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A kind of graphene-modified aluminum foil hydrophilic coating and its preparation and application method

A graphene modification, graphene technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as uneven distribution, affect the performance uniformity of hydrophilic coatings, etc. Improved thermal conductivity, improved continuous antibacterial and antifungal effects, and good hydrophilic properties

Active Publication Date: 2018-04-13
JIANGSU ALCHA ALUMINUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the uneven distribution of heavy metal ions and metal oxides such as titanium dioxide in the hydrophilic coating, it will eventually affect the performance uniformity of the hydrophilic coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare the graphene-modified aluminum foil hydrophilic coating as follows:

[0028] 1) Under the condition of magnetic field strength 5000GS and ultrasonic wave, slowly add graphene powder into alcohol ether solvent and stir for 30min at 1500rpm to make it uniform to form graphene slurry;

[0029] 2) adding silver nanopowder and titanium dioxide nanopowder to the graphene slurry and stirring it at 1500 rpm for 60min to make it evenly mixed;

[0030] 3) Add acrylic resin and deionized water, and stir evenly at 1500 rpm for 40 minutes;

[0031] 4) Add additives, stir evenly at 1500 rpm for 20min to obtain graphene-modified aluminum foil hydrophilic coating, wherein by mass percentage, acrylic resin 27%, alcohol ether solvent 15%, graphene powder 8%, silver nanometer Powder 2%, titanium dioxide nano powder 2%, additives 2% (EL3638 defoamer 0.5%, EL2519 leveling agent 0.6%, ELT830 rheology agent 0.1% and EL-460 drier 0.8%), the rest is deionized water.

[0032] The usin...

Embodiment 2

[0039] Prepare the graphene-modified aluminum foil hydrophilic coating as follows:

[0040] 1) Under the condition of magnetic field strength 5000GS and ultrasonic wave, slowly add graphene powder into alcohol ether solvent and stir for 30min at 1500rpm to make it uniform to form graphene slurry;

[0041] 2) adding silver nanopowder and titanium dioxide nanopowder to the graphene slurry and stirring it at 1500 rpm for 60min to make it evenly mixed;

[0042] 3) Add acrylic resin and deionized water, and stir evenly at 1500 rpm for 40 minutes;

[0043] 4) Add additives, and stir evenly at 1500 rpm for 20 minutes to obtain a graphene-modified aluminum foil hydrophilic coating, wherein by mass percentage, 19% of acrylic resin, 14% of alcohol ether solvent, 5% of graphene powder, and silver nanometer Powder 3%, titanium dioxide nano powder 3%, additives 1% (EL3638 defoamer 0.2%, EL2519 leveling agent 0.3%, ELT830 rheology agent 0.1% and EL-460 drier 0.4%), the rest is deionized w...

Embodiment 3

[0051] Prepare the graphene-modified aluminum foil hydrophilic coating as follows:

[0052]1) Under the condition of magnetic field strength 5000GS and ultrasonic wave, slowly add graphene powder into alcohol ether solvent and stir for 30min at 1500rpm to make it uniform to form graphene slurry;

[0053] 2) adding silver nanopowder and titanium dioxide nanopowder to the graphene slurry and stirring it at 1500 rpm for 60min to make it evenly mixed;

[0054] 3) Add acrylic resin and deionized water, and stir evenly at 1500 rpm for 40 minutes;

[0055] 4) Add additives, stir evenly at 1500 rpm for 20min to obtain a graphene-modified aluminum foil hydrophilic coating, wherein by mass percentage, acrylic resin 14%, alcohol ether solvent 20%, graphene powder 12%, silver nanometer Powder 5%, titanium dioxide nano powder 7%, additives 3% (EL3638 defoamer 0.6%, EL2519 leveling agent 0.9%, ELT830 rheology agent 0.3% and EL-460 drier 1.2%), the rest is deionized water.

[0056] The us...

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PUM

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Abstract

The invention discloses graphene modified aluminum foil hydrophilic coating. The graphene modified aluminum foil hydrophilic coating is composed of the following components in percentage by mass: 14-27% of acrylic resin, 14-27% of an alcohol ether solvent, 5-12% of graphene powder, 1-5% of silver nano powder, 2-7% of titanium dioxide powder, 1-3% of auxiliaries, and the balance of water. A preparation method of the graphene modified aluminum foil hydrophilic coating comprises the following steps: in the presence of a magnetic field and ultrasonic wave, dispersing graphene powder into a solvent, and sequentially adding silver nano powder, titanium dioxide nano powder, acrylic resin and auxiliaries. By coating priming coating and then coating graphene modified aluminum foil hydrophilic coating on the surface of a clean aluminum foil, a hydrophilic aluminum foil is obtained. The graphene modified aluminum foil hydrophilic coating and the hydrophilic aluminum foil obtained by adopting the coating have stable, durable and uniform antibacterial activity and mouldproof and corrosion preventing functions as well as higher thermal conductivity.

Description

technical field [0001] The invention relates to a hydrophilic coating, in particular to a graphene-modified aluminum foil hydrophilic coating. The invention also relates to a preparation method and application method of the graphene-modified aluminum foil hydrophilic coating. Background technique [0002] Coating refers to a type of liquid or solid material that can form a thin film on the surface of an object under certain conditions to protect, decorate or have other special functions (insulation, rust prevention, mildew resistance, heat resistance, etc.). After the surface of the material is coated with a coating, the angle formed by the water drop standing on the material plane is called the hydrophilic angle. The smaller the hydrophilic angle, the better the hydrophilicity; otherwise, the larger the hydrophilic angle, the worse the hydrophilicity. At present, hydrophilic coatings have been widely used in air-conditioning, home furnishing, medical care and other fields....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D5/14C09D7/61B05D7/00B05D7/14B05D3/02
CPCB05D3/0254B05D7/148B05D7/574B05D2202/25B05D2401/21B05D2504/00C08K3/04C08K3/08C08K3/22C08K2003/0806C08K2003/2241C08K2201/011C09D5/14C09D7/61C09D133/00B05D2420/01
Inventor 张全成薛山张敏达朱军缪晓锋吴永新
Owner JIANGSU ALCHA ALUMINUM CO LTD
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