Silicon magnesium aluminum sol and doped core-shell silica microsphere coating solution and its preparation and application

A technology of hydroxy-silicon-magnesium-aluminum sol and magnesium-aluminum sol, which is applied in coating and other directions, can solve problems such as unsatisfactory performance, and achieve the effects of obvious power generation gain, high light transmittance, and reliable combination

Active Publication Date: 2017-08-29
CSG HOLDING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the prior art, many properties of the coating formed by coating the anti-reflection and anti-reflection coating solution on the glass are still not ideal.

Method used

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  • Silicon magnesium aluminum sol and doped core-shell silica microsphere coating solution and its preparation and application
  • Silicon magnesium aluminum sol and doped core-shell silica microsphere coating solution and its preparation and application
  • Silicon magnesium aluminum sol and doped core-shell silica microsphere coating solution and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] (1) Preparation of nano-core-shell SiO 2 microsphere sol

[0062] According to the literature "Monodisperse hollow SiO 2 Nano-core-shell core-shell SiO 2 Microsphere sol (Zou Hua, Wu Shishan, Shen Jian. Monodisperse hollow SiO 2 Synthesis and characterization of nano-microspheres. [J]. Acta Chem. 2009.67 (3) 266-269), the specific preparation process is as follows:

[0063] (1) Raw materials: Styrene (abbreviated as S), polyvinylpyrrolidone (abbreviated as PVP, K30) and ethyl orthosilicate (TEOS) were purchased from China Pharmaceutical Group Shanghai Chemical Reagent Company, and S was removed by 10wt% NaOH aqueous solution before polymerization Inhibitor, then carry out vacuum distillation (usually at -50KPa ~ -100KPa, in all embodiments of the present invention, carry out distillation at -80KPa), absolute ethanol and ammonia solution (25wt%) are produced in Nanjing Chemical Reagent Co., Ltd. Company, potassium persulfate (KPS) is produced by Tianjin Chemical Reag...

Embodiment 2

[0098] (1) Preparation of nano-core-shell SiO 2 microsphere sol

[0099] Prepare nano-core-shell SiO according to the same method as in Example 1 2 microsphere sol.

[0100] (2) Preparation method rich in hydroxyl silica sol

[0101] (1) Add 100ml of solvent isopropanol into the three-necked flask, and under the condition of stirring at 15°C, slowly add additional deionized water (here is additionally added deionized water) and catalyst nitric acid into the three-necked flask, and continue to stir 30min to obtain liquid A;

[0102] (2) Under the condition of stirring at 15°C, add aluminum salt aluminum chloride, magnesium salt magnesium acetate and tetraethoxysilane as an alkoxysilane into liquid A respectively, raise the temperature to 60°C and continue stirring for 2 hours, then stop stirring, Aged at 40° C. for 4 days, and cooled to obtain a hydroxyl-rich silica sol with a solid content of 10% by weight.

[0103] In the above process of preparing hydroxyl-rich silica s...

Embodiment 3

[0123] (1) Preparation of nano-core-shell SiO2 microsphere sol

[0124] Prepare nano-core-shell SiO according to the same method as in Example 1 2 microsphere sol.

[0125] (2) Preparation method rich in hydroxyl silica sol

[0126] (1) Add 100ml of solvent methanol into the three-necked flask, under the condition of stirring at 30°C, slowly add the uniformly mixed deionized water and catalyst nitric acid into the three-necked flask, and continue stirring for 30min to obtain liquid A;

[0127] (2) Under the condition of stirring at 30°C, add aluminum salt aluminum formate, magnesium salt magnesium acetylacetonate and tetraethoxysilane as alkoxysilane into liquid A respectively, raise the temperature to 60°C and continue stirring for 3 hours, then stop stirring, Aged at 60° C. for 4 days, and cooled to obtain a hydroxyl-rich silica sol with a solid content of 12% by weight.

[0128] The volume (or mass) ratio of solvent, deionized water, catalyst, magnesium salt, aluminum sa...

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Abstract

The invention relates to a composite coating solution prepared from simaldrate sol doped with core-shell silicon dioxide pellets, preparation and application of the composite coating solution. Simaldrate sol is prepared through reaction of raw materials containing deionized water, an acid catalyst, a solvent, aluminum salt, magnesium salt and alkoxysilane, wherein for 1 ml of alkoxysilane, totally 0.05-0.2 g of magnesium salt and aluminum salt is required, and the mass ratio of magnesium salt to aluminum salt is 1:1. According to the invention, the composite coating solution is prepared by compounding the raw materials contaning hydroxyl simaldrate sol, nano core-shell SiO2 pellet sol, a coupling agent, a cross-linking agent, and the solvent; when the composite coating solution is used on photovoltaic glass, a nano hollow particle layer is formed in the coating, a dense layer is formed on the surface, the light transmittance of the anti-reflection coating is high, and the power gain for photovoltaic modules is remarkable; in addition, the composite coating solution can be firmly bonded with the glass, the coating is higher in hardness and good in weather resistance, and an industrial application value is achieved.

Description

technical field [0001] The invention relates to the technical field of nano core-shell materials, in particular to a glass antireflection coating solution and its preparation and application. Background technique [0002] Appropriate anti-reflection coatings on the surface of optical components can reduce the reflection loss on the surface of optical components. For example, anti-reflective glass coated with coating solution on the surface of glass can be used in many fields. For example, the protective glass panel used for solar cells can improve the power generation efficiency of solar cells, and the protective glass used for displays can improve the display effect and energy saving. [0003] The sol-gel method is the most commonly used method to prepare ultra-clear photovoltaic glass coating solution. The antireflection and antireflection film prepared by the sol-gel method is made of silicate as a raw material. Under the catalysis of acid or alkali, hydrolysis, polycon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C03C17/00C03C17/23
Inventor 陈刚周志文宋辉王科刘明刚纪朋远唐高山
Owner CSG HOLDING
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