] The invention belongs to the technical field of conductive polymers, and more specifically relates to a high-temperature-resistant and antistatic conductive polymer composite material and its preparation method and application. Background technique [0002] Polyether ether ketone (PEEK) is a high-performance crystalline special engineering plastic, similar in performance to polyphenylene sulfide (PPS), which has physical and chemical properties such as high temperature resistance and corrosion resistance, and has excellent mechanical properties and electrical properties , Widely used in aerospace, automotive industry, electrical and electronic and medical equipment and other fields. High melting temperature and high viscosity make PEEK molding and processing difficult, and its waste is blocky debris, which is difficult to reprocess, difficult to pump, high energy consumption, and not easy to recycle. [0003] PPS is brittle, PEEK is difficult to proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08L81/02C08K7/24C08K3/04C08K9/02B29B7/04B29C45/78
Inventor 高军林志丹邓淑玲
Owner 广州索润科技股份有限公司
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