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Method for preparing double-layer anti-reflection coating glass

An anti-reflection coating and anti-reflection technology, applied in coatings and other directions, can solve the problems of being unable to adapt to the development of cell technology and low light transmittance, and achieve the effect of simple preparation method and improved light transmittance

Active Publication Date: 2018-01-12
运研材料科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Solar photovoltaic effect, referred to as photovoltaic (PV), also known as photovoltaic effect (Photovoltaic), refers to the phenomenon of potential difference between uneven semiconductors or semiconductors and metals when illuminated; cells are the core of the entire photovoltaic industry According to the data provided by the China Photovoltaic Industry Association, my country’s battery production in the first half of 2017 was 32GW. According to statistics, black silicon technology, PERC technology, and SE battery technology have become the mainstream of current battery cell technology improvement. Enterprises generally use the above technologies to carry out technical transformation of production lines; these new cell technologies are mainly to improve the external electronic efficiency (EQE) of cells in the short-wavelength band (below 500nm) and long-wavelength band (above 800nm), but the current single-layer The light transmittance of anti-reflection coating technology in the short-wavelength band (below 500nm) and long-wavelength band (above 800nm) is very low, making it unable to adapt to the development of current cell technology

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  • Method for preparing double-layer anti-reflection coating glass
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  • Method for preparing double-layer anti-reflection coating glass

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Embodiment 1

[0036] see figure 1 As shown, the invention discloses a method for preparing glass with a double-layer anti-reflection coating, comprising the following steps:

[0037] (1) Gradually add 8 grams of tetraethyl orthosilicate (TEOS), 90 grams of water, and 13 grams of ethanol into a 250ml three-necked flask with magnetic stirring and temperature control, and slowly pour the mixture into the three-necked flask after magnetic stirring for 15 minutes. Add 1ml of acetic acid dropwise, finish dropping within 10 minutes, and react for 24 hours to obtain a nano-silica sol with a particle size of 5nm;

[0038] (2) Then add dropwise to the nano-silica sol 2 grams of 1099 (commercialized cationic waterborne polyurethane of Yunyan Material Technology (Shanghai) Co., Ltd.), stir evenly to obtain the first layer of anti-reflection coating;

[0039] (3) Put 2mm ultra-clear float glass into the first layer of anti-reflection coating for dip-coating, the lifting speed is 7000 mm per minute, a...

Embodiment 2

[0042] see figure 2 As shown, the invention discloses a method for preparing glass with a double-layer anti-reflection coating, comprising the following steps:

[0043] (1) Gradually add 7 grams of methyl silicate (TMOS), 80 grams of water, and 20 grams of isopropanol into a 250ml three-necked flask with magnetic stirring and temperature control, and then pour it into the three-necked flask after magnetic stirring for 15 minutes. Slowly add 1.5ml of ammonia water dropwise, finish dropping within 20 minutes, and react for 24 hours to obtain a nano-silica sol with a particle size of 10nm;

[0044] (2) Then add dropwise to the nano-silica sol 1088 (commercialized anionic water-based polyurethane of Yunyan Material Technology (Shanghai) Co., Ltd.) 1.5 grams, stir evenly to obtain the first layer of anti-reflection coating;

[0045] (3) Put 2mm ultra-clear float glass into the first layer of anti-reflection coating for dip-coating, the lifting speed is 6500 mm per minute, and t...

Embodiment 3

[0048] see image 3 As shown, the invention discloses a method for preparing glass with a double-layer anti-reflection coating, comprising the following steps:

[0049] (1) Gradually add 8 grams of tetraethyl orthosilicate (TEOS), 60 grams of water, and 33 grams of ethanol into a 250ml three-necked flask with magnetic stirring and temperature control, and slowly pour the mixture into the three-necked flask after magnetic stirring for 15 minutes. Add 1ml of nitric acid dropwise, finish dropping within 10 minutes, and react for 24 hours to obtain a nano-silica sol with a particle size of 15nm;

[0050] (2) Then add 1ml Prox AM 219R (commercialized cationic acrylic emulsion of France Pioneer) dropwise to the nano-silica sol, and stir evenly to obtain the first layer of anti-reflection coating;

[0051] (3) Put 2mm ultra-clear float glass into the first layer of anti-reflection coating for dip-coating, the lifting speed is 2000 mm per minute, and then bake the dip-coated glass at 1...

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Abstract

The invention provides a method for preparing double-layer anti-reflection coating glass. The method comprises the following steps: (1) gradually adding tetraethoxysilane or tetramethyl orthosilicateas well as water and an alcohol solvent into a three-mouth flask, dripping a pH value regulator into the three-mouth flask after stirring, and reacting to prepare nano silicon dioxide sol; (2) addingan organic polymer into the nano silicon dioxide sol, and uniformly stirring so as to obtain a first anti-reflection coating layer; (3) coating the first anti-reflection coating layer onto glass through a coating process, baking the coated glass for 2 minutes so as to obtain glass coated with the first anti-reflection coating layer; (4) finally, coating a second anti-reflection coating layer ontothe glass coated with the first anti-reflection coating layer through a coating process, and baking the glass coated with two reflective coatings for 5 minutes, so as to obtain the glass coated with double anti-reflection coatings. According to the double-layer anti-reflection coating glass prepared in the invention, the light transmittance at the short-wave band (500nm or less) and long-wave band(800nm or more) is improved.

Description

technical field [0001] The invention relates to a preparation method of coated glass, in particular to a preparation method of double-layer anti-reflection coating glass. Background technique [0002] Single-layer anti-reflection glass has developed rapidly in the past decade, especially in the fields of photovoltaic glass and art display glass. [0003] Solar photovoltaic effect, referred to as photovoltaic (PV), also known as photovoltaic effect (Photovoltaic), refers to the phenomenon of potential difference between uneven semiconductors or semiconductors and metals when illuminated; cells are the core of the entire photovoltaic industry According to the data provided by the China Photovoltaic Industry Association, my country’s battery production in the first half of 2017 was 32GW. According to statistics, black silicon technology, PERC technology, and SE battery technology have become the mainstream of current battery cell technology improvement. Enterprises generally use...

Claims

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Application Information

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IPC IPC(8): C03C17/34C09D1/00C09D7/61
Inventor 周小三马永龙王冬霞王鑫
Owner 运研材料科技(上海)有限公司