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Acrylic acid ultraviolet light conversion coating for photovoltaic back film and preparation method of coating

A technology of acrylic and ultraviolet light, which is applied in photovoltaic power generation, electrical components, circuits, etc., can solve the problems of photovoltaic module efficiency improvement without any help, photovoltaic module power reduction, easy yellowing, etc., and achieve the effect of improving photoelectric conversion efficiency

Inactive Publication Date: 2014-03-19
JIANGSU GORICHEN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The conventional KPE / TPE structure back film does not help to improve the efficiency of photovoltaic modules except for protecting the cells, and the E side of the above back film is prone to yellowing and cracking under ultraviolet radiation, which eventually leads to a significant drop in the power of photovoltaic modules

Method used

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  • Acrylic acid ultraviolet light conversion coating for photovoltaic back film and preparation method of coating
  • Acrylic acid ultraviolet light conversion coating for photovoltaic back film and preparation method of coating
  • Acrylic acid ultraviolet light conversion coating for photovoltaic back film and preparation method of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An acrylic UV-light conversion coating for photovoltaic backsheets

[0023] In this coating that is 100 parts by weight, comprise following composition:

[0024]

[0025] Preparation steps: first add 20 parts by weight of spherical nano-titanium dioxide, 10 parts of Eu-doped titanium dioxide, 1 part of dispersant KH560 and 10 parts of distilled water into a star-shaped ball mill for dispersion at a speed of 500 rpm, and stop after 1 hour. That is, a titanium dioxide dispersion liquid was obtained.

[0026] 2. Next, add 53 parts by weight of acrylic resin, 2 parts of leveling agent BYK-333, 2 parts of defoamer BYK024, 2 parts of antioxidant 2,6-di-tert-butyl-4-methyl Phenol was sequentially added to the titanium dioxide dispersion, and then the above-mentioned mixed solution was added to a mixer at 60° C. and stirred at a speed of 800 pm. After 30 minutes, a uniform coating solution was obtained.

[0027] Performance test:

[0028] Above-mentioned steps make coatin...

Embodiment 2

[0031] An acrylic UV-light conversion coating for photovoltaic backsheets

[0032] In this coating that is 100 parts by weight, comprise following composition:

[0033]

[0034] Preparation steps: first add 30 parts by weight of spherical nano-titanium dioxide, 7 parts of Eu-doped titanium dioxide, 2 parts of dispersant KH520 and 10 parts of distilled water into a star-shaped ball mill for dispersion at a speed of 900 rpm, and stop after 1 hour. That is, a titanium dioxide dispersion liquid was obtained.

[0035] 2. Next, add 46 parts by weight of acrylic resin, 2 parts of leveling agent BYK-310, 1 part of defoamer BYK052, and 1 part of antioxidant tetrakis (β-(3,5-di-tert-butyl -4-Hydroxyphenyl)propionic acid)pentaerythritol was added to the titanium dioxide dispersion in turn, and then the above mixed solution was added to the mixer at 30°C and stirred at a speed of 1000pm. After 30 minutes, a uniform coating solution was obtained.

[0036] Performance test:

[0037] A...

Embodiment 3

[0041] An acrylic UV-light conversion coating for photovoltaic backsheets

[0042] In this coating that is 100 parts by weight, comprise following composition:

[0043]

[0044] Preparation steps: first, 19 parts by weight of spherical nano-titanium dioxide, 5 parts of Eu-doped titanium dioxide, 1 part of dispersant is a 1:1 mixture of KH520 and KH560 and 10 parts of distilled water are added to a star ball mill for dispersion , the rotation speed is 600rpm, stop after 1 hour, and the titanium dioxide dispersion liquid is obtained.

[0045] 2. Next, add 60 parts by weight of acrylic resin, 1 part of leveling agent BYK-300, 2 parts of defoamer BYK501, 2 parts of antioxidant 2,6-di-tert-butyl-4-methyl Phenol was sequentially added to the titanium dioxide dispersion, and then the above mixed solution was added to a mixer at 80° C. and stirred at a speed of 500 pm. After 30 minutes, a uniform coating solution was obtained.

[0046] Above-mentioned steps make coating solution ...

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Abstract

The invention discloses an acrylic acid ultraviolet light conversion coating for a photovoltaic back film and a preparation method of the coating. 100 parts by weight of the ultraviolet light conversion coating include 40-60 parts of acrylic acid resin, 5-10 parts of water, 10-30 parts of spherical nano titanium dioxide and 5-10 parts of Eu-doped nano titanium dioxide. The ultraviolet light conversion coating is coated on the surface of the photovoltaic back film, so that ultraviolet light entering the photovoltaic back film is converted into light (400-800nm) matched with the absorption wavelength of a solar battery and is diffused onto a battery piece, and the photovoltaic conversion efficiency of a photovoltaic module is effectively improved while the back film is protected.

Description

technical field [0001] The invention belongs to the technical field of photovoltaics, and in particular relates to an acrylic ultraviolet light conversion coating for photovoltaic back film and a preparation method thereof Background technique [0002] Solar modules are mainly composed of glass, EVA, battery sheets, back film, and frame. The glass and back film encapsulate the solar cells to protect the solar cells from the influence of the environment and their power generation efficiency. [0003] The conventional KPE / TPE structure back film does not help to improve the efficiency of photovoltaic modules except for protecting the cells, and the E side of the above back film is prone to yellowing and cracking under ultraviolet radiation, which eventually leads to a significant drop in the power of photovoltaic modules. Contents of the invention [0004] The object of the present invention is to provide an acrylic ultraviolet light conversion coating for photovoltaic back ...

Claims

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Application Information

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IPC IPC(8): H01L31/0216
CPCH01L31/02168Y02E10/50
Inventor 魏家靖沈晓东杨小旭司琼曼亚珂
Owner JIANGSU GORICHEN NEW MATERIALS
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