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Preparation method of EPDM rubber/polyaniline/polypropylene composite conductive material

An EPDM rubber and composite conductive technology, which is applied in the field of composite conductive material preparation, can solve the problems of matrix polymer material comprehensive mechanical properties and processing molding performance damage, cost increase, etc., to reduce other performance decline and shorten swelling time , the effect of increasing the diffusion rate

Active Publication Date: 2018-02-16
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the matrix material is an insulator, the conduction of the composite material can only be achieved by the contact of the polyaniline particles in the matrix to form a conductive path.
However, the mechanical blending method is difficult to disperse the polyaniline particles uniformly in the matrix, and a large amount of polyaniline must be added to obtain a composite material with high electrical conductivity, which not only increases the cost, but also affects the comprehensive mechanical properties of the matrix polymer material and Processing and forming properties have a great detrimental effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 25 grams of aniline monomer to 75 grams of EPDM powder and stir evenly. Under the conditions of ultrasonic power of 200W and frequency of 20kHz at 20°C, it is subjected to ultrasonic radiation treatment. The treatment time is 0.5 hours. Diffusion into the EPDM powder, causing it to swell.

[0020] Immerse 30 grams of swollen EPDM rubber powder into 1000 grams of 1.0mol / L p-toluenesulfonic acid aqueous solution, control the temperature at 0°C, and dissolve 60 grams of ammonium persulfate in 1.0mol / L p-toluenesulfonic acid solution. 500 grams of p-toluenesulfonic acid aqueous solution was added slowly, and the reaction time was 10.0 hours. After the reaction, the material was washed with water and dried to obtain EPDM / polyaniline composite conductive powder.

[0021] Put 40 grams of EPDM rubber / polyaniline composite conductive powder and 40 grams of polypropylene into a high-speed mixer, control the mixing temperature at 60 ° C, mix evenly, use a twin-screw extruder t...

Embodiment 2

[0023] Add 25 grams of aniline monomer to 75 grams of EPDM powder and stir evenly. Under the conditions of ultrasonic power of 100W and frequency of 120kHz at 30°C, it is subjected to ultrasonic radiation treatment. The treatment time is 1.0 hour. Diffusion into the EPDM powder, causing it to swell.

[0024] Immerse 20 grams of swollen EPDM rubber powder into 1000 grams of 0.5mol / L p-toluenesulfonic acid aqueous solution, control the temperature at 20°C, and dissolve 20 grams of ammonium persulfate in 0.5mol / L p-toluenesulfonic acid solution. 500 grams of p-toluenesulfonic acid aqueous solution was added slowly, and the reaction time was 1.0 hour. After the reaction, the material was washed with water and dried to obtain EPDM / polyaniline composite conductive powder.

[0025] Put 35 grams of EPDM rubber / polyaniline composite conductive powder and 65 grams of polypropylene into a high-speed mixer, control the mixing temperature at 40 ° C, mix evenly, use a twin-screw extruder to...

Embodiment 3

[0027] Add 50 grams of aniline monomer to 50 grams of EPDM rubber powder and stir evenly. Under the conditions of ultrasonic power of 500W and frequency of 120kHz at 10°C, it is subjected to ultrasonic radiation treatment for 0.5 hours, and the aniline monomer It diffuses into the EPDM powder and makes it swell.

[0028] Immerse 40 grams of swollen EPDM rubber powder into 1000 grams of 1.0mol / L p-toluenesulfonic acid aqueous solution, control the temperature at 0°C, and dissolve 60 grams of ammonium persulfate in 1.0mol / L p-toluenesulfonic acid solution. 500 grams of p-toluenesulfonic acid aqueous solution was added slowly, and the reaction time was 10.0 hours. After the reaction, the material was washed with water and dried to obtain EPDM / polyaniline composite conductive powder.

[0029] Put 40 grams of EPDM rubber / polyaniline composite conductive powder and 40 grams of polypropylene into a high-speed mixer, control the mixing temperature at 60 ° C, mix evenly, use a twin-scr...

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Abstract

The invention discloses a method for preparing an EPDM rubber / polyaniline / polypropylene compound conductive material. The method comprises the following steps: (1) obtaining swelled EPDM rubber powder; (2) obtaining EPDM rubber / polyaniline compound conductive powder; (3) obtaining EPDM rubber / polyaniline / polypropylene compound granules; (4) obtaining the EPDM rubber / polyaniline / polypropylene compound conductive material. According to the method, a composite with high electrical conductivity can be obtained under the condition of lower polyaniline content, meanwhile better processability can be provided, and the influence that other performance of the composite is reduced caused by addition of the polyaniline content is effectively weakened.

Description

technical field [0001] The invention belongs to the field of composite conductive material preparation, in particular to a preparation method of EPDM rubber / polyaniline / polypropylene composite conductive material. Background technique [0002] High-quality materials are light in weight, cheap, superior in mechanical and electrical insulation properties, easy to process, and safe to use, so they have achieved rapid development and wide application. Polymer material facilitates people's life because of its excellent insulation, but it also brings many troubles and even disasters. In recent years, with the rapid development of electronic devices and large-scale integrated circuits, the hazards of static electricity and electromagnetic waves have become more prominent. Therefore, it is of great practical significance to change the insulation properties of polymer materials. [0003] To make conventional polymer materials antistatic, researchers have used metals, graphene, carb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/16C08L79/02C08G73/02B29C43/58B29C35/02
CPCB29C35/02B29C43/58C08G73/0266C08L23/12C08L2205/03C08L23/16C08L79/02
Inventor 潘玮张慧勤陈燕曲良俊刘红燕
Owner ZHONGYUAN ENGINEERING COLLEGE
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