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A kind of sponge composite conductive elastic material and its preparation method and application in antistatic field

A technology of composite conductive and elastic materials, applied in the direction of conductive materials, conductive materials, conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of low conductivity and poor antistatic performance

Active Publication Date: 2022-02-15
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, elastic conductive composite materials have received more and more attention because of their good electrical stability and mechanical properties. Among them, polyaniline elastic conductive materials have been studied more, that is, polyaniline is attached as a conductive material to sponges. A conductive layer is formed on the surface, but the conductivity of this polyaniline elastic conductive material is usually lower than 0.1mS / cm, and the low conductivity leads to poor antistatic performance, thus limiting the application of this type of material in the field of antistatic

Method used

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preparation example Construction

[0024] The present invention provides the preparation method of the sponge composite conductive elastic material described in the above technical solution, comprising the following steps:

[0025] (1) water, perchloric acid, ammonium persulfate, aniline and graphene are mixed to obtain a mixed solution;

[0026] (2) immersing the polyurethane sponge in the mixed solution to carry out a dilute solution polymerization reaction to obtain a sponge composite conductive elastic precursor material;

[0027] (3) soaking the sponge composite conductive elastic precursor material in inorganic acid to obtain the sponge composite conductive elastic material.

[0028] The invention mixes water, perchloric acid, ammonium persulfate, aniline and graphene to obtain a mixed liquid. In the present invention, the graphene is preferably single-layer graphene; the present invention has no special requirements on the source of the graphene, and the source of graphene known to those skilled in the ...

Embodiment 1

[0035] Mix 95g of water, 5g of perchloric acid, 0.2g of ammonium persulfate, 0.1g of aniline and 0.05g of graphene at 0°C to obtain a mixed solution;

[0036] Immerse the polyurethane sponge in the above mixed solution (0°C), stir, and carry out the dilute solution polymerization reaction for 6 hours; after the reaction is completed, soak the obtained sponge material in dilute hydrochloric acid (mass concentration 3%) at room temperature for 5 minutes, then dry (70°C) to remove Moisture, the sponge composite conductive elastic material with graphene and polyaniline nanowires on the surface is obtained.

[0037] The conductivity of the obtained sponge composite conductive elastic material was 0.12 mS / cm.

Embodiment 2

[0039] Mix 95g of water, 5g of perchloric acid, 0.2g of ammonium persulfate, 0.1g of aniline and 0.08g of graphene at 0°C to obtain a mixed solution;

[0040] Immerse the polyurethane sponge in the above mixed solution (0°C), stir, and carry out dilute solution polymerization reaction for 12 hours; after the reaction is completed, soak the obtained sponge material in dilute hydrochloric acid (mass concentration 3%) at room temperature for 5 minutes, then dry (70°C) to remove Moisture, the sponge composite conductive elastic material with graphene and polyaniline nanowires on the surface is obtained.

[0041] The conductivity of the obtained sponge composite conductive elastic material was 0.15 mS / cm.

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Abstract

The invention provides a sponge composite conductive elastic material, a preparation method thereof and an application in the antistatic field, and relates to the technical field of antistatic materials. The sponge composite conductive elastic material provided by the invention comprises a polyurethane sponge and graphene and polyaniline nanowires attached to the polyurethane sponge. In the present invention, the polyaniline nanowires and graphene attached to the surface of the sponge have conductivity, which can lead away the generated static charge and avoid the accumulation of static electricity, wherein the polyaniline nanowires enable the surface of the elastic conductive material to be nanostructured, Compared with the non-nanostructured polyaniline surface, the contact area of ​​the material surface is increased, and more static charges can be conducted away. The conductivity of the sponge composite conductive elastic material provided by the invention is greater than 0.1mS / cm, and the stronger the conductivity, the easier it is to conduct static charges away. Therefore, the sponge composite conductive elastic material provided by the invention has excellent antistatic performance and can be used in It is widely used in the field of anti-static.

Description

technical field [0001] The invention relates to the technical field of antistatic materials, in particular to a sponge composite conductive elastic antistatic material, a preparation method thereof and an application in the antistatic field. Background technique [0002] With the development of the economy, the anti-static function of the equipment surface has become a key concern. The static electricity generated during the friction process of the material surface will cause great harm, such as the static electricity generated in the fields of oil and gas processing and transportation, powder processing, surface contact of electronic devices, etc., may have a destructive effect on production and life. It is of great significance to study high-efficiency anti-static materials and realize high-efficiency anti-static on the surface of equipment. [0003] In recent years, elastic conductive composite materials have received more and more attention because of their good electri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/18H01B1/24H01B1/12H01B13/00H05F3/00
CPCH01B1/18H01B1/24H01B1/128H01B13/00H05F3/00
Inventor 王道爱刘玉鹏
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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