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A kind of conductive paint and its preparation method and application

A conductive coating and conductive carbon black technology, applied in conductive coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor acid resistance, poor uniformity of the film layer, and weak bonding force of the substrate to achieve easy solution Ineffectiveness, less solid content, and the effect of reducing adsorption

Active Publication Date: 2022-04-01
深圳市励高表面处理材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the existing conductive coatings all have the following disadvantages: 1. More expensive conductive additives such as nano-precious metals are used; 2. The bonding force with the substrate is weak, the uniformity of the film layer is poor, and the acid resistance is not good.

Method used

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  • A kind of conductive paint and its preparation method and application
  • A kind of conductive paint and its preparation method and application
  • A kind of conductive paint and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A kind of conductive coating, in total weight 100 parts, comprises the raw material of following weight part: 0.5 part of conductive carbon black, 0.5 part of pigment carbon black, 0.15 part of pH buffering agent, 0.2 part of multifunctional additive, 1 part of sodium polycarboxylate dispersant, 0.6 part of alkylphenol polyoxyethyl ether dispersant, 0.1 part of potassium carbonate, 1.5 part of polystyrene sulfonic acid active agent, 0.1 part of defoamer, 0.01 part of antioxidant, 0.15 part of polyacrylic acid, and the rest The volume is deionized water.

[0055] The preparation method of the conductive paint is as follows: mixing the raw materials except the conductive auxiliary agent in proportion; then adding the conductive auxiliary agent to stir and disperse, and finally using a nanometer grinder to grind and disperse.

Embodiment 2

[0057] A kind of conductive paint, in total weight 100 parts, comprises the raw material of following weight part: 0.5 part of conductive carbon black, 0.5 part of pigment carbon black, 0.2 part of PH buffering agent, 0.2 part of multifunctional auxiliary agent, 0.5 part of sodium polycarboxylate dispersant, 1 part of alkylphenol polyoxyethyl ether dispersant, 1 part of polymethacrylic acid sodium salt dispersant, 0.1 part of potassium carbonate, 2 parts of polystyrene sulfonic acid active agent, 0.1 part of defoamer , 0.05 part of antioxidant, 0.03 part of polyacrylic acid, and the balance is deionized water.

[0058] The preparation method of the conductive coating in this embodiment is the same as the preparation method of Embodiment 1, and will not be described in detail here.

Embodiment 3

[0060] A kind of conductive coating, in total weight 100 parts, comprises the raw material of following weight part: 0.5 part of conductive carbon black, 0.5 part of pigment carbon black, 0.1 part of PH buffering agent, 0.1 part of multifunctional additive, 1 part of sodium polycarboxylate dispersant, 0.4 part of alkylphenol polyoxyethyl ether dispersant, 1 part of polymethacrylic acid sodium salt dispersant, 0.1 part of potassium carbonate, 1 part of polystyrene sulfonic acid active agent, 0.1 part of defoamer , 0.03 part of antioxidant, 0.03 part of polyurethane, and the balance is deionized water.

[0061] The preparation method of the conductive coating in this embodiment is the same as the preparation method of Embodiment 1, and will not be described in detail here.

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Abstract

The invention discloses a conductive paint and a preparation method and application thereof. A conductive paint, based on a total weight of 100 parts, comprises a conductive auxiliary agent consisting of at least two of 0.05-1 part of conductive carbon black, 0.05-1 part of pigment carbon black and 0.02-1 part of graphene. The present invention uses carbon black and / or graphene as the conductive assistant, which is easy to disperse, cheaper than nano-silver, nano-gold and other noble metal conductive assistants, and also has better stability than nano-precious metals.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a conductive coating and its preparation method and application. Background technique [0002] Conductive coating is a kind of functional coating, which has the function of conducting current and eliminating accumulated charge. It is widely used in antistatic and electromagnetic shielding of plastics, rubber, synthetic fibers, etc. The conductive adhesive made of silver and epoxy resin developed by American scientists in 1948 is the earliest conductive coating currently recognized. [0003] Conductive coatings are composed of film-forming substances (binders), fillers (including pigments), additives and solvents. At least one component is conductive to meet the conductivity of 10% after the coating is formed. -10 The requirement above S / cm. Conductive coatings are divided into intrinsic conductive coatings and doped conductive coatings in terms of their mechanism of action. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/02C09D175/04C09D5/24
CPCC09D133/02C09D175/04C09D5/24C08K2201/014C08K13/02C08K3/04C08K3/042
Inventor 刘旭蔡辉高蔡辉星姚建波王政
Owner 深圳市励高表面处理材料有限公司
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