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Polymer/graphene anti-static coating, preparation method and application thereof

A graphene and antistatic technology, applied in polyurea/polyurethane coatings, conductive coatings, epoxy resin coatings, etc., can solve the problem of affecting conductivity, adhesion, impact strength, difficulty in forming a homogeneous system, poor dispersion, etc. problems, to achieve the effect of improving antistatic effect, reducing surface resistivity, and continuous production

Inactive Publication Date: 2015-03-25
苏州格瑞丰纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conductive fillers include conductive carbon black, graphite, carbon fiber, metal or metal oxide powder, etc. The conductive fillers currently used are quite different from the polymer structure, and the dispersion is poor. It is difficult to form a homogeneous system, which affects its conductivity. physical and mechanical properties such as adhesion and impact strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: Get 0.2g graphene (meeting above-mentioned high-quality thin-layer graphene requirement) and 1.8g carbon black ultrasonic dispersion in NMP, spray drying then, obtain composite conductive powder, after high-speed shear dispersion with 98g steel plate paint again , to obtain an antistatic coating; then use a wire bar to coat the film, and dry it at 280°C for 1min, and the measured surface resistance is 0.4MΩ.

Embodiment 2

[0026] Embodiment 2: get 0.5g graphene (same as embodiment 1) and 6g conductive titanium dioxide and ultrasonically disperse in mesitylene, spray dry then, obtain composite conductive powder, after high-speed shear dispersion with 96.5g steel plate paint again, obtain anti- Electrostatic coating; then use a wire bar to coat the film and dry it at 280°C for 1 minute. The surface resistance cannot be measured, indicating that the prepared film is not conductive and has no antistatic performance.

Embodiment 3

[0027] Embodiment 3: get 0.5g graphene (same as embodiment 1) and 9g conductive titanium dioxide and ultrasonically disperse in mesitylene, spray dry then, obtain composite conductive powder, after high-speed shear dispersion with 93.5g steel plate paint again, obtain anti- Electrostatic coating; then use a wire bar to coat the film, dry at 280°C for 1min, and the measured surface resistance is 9MΩ.

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Abstract

The invention discloses a polymer / graphene anti-static coating, a preparation method and application thereof. The coating comprises the following constituents by weight percent: 0.01 portions to 0.5 portions of graphene; 0 portion to 10 portions of conductive additive; 90 portions to 100 portions of polymer; and solvent; the preparation method thereof comprises the following steps: completely and uniformly mixing graphene and conductive additive in advance by various manners; preparing a graphene-conductive additive compound system; using the compound system as a base, adding in conductive additive and polymer along with the solvent, completely and uniformly mixing to obtain the coating. Additionally, an anti-static film can be prepared by using different film forming technologies. The polymer / graphene anti-static coating, the preparation method and application thereof effectively solve the problems that graphene in polymer is easy to agglomerate and difficult to be uniformly dispersed in the preparation process of anti-static coating and film; the anti-static performance and mechanical performance of the coating and the film are greatly increased; meanwhile, the preparation technology is easy to be operated; the production is continuous, and the coating and film are suitable for industrial production.

Description

technical field [0001] The invention relates to an antistatic coating, in particular to a polymer / graphene antistatic coating, its preparation method and application, and belongs to the technical field of composite materials. Background technique [0002] Paint, as a polymer material coated on the surface of objects for protection and decoration, is widely used in the finishing of metal equipment, interior decoration, furniture, etc. Ordinary coatings are prone to static electricity accumulation during use due to their high electrical insulation properties. It may cause dust collection to be seriously difficult to purify and destroy the ultra-clean environment, thereby affecting the appearance of the product or the operation of precision instruments: electrostatic discharge will cause various precision instruments and electronic components to be broken down and scrapped; in explosives, coal mines, petroleum, chemical industry In , textile and other industries, electrostatic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/24C09D7/12C09D163/00C09D175/04C09D127/16C09D133/00C09D109/06C09D183/04C09D161/06C08L63/00C08L75/04C08L27/16C08L33/00C08L9/06C08L83/04C08L61/06C08K3/04
CPCC09D5/24C09D7/61
Inventor 刘立伟陈明亮邱胜强李伟伟郭玉芬李奇刘朝军
Owner 苏州格瑞丰纳米科技有限公司
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