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Solar module coating with self-cleaning and anti-reflection functions and preparation method

A solar module, dual-function technology, applied in the field of solar power generation, can solve problems such as labor-consuming, material resources, hot spot effect, lack of dust-proof ability, etc., to prevent dust accumulation, reduce light reflection, and improve power generation efficiency Effect

Inactive Publication Date: 2020-04-17
SUZHOU WHOLENANO NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing anti-reflection coating application process usually needs to be cured at a high temperature of 800°C and above, and it needs to be completed in the glass sintering process. The process is complicated. Therefore, photovoltaic modules with anti-reflection coatings are usually produced when glass It needs to be coated with anti-reflection coating and fired in a kiln, but cannot be directly applied to the installed photovoltaic power station
[0003] In addition, dust will adhere to photovoltaic modules when used in an outdoor environment. The presence of dust will not only reduce the power generation efficiency of photovoltaic modules, but may also cause hot spot effects, and the cleaning of dust will consume a lot of manpower and material resources, increasing photovoltaic Power Station Operating Costs
However, AR and AR coatings provide anti-reflection and anti-reflection effects, but usually do not have the ability to resist dust

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] A method for preparing a solar module coating with dual functions of self-cleaning and anti-reflection, comprising the following steps: in parts by weight, mixing 40-80 parts of intermediate A and 10-50 parts of intermediate B, and then adding 1 ~5 parts of intermediate C, after stirring at 25~40°C for 4~24 hours, add 1~10 parts of nano-silica and 0.1~2 parts of curing agent in sequence, and obtain the required coating solution after stirring at room temperature, the coating solution Coating or spraying onto the surface of the applied material, curing at low temperature (120°C) or at room temperature.

[0022] The preparation steps of intermediate A are: dissolving silane into a mixed solvent composed of water and an organic solvent to prepare a silane solution with a mass fraction of 1-5%, then adding an acid catalyst, and stirring at 25-40°C for more than 4 hours , hydrolyzed to obtain the desired intermediate A.

[0023] The preparation steps of intermediate B are a...

Embodiment 1

[0032] A method for preparing a solar module coating with self-cleaning and anti-reflection dual functions, comprising the following steps:

[0033] Step 1: Preparation of Mixed Solvent

[0034] Mix water and ethanol at a ratio of 1:20 to obtain a mixed solvent;

[0035] Step 2: Preparation of Intermediate A

[0036] The tetraethoxysilane of 5g is added in the mixed solvent that 95g step one obtains, and preparation obtains the silane solution that mass fraction is 5%, adds 5 * 10 -2 g of acetic acid as an acid catalyst, stirred at 25°C for 5h, and hydrolyzed to obtain the desired intermediate A;

[0037]Step 3: Preparation of Intermediate B

[0038] The (trifluoromethyl) trimethylsilane of 5g is added in the mixed solvent that 95g step one obtains, and preparation obtains the mass fraction and is 5% fluorine-containing silane solution, adds 5 * 10 -2 g of hydrochloric acid as acid catalyst, stirred at 25 DEG C for 5h, hydrolyzed to obtain the desired intermediate B;

[0...

Embodiment 2

[0041] A method for preparing a solar module coating with self-cleaning and anti-reflection dual functions, comprising the following steps:

[0042] Step 1: Preparation of Mixed Solvent

[0043] Mix water and ethanol at a ratio of 1:20 to obtain a mixed solvent;

[0044] Step 2: Add 5g of tetraethoxysilane to the mixed solvent obtained in 95g of step 1 to prepare a silane solution with a mass fraction of 5%, add 5 × 10 -2 g of acetic acid as an acid catalyst, stirred at 25°C for 5h, and hydrolyzed to obtain the desired intermediate A;

[0045] Step 3: Add 5g (trifluoromethyl)trimethylsilane to 95g of the mixed solvent obtained in step 1 to prepare a 5% fluorine-containing silane solution with a mass fraction, add 5 × 10 -2 g of hydrochloric acid as an acid catalyst, stirred at 25°C for 5 hours, and hydrolyzed to obtain the desired intermediate B;

[0046] Step 4: Mix 40g of intermediate A and 50g of intermediate B, then add 5g of γ-ureidopropyl-trimethoxysilane, stir at 40°...

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Abstract

The invention discloses a solar module coating with self-cleaning and anti-reflection functions and a preparation method thereof. The solar module coating is prepared from an intermediate A, an intermediate B, an intermediate C, nano silicon dioxide and a curing agent, the intermediate A is hydrolyzed silane, the intermediate B is hydrolyzed fluorine-containing silane, the intermediate C is a silane coupling agent, and the particle size of the nano silicon dioxide is less than 50nm. The invention provides the solar module coating with self-cleaning and anti-reflection functions and the preparation method thereof. The anti-reflection effect and the dustproof cleaning function are realized for the solar module coating with the self-cleaning and anti-reflection functions; the coating can be directly applied to an existing photovoltaic power station; compared with the prior art, high-temperature sintering is not needed, after the photovoltaic power station is installed, room-temperature curing is carried out through simple spraying, the adhesiveness is good, the stability is high, the long-term reliability is achieved, the power generation efficiency of the photovoltaic module can be improved, the operation and maintenance cost of the photovoltaic power station is reduced, and rapid and healthy development of the photovoltaic industry is promoted.

Description

technical field [0001] The invention belongs to the technical field of solar power generation, and in particular relates to a solar module coating with dual functions of self-cleaning and antireflection and a preparation method thereof. Background technique [0002] Photovoltaic modules are devices that convert light energy into electrical energy. my country is the largest manufacturer of photovoltaic modules in the world today. The structure of the photovoltaic module includes glass / EVA / battery / EVA / backsheet from top to bottom, and the photovoltaic module is formed by heating and laminating and encapsulating EVA. The photovoltaic module has high requirements on the light transmittance of the glass, and the glass can pass through Increase the anti-reflection and anti-reflection coating to improve its light transmittance. The existing anti-reflection coating application process usually needs to be cured at a high temperature of 800°C and above, and it needs to be completed i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D5/16C09D7/61
CPCC09D4/00C09D183/08C09D5/1687C09D5/1675C09D5/1618C08G77/24C08K2201/011C08K2201/003C08L2203/20C08K3/36
Inventor 朱红军
Owner SUZHOU WHOLENANO NEW MATERIAL TECH CO LTD
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