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Graphene-based waterborne acrylic paint and preparation method thereof

An alkene-based water-based, graphene technology, used in antifouling/underwater coatings, anti-corrosion coatings, coatings, etc., can solve the problems of inability to achieve the excellent performance of graphene, reduce dispersion stability, etc., to achieve enhanced bonding force, distance The effect of shortening and increasing force

Active Publication Date: 2017-07-28
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, flake graphene is easy to agglomerate to form a stacked graphite structure, which cannot realize the excellent performance of graphene on the one hand, and reduces the stability of its dispersion on the other hand.

Method used

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  • Graphene-based waterborne acrylic paint and preparation method thereof
  • Graphene-based waterborne acrylic paint and preparation method thereof
  • Graphene-based waterborne acrylic paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) drying the monolayer graphene oxide dispersion by atomization drying method to obtain graphene oxide microspheres, the atomization temperature is 130°C;

[0026] (2) placing the graphene oxide microspheres obtained in step (1) in hydrazine hydrate vapor, and reducing them for 1 hour at 60° C. to obtain reduced graphene oxide microspheres;

[0027] (3) Putting the reduced graphene oxide microspheres obtained in step (2) into a tube furnace, continuously feeding nitrogen, and raising the temperature to 1000° C., and keeping it warm for 1 hour to obtain paper ball-shaped graphene microspheres;

[0028] (4) Stir 0.3 parts of the paper ball shape graphene microspheres obtained in step (3) with 100 parts of pure acrylic emulsion, and ultrasonically disperse, then add 15 parts of water, 0.3 parts of dispersant, 0.1 part of preservative, 0.3 1 part of film former, 0.1 part of leveling agent, 4 parts of thickener, 0.3 part of defoamer, 10 parts of calcium carbonate, 10 parts...

Embodiment 2

[0031] (1) drying the monolayer graphene oxide dispersion by atomization drying method to obtain graphene oxide microspheres, the atomization temperature is 130°C;

[0032](2) placing the graphene oxide microspheres obtained in step (1) in hydrazine hydrate vapor, and reducing them for 1 hour at 90° C. to obtain reduced graphene oxide microspheres;

[0033] (3) Putting the reduced graphene oxide microspheres obtained in step (2) into a tube furnace, continuously feeding nitrogen, and raising the temperature to 1000° C., and keeping it warm for 1 hour to obtain paper ball-shaped graphene microspheres;

[0034] (4) Stir 0.3 parts of the paper ball shape graphene microspheres obtained in step (3) with 100 parts of pure acrylic emulsion, and ultrasonically disperse, then add 15 parts of water, 0.3 parts of dispersant, 0.1 part of preservative, 0.3 1 part of film former, 0.1 part of leveling agent, 4 parts of thickener, 0.3 part of defoamer, 10 parts of calcium carbonate, 10 parts ...

Embodiment 3

[0037] (1) drying the monolayer graphene oxide dispersion by atomization drying method to obtain graphene oxide microspheres, the atomization temperature is 130°C;

[0038] (2) placing the graphene oxide microspheres obtained in step (1) in hydrazine hydrate vapor, and reducing them for 24 hours at 90° C. to obtain reduced graphene oxide microspheres;

[0039] (3) Putting the reduced graphene oxide microspheres obtained in step (2) into a tube furnace, continuously feeding nitrogen, and raising the temperature to 1000° C., and keeping it warm for 1 hour to obtain paper ball-shaped graphene microspheres;

[0040] (4) Stir 0.3 parts of the paper ball shape graphene microspheres obtained in step (3) with 100 parts of pure acrylic emulsion, and ultrasonically disperse, then add 15 parts of water, 0.3 parts of dispersant, 0.1 part of preservative, 0.3 1 part of film former, 0.1 part of leveling agent, 4 parts of thickener, 0.3 part of defoamer, 10 parts of calcium carbonate, 10 par...

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Abstract

The invention discloses a graphene-based waterborne acrylic paint and a preparation method thereof. The paint is prepared by mixing the following raw materials in parts by weight: 100 parts of an acrylic resin emulsion, 0.1-1 part of spitball graphene microspheres, 30-60 parts of an inorganic filler, 9-12 parts of an assistant and 10-20 parts of water. The spitball graphene microspheres with good mechanical property and elasticity can be obtained through spray drying and two-step method reduction. The spitball graphene microspheres are capable of effectively absorbing shock after being added to the paint, so that the abrasive resistance of a coating is improved and the chemical corrosion resistance can be improved. The spitball graphene microspheres have a unique microstructure, so that graphene can be effectively prevented from being stacked, the phenomena of aggregation and precipitation of the graphene in the paint are avoided and the overall stability of the paint is greatly improved.

Description

technical field [0001] The invention belongs to the field of coatings, and relates to a graphene-based water-based acrylic coating and a preparation method thereof. Background technique [0002] Coatings are used in a wide range of fields. In architectural coatings, furniture, vehicles, toys, ships and other industries, the choice of coatings often plays a key role. Coatings can be divided into oil-based and water-based coatings according to the type of solvent. At present, more than 80% of our country uses oil-based coatings. These paints use various organic solvents as dispersion and dilution media, and organic substances will evaporate during use and cause air pollution. In recent years, people have realized that the formaldehyde emitted by oil-based paints may be an important cause of cancer, so the research on water-based paints is also becoming more and more popular. Compared with traditional solvent-based oil-based paints, the environmental protection advantages of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/08C09D5/14
CPCC08K7/18C09D5/08C09D5/14C09D133/04C09D7/70
Inventor 高超陈琛韩燚
Owner HANGZHOU GAOXI TECH CO LTD
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