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High performance composite graphene electrically-conducting paint

A technology of composite graphene and conductive coatings, applied in conductive coatings, epoxy resin coatings, coatings, etc., can solve the problems of insufficient electrical conductivity of conductive coatings, poor impact resistance of mechanical performance coatings, etc., and achieve improved mechanical properties and low price Effect of low cost and uniform surface resistivity

Inactive Publication Date: 2019-08-23
广东华斓汽车材料研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is that the conductive performance of the existing conductive coatings to be overcome is not enough to be used for the inner wall spraying materials of the shells such as mobile phones, calculators and precision instruments with metal and composite materials as base materials, mechanical properties and coating resistance. Poor impact

Method used

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  • High performance composite graphene electrically-conducting paint

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Embodiment 1

[0020] The invention provides a high-performance composite graphene conductive coating. The components of the coating are calculated according to the weight percentage: 10-15% of potassium silicate, 3-10% of water-based epoxy resin, and 1-2.5% of graphene oxide. , 5-10% tin dioxide particles, 8-10% montmorillonite, 2.5-2% sodium lignosulfonate, 3.5-5% additives, 10-15% inorganic metal copper particles, 8-15% inorganic metal silver particles 10%, inorganic metal gold particles 5-3%, inorganic silicon dioxide particles 5-7%, neutralizing agent propanolamine 2-5%, ethanol 2-5% and distilled water 35-45%.

[0021] Specific steps are as follows:

[0022] Step 1: putting the graphene oxide and the sodium lignosulfonate into distilled water, and stirring to obtain a graphene oxide dispersion;

[0023] Step 2: Put the potassium silicate and the water-based epoxy resin into the graphene oxide dispersion, add the montmorillonite and the additive after stirring, and continue stirring to...

Embodiment 2

[0027] The invention provides a high-performance composite graphene conductive coating. The components of the coating are calculated according to the weight percentage: 10-15% of potassium silicate, 3-10% of water-based epoxy resin, and 1-2.5% of graphene oxide. , montmorillonite 8-10%, sodium lignosulfonate 2.5-2%, additives 3.5-5%, inorganic metal copper particles 10-15%, inorganic silica particles 5-7%, neutralizer propanol Amine 2-5%, ethanol 2-5% and distilled water 45-50%.

[0028] Specific steps are as follows:

[0029] Step 1: putting the graphene oxide and the sodium lignosulfonate into distilled water, and stirring to obtain a graphene oxide dispersion;

[0030] Step 2: Put the potassium silicate and the water-based epoxy resin into the graphene oxide dispersion, add the montmorillonite and the additive after stirring, and continue stirring to obtain a mixed solution;

[0031] Step 3: adding the inorganic metal copper particles and the inorganic silicon dioxide par...

Embodiment 3

[0034] The invention provides a high-performance composite graphene conductive coating. The components of the coating are calculated according to the weight percentage: 10-15% of potassium silicate, 3-10% of water-based epoxy resin, and 1-2.5% of graphene oxide. , 5-10% tin dioxide particles, 8-10% montmorillonite, 2.5-2% sodium lignosulfonate, 3.5-5% additives, 10-15% inorganic metal copper particles, 5% inorganic silica particles ~7%, neutralizing agent propanolamine 2~5%, ethanol 2~5% and distilled water 45~50%.

[0035] Specific steps are as follows:

[0036] Step 1: putting the graphene oxide and the sodium lignosulfonate into distilled water, and stirring to obtain a graphene oxide dispersion;

[0037] Step 2: Put the potassium silicate and the water-based epoxy resin into the graphene oxide dispersion, add the montmorillonite and the additive after stirring, and continue stirring to obtain a mixed solution;

[0038] Step 3: adding the tin dioxide nanoparticles into th...

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Abstract

The invention discloses a high performance composite graphene electrically-conducting paint. The high performance composite graphene electrically-conducting paint comprises, by weight, potassium waterglass of 10 to 15%, a waterborne epoxy resin of 3 to 10%, graphene oxide of 1 to 2.5%, tin dioxide particle of 5 to 10%, montmorillonite of 8 to 10%, sodium lignosulfonate of 2 .5 to 2%, an auxiliaryagent of 3.5 to 5%, inorganic metal copper particle of 10 to 15%, inorganic metal silver particle of 8 to 10%, inorganic metal gold particle of 5 to 3%, inorganic silica particle of 5 to 7 %, a neutralizer propanolamine of 2 to 5%, ethanol of 2 to 5%, and distilled water of 35 to 45%. The raw materials are widely available; the cost is low; the high performance composite graphene electrically-conducting paint is prepared through adding of inorganic particle nanometer silica, stannic oxide particle, nanometer copper particle, nanometer silver particle, and nanometer gold particle into a paintbase material; gold, silver, and copper are excellent in electric conductivity, so that paint electric conductivity can be increased at a certain ratio.

Description

technical field [0001] The invention relates to a graphene conductive paint, in particular to a high-performance composite graphene conductive paint. Background technique [0002] Conductive coating refers to a new type of functional coating that can be applied to non-conductive substrates by various spraying methods, so that it has the ability to conduct current and eliminate the accumulated static charge. The conductivity after coating is generally greater than 10S / m. It has been widely used in various fields. At present, conductive coatings can be divided into structural conductive coatings and additive conductive coatings according to the conductive mechanism and composition. Among them, the additive-type conductive coating is popular because of its advantages of simple equipment, convenient operation, low cost and being able to be applied to various complex-shaped surfaces. However, the conductivity of the existing conductive coating is not enough for metal, composite ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/24
CPCC08K2003/0806C08K2003/085C08K2003/2231C08K2201/001C08K2201/011C09D5/24C09D163/00C08L97/00C08K13/02C08K3/042C08K3/36C08K3/22C08K3/08
Inventor 林成辉陈之善林璟汤汉良王伟蔡娴芳李桂琴李树伟郭逍遥罗晖
Owner 广东华斓汽车材料研究院
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