Graphene anticorrosion coating for photovoltaic device and preparation method

A technology for photovoltaic equipment and anti-corrosion coatings, applied in the direction of anti-corrosion coatings, microsphere preparation, microcapsule preparations, etc., which can solve the problems of inability to guarantee the anti-corrosion effect and barrier performance of coatings, the inability to solve graphite dispersion well, and the inability to effectively use photovoltaic equipment, etc. Problems, achieve ideal barrier performance, low raw material cost and processing cost, and good anti-corrosion effect

Active Publication Date: 2018-02-16
玛雅森林(北京)国际科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, Yu Haibin and others invented a preparation method of graphene-based anti-corrosion coatings (China Invention Patent Application No. 201710153171.1). Firstly, graphene oxide is dispersed in water or oily solvent by ultrasonic to obtain a pre-dispersion liquid; Add graphene, and then ultrasonically disperse the graphene oxide to absorb graphene and disperse the graphene evenly to obtain a composite dispersion; filter the composite dispersion to obtain a composite slurry; add the composite slurry to the water-based resin or oleoresin, and adding additives, stirring, to obtain graphene-based anti-corrosion coatings, but the preparation process of this method is complicated, and can not solve the problem of graphite dispersion
In addition, Hu Qihui and others invented a modified graphene and a coating containing the modified graphene (China Invention Patent Application No. 201610997544.9). In this method, graphene oxide is first added to a

Method used

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Examples

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Effect test

Embodiment 1

[0040] A kind of graphene anticorrosion coating for photovoltaic equipment and preparation method thereof, the concrete process of its preparation anticorrosion coating is as follows:

[0041] Heat 10kg of polyethylene wax while stirring slowly to make it melt, the stirring speed is 200r / min, and the heating temperature is 85°C. Then add 0.25kg of fatty alcohol polyoxyethylene ether and 0.15kg of octadecyltrimethylammonium chloride as emulsifiers, and increase the stirring speed to 900r / min at the same time to make it fully mixed. Then add emulsified water at the same temperature, and add 1 g of water every 1 min until a white creamy emulsion is obtained. Then the temperature is lowered to normal temperature, and the stirring speed is slowed down to 600r / min, and 5kg carboxymethylcellulose solution is added as a thickening agent, and stirred evenly to obtain a paraffin wax emulsion; 3.9kg graphene dry powder, 0.1kg dodecylbenzene Sodium sulfonate and 96kg N, N-dimethylformami...

Embodiment 2

[0044] A kind of graphene anticorrosion coating for photovoltaic equipment and preparation method thereof, the concrete process of its preparation anticorrosion coating is as follows:

[0045] Heat 10kg of microcrystalline paraffin while stirring slowly to make it melt, the stirring speed is 200r / min, and the heating temperature is 90°C. Then add 0.3kg of fatty alcohol polyoxyethylene ether and 0.2kg of octadecyltrimethylammonium chloride as emulsifiers, and increase the stirring speed to 700r / min at the same time to make it fully mixed. Then add emulsified water at the same temperature, and add 1 g of water every 1 min until a white creamy emulsion is obtained. Then the temperature is lowered to normal temperature, and the stirring speed is slowed down to 400r / min, 4kg carboxymethyl cellulose solution is added as a thickener, stirred evenly, to obtain a paraffin wax emulsion; 4.9kg graphene dry powder, 0.1kg dodecyl sulfonate Sodium bicarbonate and 95kg N-methylpyrrolidone w...

Embodiment 3

[0048] A kind of graphene anticorrosion coating for photovoltaic equipment and preparation method thereof, the concrete process of its preparation anticorrosion coating is as follows:

[0049] Heat 10kg of chlorinated paraffin while stirring slowly to make it melt, the stirring speed is 180r / min, and the heating temperature is 90°C. Then add 0.2 kg of fatty alcohol polyoxyethylene ether and 0.1 kg of octadecyltrimethylammonium chloride as emulsifiers, and at the same time increase the stirring speed to 800 r / min to make it fully mixed. Then add emulsified water at the same temperature, and add 1 g of water every 1 min until a white creamy emulsion is obtained. Then the temperature is lowered to normal temperature, and the stirring speed is slowed down to 500r / min, 3kg carboxymethyl cellulose solution is added as a thickening agent, stirred evenly, to obtain a paraffin wax emulsion; 3.9kg graphene dry powder, 0.1kg polyvinyl alcohol and 96kg Dimethyl sulfoxide was mixed, and u...

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Abstract

The invention belongs to the technical field of preparation of anticorrosion coatings, and provides a graphene anticorrosion coating for a photovoltaic device and a preparation method. The method comprises the following steps: preparing a paraffin emulsion through paraffin; preparing graphene suspension through graphene; mixing the paraffin emulsion and the graphene suspension according to proportion; then adding a polyquaternium flocculating agent; then carrying out emulsion co-coagulation, extraction filtration and micro-crosslinking pelletizing to obtain a paraffin packing loaded with graphene; the paraffin packing loaded with the graphene is added to the coating before the coating is put into use, and the coating is put into use after being uniformly stirred; the coating is high in anticorrosion performance and applicable to the photovoltaic device. Compared with a traditional method, the preparation method has the advantages that the prepared graphene coating is outstanding in graphene dispersing uniformity, density and stability, good in anticorrosion effect, and stable in coating performance; moreover, the whole preparation process is simple, the raw material cost and the processing cost are low, and the method is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion coating preparation, and provides a graphene anticorrosion coating for photovoltaic equipment and a preparation method. Background technique [0002] In today's era of resource depletion, solar energy resources, as an emerging resource, have a particularly bright prospect for its promotion and application. The photovoltaic industry is rising rapidly under the circumstances of energy and environmental crises. Photovoltaic industry is an emerging industry in my country, and it is a high-tech and capital-intensive industry. Since the 21st century, my country's photovoltaic industry has developed rapidly. By 2008, my country's photovoltaic cell production accounted for about one-third of the world's total production. The development of photovoltaic equipment ranges from the production of silicon materials, silicon wafer processing, production of solar cells and components, and the corresponding...

Claims

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Application Information

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IPC IPC(8): C09D5/08B01J13/04
CPCB01J13/043C09D5/08
Inventor 陈庆昝航
Owner 玛雅森林(北京)国际科技有限公司
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