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A method for preparing fluorine-containing self-cleaning coatings on field solar panels

A technology for solar panels and self-cleaning coatings, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problem of difficult to achieve the curing temperature of fluorine-containing polymers

Active Publication Date: 2022-04-05
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that it is difficult to achieve the curing temperature of fluorine-containing polymers on the surface of solar panels in the field, the purpose of the present invention is to provide a method for preparing fluorine-containing self-cleaning coatings on solar panels in the field, a method for preparing fluorine-containing coatings at a lower temperature Polymer Coating Method

Method used

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  • A method for preparing fluorine-containing self-cleaning coatings on field solar panels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of fluorine-containing self-cleaning coating is prepared on the solar panel in the field, and it is prepared according to the following steps:

[0021] (1) Mix 30 mL of water, 10 mL of FEP emulsion (60% solid content) and 10 mL of polyethyl silicate 40 at room temperature and stir rapidly for 5 min to form a mixed emulsion;

[0022] (2) Immediately apply the above-mentioned emulsion on the surface of the solar cell within 1 hour, first place the solar cell panel horizontally, add the obtained emulsion onto the solar cell panel, apply 0.5 mL per square decimeter, and quickly spread it with a non-woven fabric Apply evenly; tilt the solar panel at 60 degrees for 45 minutes to drain excess emulsion;

[0023] (3) Transfer the solar panel to an oven, heat it at 80 °C for 5 h, and take it out to form a FEP self-cleaning coating on the solar panel.

[0024] figure 1 For comparison of the photos of only coating the FEP emulsion coating and the coating of the present inv...

Embodiment 2

[0026] A kind of preparation FEP and PFA self-cleaning coating on the field solar panel, prepares as follows:

[0027] (1) Mix 30 mL water, 5 mL FEP emulsion (60% solid content), 5 mL PFA emulsion (60% solid content) and 10 mL polyethylsilicate 40 at room temperature and stir rapidly for 5 min to form a mixture Emulsion, this emulsion must be used within 1 hour after making;

[0028] (2) Immediately apply the above emulsion on the surface of the solar cell, first place the solar cell panel horizontally, add the obtained emulsion onto the solar cell panel, apply 0.5 mL per square decimeter, and quickly coat it with a non-woven fabric Evenly; tilt the solar panel at 60 degrees for 45 minutes to drain excess liquid;

[0029] (3) Transfer the solar panel to an oven, hold it at 80°C for 5 h, and take it out to form a fluorine-containing self-cleaning coating.

Embodiment 3

[0031] A kind of preparation FEP and PFA self-cleaning coating on the field solar panel, prepares as follows:

[0032] (1) Mix 30 mL water, 5 mL FEP emulsion (60% solid content), 5 mL PFA emulsion (60% solid content) and 10 mL polyethylsilicate 40 at room temperature and stir rapidly for 5 min to form a mixture Emulsion, this emulsion must be used within 1 hour after making;

[0033] (2) In sunny and windless weather, immediately apply the above-mentioned emulsion on the surface of the solar cell, place the solar cell panel horizontally first, add the obtained emulsion onto the solar cell panel, and apply 0.5 mL per square decimeter, And quickly spread evenly with non-woven fabric; tilt the solar panel at 60 degrees for 45 minutes to drain excess liquid;

[0034] (3) The coating is cured under light and heating conditions to form a fluorine-containing self-cleaning coating, and it must not touch the surface of the solar cell for at least 48 hours to allow the coating to dry. ...

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Abstract

The invention discloses a method for preparing a fluorine-containing self-cleaning coating on a solar panel in the field. The emulsion of a fluorine-containing polymer is mixed with polyethyl silicate and stirred rapidly to form a mixed emulsion; the emulsion is immediately coated on The surface of the solar cell, and tilt to drain the excess liquid; cure the coating at 80°C or under the condition of light heating. The method does not need to heat the coating above the melting temperature of the fluorine-containing polymer, does not damage the assembled solar cell at all, and is convenient for modifying the self-cleaning coating on the surface of the solar cell in the field.

Description

technical field [0001] The invention relates to the technical field of surface coatings, in particular to a method for preparing a fluorine-containing self-cleaning coating on an outdoor solar panel. Background technique [0002] A solar cell is a device that converts sunlight into electricity. Some commercial solar cells are covered with tempered glass panels to protect their internal structure. Solar cell power plants in remote areas cannot clean the surface of solar cells frequently due to lack of manpower, fresh water, etc., and dust falling on the surface can cause the efficiency of solar cells to drop by more than 50% (Bergin M H , Ghoroi C , Dixit D , et al. Large Reductions in Solar Energy Production Due to Dust and Particulate Air Pollution[J]. Environmental Science & Technology Letters, 2017:acs.estlett.7b00197.). In recent years, solar cell surface self-cleaning technology has been greatly developed (Difei F , Binghai D , Shimin W , et al. Research Progress of S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/0216H02S40/10
CPCH01L31/18H01L31/02167H02S40/10Y02E10/50
Inventor 崔大祥张放为张芳卢玉英葛美英焦靖华阳靖峰王亚坤
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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