A graphene-based water-based electrothermal coating and preparation method thereof

An electrothermal coating and graphene technology, applied in the coating field, can solve the problems of rare patents and few reports, and achieve long-term effective electrothermal heating effect, good adhesion, and good resistance to cold and heat cycles.

Active Publication Date: 2018-06-15
XINHE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, there are not many reports on the use of graphene in electrothermal coatings, and related patents are even rarer.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A water-based electrothermal coating based on graphene, consisting of the following raw materials in parts by weight: 1 part of propylene glycol freeze-thaw stabilizer, 0.1 part of 2-amino-2-methyl-1-propanol, 0.1 part of polyoxyethylene alkyl ether 0.1 part of polymer copolymer alkylamine salt, 0.1 part of silicone defoamer, 1 part of graphene, 35 parts of calcium carbonate, 0.03 part of 1,2-benzisothiazolin-3-one (BIT), 0.04 part of 2-methyl-5-chloro-4-isothiamidazol-3-one, 0.03 part of 2-methyl-4-isothiamidazol-3-one (CMIT / MIT), 1 part of lauryl alcohol ester, 1 part of hydroxyethyl cellulose, 15 parts of polyacrylate emulsion, 45.5 parts of deionized water. The polyacrylate emulsion has a solid content of 40%, a pH of 8.0, a particle size of 0.15 microns, a viscosity of about 500 mPa.s, a minimum film-forming temperature of 18°C, and a glass transition temperature of 42°C. The graphene is produced by the mechanical exfoliation graphite method, and is a powder forme...

Embodiment 2

[0035]A water-based electrothermal paint based on graphene, which is composed of the following raw materials in parts by weight: 3 parts of propylene glycol ether, 0.2 part of dimethylethanolamine, 0.3 part of polyoxyethylene polyol ether, polymer embedded with pigment affinity group 1 part of segment copolymer solution, 0.5 part of aliphatic hydrocarbon emulsion, 5 parts of graphene, 50 parts of calcium carbonate, 0.1 part of 1,2-benzisothiazolin-3-one (BIT), 0.1 part of 2-methyl-5 - 0.1 part of chloro-4-isothiamidazol-3-one, 0.1 part of 2-methyl-4-isothiamidazol-3-one (CMIT / MIT), 3 parts of lauryl alcohol ester, 2 parts of polyurethane thickener , 25 parts of polyacrylate emulsion, 9.7 parts of deionized water.

[0036] The polyacrylate emulsion has a solid content of 45%, a pH of 8.5, a particle size of 0.20 microns, a viscosity of about 550 mPa.s, a minimum film-forming temperature of 18°C, and a glass transition temperature of 42°C.

[0037] The graphene is produced by t...

Embodiment 3

[0046] A water-based electrothermal coating based on graphene, which is composed of the following raw materials in parts by weight: 2 parts of propylene glycol, 0.15 parts of ethanolamine, 0.2 parts of polyoxyethylene polyoxyacrylic acid block copolymer, and 0.6 part of polymer copolymer alkylamine salt , 0.3 parts of non-silicone organic ester hydrocarbon, 3 parts of graphene, 42 parts of calcium carbonate, 0.1 part of 1,2-benzisothiazolin-3-one (BIT), 2-methyl-5-chloro- 0.05 parts of 4-isothiamidazol-3-one, 0.05 parts of 2-methyl-4-isothiamidazol-3-one (CMIT / MIT) tank preservative, 2 parts of lauryl alcohol ester, modified polyurea Thickener 1.5 parts, polyacrylate emulsion 20 parts, deionized water 28.05 parts.

[0047] The emulsion is a polyacrylate emulsion with a solid content of 42%, a pH of 8.3, a particle size of 0.18 microns, a viscosity of about 520mPa.s, a minimum film-forming temperature of 18°C, and a glass transition temperature of 42°C.

[0048] The graphene i...

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Abstract

The invention relates to the field of coatings and provides a graphene-based waterborne electric heating coating which has good base material adhesion force, good heat and cold circulating resistance and excellent electric heating performance and has a flexible paint film. The graphene-based waterborne electric heating coating is prepared from raw materials in parts by weight as follows: 1-3 parts of a freeze thawing stabilizer, 0.1-0.2 parts of a pH regulator, 0.1-0.3 parts of a wetting dispersant, 0.1-1 part of a hyperdispersant, 0.1-0.5 parts of a defoaming agent, 1-5 parts of graphene, 35-50 parts of calcium carbonate, 0.1-0.3 parts of an in-tank preservative, 1-3 parts of a coalescing agent, 1-2 parts of a thickening agent, 15-25 parts of emulsion and the balance of deionized water. Besides, the invention further provides a preparation method of the graphene-based waterborne electric heating coating.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a graphene-based water-based electrothermal coating and a preparation method thereof. Background technique [0002] Electrothermal coating is a new type of functional coating with excellent electrothermal properties developed on the basis of conductive coatings. It has broad application prospects in all aspects of production and life, such as building heating, industrial oven drying, petrochemical pipeline insulation Wait. Conductive fillers endow electrothermal coatings with electrical conductivity. Conductive fillers mainly include metal-based, carbon-based and other types. Among metals, gold, silver, and platinum have superior electrical conductivity, but are expensive, and are only used in military and aerospace fields; copper and aluminum are easily oxidized, resulting in performance degradation, which limits their use; nickel powder has a large specificity and is easy to sink to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D7/61C09D7/63C09D7/65C09D5/32C04B26/06
CPCC04B26/06C04B2111/00482C04B24/02C04B24/122C04B24/32C04B24/24C04B24/40C04B14/28C04B14/024C04B24/008C04B24/045C04B24/383C04B24/128C04B24/00C04B14/24C04B24/28C04B24/26
Inventor 王书传何文龙
Owner XINHE NEW MATERIALS CO LTD
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