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High-hardness anti-reflection (AR) coating liquid and preparation method thereof

An AR coating, high hardness technology, applied in the coating and other directions, can solve the AR coating hardness can not meet the market demand of high hardness AR coating, affect the appearance and performance of glass, glass coating layer scratches and other problems, to achieve good repair effect , the effect of enhancing structural properties and increasing hardness

Active Publication Date: 2019-06-07
DONGGUAN CSG SOLAR GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this method improves the anti-reflection rate, the particle size of the synthesized template emulsion can only reach 90-120nm, and the hardness of the prepared AR coating cannot meet the market demand for high-hardness AR coatings.
[0004] The hardness of the mainstream AR coating solution in the market is low (≤3H), which can easily cause scratches on the glass coating layer during component installation and use, affecting the appearance and performance of the glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A kind of preparation method of high hardness AR coating solution of the present embodiment, comprises the following steps (the following components are all by mass percentage):

[0057] Synthesis of step a, fine particle size self-crosslinking styrene-acrylic emulsion:

[0058] a1) Add 53% deionized water into the reaction vessel, heat up to 72°C while stirring, add 15% emulsifier and stir for 13 minutes, then heat up to 83°C, add 1.5% initiator, and continue stirring 3min;

[0059] a2) After the temperature stabilizes, start to add 6% of the mixed monomer dropwise, stop the dropwise addition after 18 minutes, continue to add 24% of the mixed monomer dropwise after the solution has obvious blue light and the temperature is stable, and complete the dropwise addition within 2 hours;

[0060] a3) keep warm at 83°C for 3h, then raise the temperature to 90°C, add 0.5% initiator, keep warm for 1.5h, and obtain a self-crosslinked styrene-acrylic emulsion with a particle size...

Embodiment 2

[0071] A kind of preparation method of high hardness AR coating solution of the present embodiment, comprises the following steps (the following components are all by mass percentage):

[0072] Synthesis of step a, fine particle size self-crosslinking styrene-acrylic emulsion:

[0073] a1) Add 65% deionized water into the reaction vessel, heat up to 68°C under stirring, add 12% emulsifier and stir for 12min, then heat up to 79°C, add 0.8% initiator, and continue stirring 4min;

[0074] a2) After the temperature is stabilized, start to add 4.9% of the mixed monomer dropwise, and stop the dropwise addition after 15 minutes. After the solution has obvious blue light and the temperature is stable, continue to add 17% of the mixed monomer dropwise, and the dropwise addition is completed within 2 hours;

[0075] a3) keep warm at 79°C for 4h, then raise the temperature to 92°C, add 0.3% initiator, keep warm for 2h, and obtain a self-crosslinked styrene-acrylic emulsion with a partic...

Embodiment 3

[0089] A kind of preparation method of high hardness AR coating solution of the present embodiment, comprises the following steps (the following components are all by mass percentage):

[0090] Synthesis of step a, fine particle size self-crosslinking styrene-acrylic emulsion:

[0091] a1) Add 84% deionized water into the reaction vessel, heat up to 75°C under stirring, add 5% emulsifier and stir for 10 minutes, then heat up to 85°C, add 0.5% initiator, and continue stirring 2min;

[0092] a2) After the temperature stabilizes, start to add 3% of the mixed monomer dropwise, stop the dropwise addition after 20 minutes, continue to add 7% of the mixed monomer after the solution has obvious blue light and the temperature is stable, and complete the dropwise addition within 3 hours;

[0093] a3) keep warm at 85°C for 2h, then raise the temperature to 95°C, add 0.5% initiator, keep warm for 1h, and obtain a self-crosslinked styrene-acrylic emulsion with a fine particle size of 90nm...

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Abstract

The invention relates to the technical field of anti-reflection coating liquid, and particularly relates to high-hardness anti-reflection (AR) coating liquid and a preparation method thereof. The high-hardness AR coating liquid is mainly composed of a fine-grain self-crosslinking styrene-acrylic emulsion, boron-aluminum-zirconium hybrid silica sol, a coupling agent, a cross-linking agent and a wetfilm volatilization control agent. According to the invention, on one hand, through optimization and regulation of the formula and process of a template agent, the particle size of the synthesized fine-grain self-crosslinking styrene-acrylic emulsion reaches 50-90 nm, and hardness of the AR coating is greatly improved; on the other hand, metal oxides of boron, aluminum and zirconium and other cross-linking auxiliaries are introduced, so that a three-dimensional network structure of a film layer is enhanced, hardness of the film layer is further improved, and meanwhile, characteristics of highpermeability and high weather resistance are achieved.

Description

technical field [0001] The invention relates to the technical field of anti-reflection and anti-reflection coating solutions, in particular to a high-hardness AR coating solution and a preparation method thereof. Background technique [0002] The sol-gel method is a common method for preparing ultra-clear photovoltaic glass anti-reflection and anti-reflection coating (referred to as AR coating) solution. The AR coating solution prepared by the sol-gel method is mainly composed of silica sol, template agent, solvent, etc. Silicate is used as a raw material, and under the catalysis of acid or alkali, reactions such as hydrolysis and polycondensation occur to form a three-dimensional network structure or a linear network structure of nano-silica sol, and then under certain conditions, the nano-silica sol The sol and the template agent were compounded to prepare the AR coating solution, and then the AR coating solution was used to form a film on the ultra-clear photovoltaic glas...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D7/61C08F212/08C08F220/06C08F220/18
Inventor 陈刚周志文王科刘明刚陈海峰贺志奇胡小娅陈诚唐高山纪朋远
Owner DONGGUAN CSG SOLAR GLASS
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