Antireflection coating, and preparation method and application thereof

An anti-reflection and anti-reflection glass technology, applied in the field of coatings, can solve the problems of increased manufacturing cost, limited life, easy failure, etc., and achieve the effects of high weather resistance, high cost performance and simple process

Active Publication Date: 2020-01-10
宁波甬安光科新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are three problems in this approach. First, low surface energy materials are usually fluorine-containing materials, which have potential risks to the human body and the environment; second, these low surface energy materials have limited life and are prone to failure; third, such One or more processes will be added, which will virtually increase the manufacturing cost

Method used

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  • Antireflection coating, and preparation method and application thereof
  • Antireflection coating, and preparation method and application thereof
  • Antireflection coating, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] This embodiment provides a weather-resistant closed-cell antireflection coating, which is mainly composed of a silicon source, a hyperbranched resin, an additive, a catalyst, and a solvent. The silicon source is an alkoxysilane, the catalyst is an acid, and the solvent is an alcohol. The proportioning relationship of each component is calculated in parts by weight: 3%-5% of silicon source, 1-10% of hyperbranched resin, and 85%-96% of auxiliary agent, catalyst and solvent. The anti-reflection coating is made by one of the following methods:

[0046] (1) Dissolve the hyperbranched resin in a solvent, add a silicon source and a catalyst to the solvent in which the hyperbranched resin is dissolved, and fully react for 0.5-20 hours to obtain a sol containing composite nanoparticles with a core-shell structure, and then add additives , to obtain the anti-reflection coating; or

[0047] (2) Mix the silicon source, catalyst and solvent for 0.5-24 hours to prepare silica colloi...

Embodiment 2

[0052] This embodiment provides a specific preparation method of a weather-resistant closed-cell anti-reflection coating. The preparation method includes the following steps:

[0053] Step 1: At room temperature, add the diluted 0.1M catalyst hydrochloric acid into the solvent ethanol for stirring, add tetraethoxysilane (TEOS) during the stirring process, and stir for 24 hours to obtain a network silica colloid;

[0054] Step 2: Take six parts of the same amount of colloidal silica prepared in step 1, and add 1%, 2% and 3% of the colloidal silica by weight in the process of stirring the six parts of colloidal silica , 4%, 5%, 10% acrylate oligomers, stirred and reacted for 12h, to obtain weather-resistant type closed-cell anti-reflection coating of the present invention;

[0055] Step 3: Add 0.1% of the leveling agent by weight of silica colloid to the six parts of weather-resistant closed-cell anti-reflection coatings prepared in step 2 to obtain six parts of weather-resistan...

Embodiment 3

[0057] This embodiment provides another specific preparation method for weather-resistant closed-cell anti-reflection coatings. This preparation method includes the following steps:

[0058] Step 1: At room temperature, add 2%, 2.5%, 3%, 3.5%, 4%, 6% hyperbranched resin acrylate oligomers into ethanol solvent and fully dissolve;

[0059] Step 2: Add tetraethoxysilane (TEOS) and 0.1M hydrochloric acid catalyst to the fully dissolved hyperbranched resin ethanol solution obtained in step 1, and react for 24 hours to obtain the weather-resistant closed-cell anti-reflection coating of the present invention;

[0060] Step 3: Add 0.1% leveling aid by weight of silica colloid to the weather-resistant closed-cell anti-reflection coating in step 2. The leveling aid is one of acrylic, silicone, and fluorine-containing additives or more, to obtain a weather-resistant closed-cell anti-reflection coating with excellent spreading properties.

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Abstract

The invention relates to a weather-resistant closed-pore antireflection coating, and a preparation method and an application thereof. The coating contains composite nanoparticles having a core-shell structure and formed by coating spherical hyperbranched resin particles with silicon oxide having a network-shaped structure, the coating forms , a coating layer on a base material, the coating layer is thermally cured, then the core formed by the hyperbranched resin in the composite nanoparticles is burnt out, the remaining hollow silicon oxide shell is hollow nanoparticles and a pore structure (agap) between the hollow nanoparticles, and the gap between the hollow nanoparticles on the surface of the coating layer is filled with silicon oxide to form a closed pore structure, so the weather resistance of the coating layer is improved while improving the transmittance of the coating. The coating has the excellent antireflection function, and also has the remarkable advantages of simple process, high weather resistance, high cost performance and the like.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an anti-reflection coating and its preparation method and application. Background technique [0002] Anti-reflection coatings have always been very important in traditional optical industries such as optical lenses and laser devices. In recent years, photovoltaic equipment, high-end showcases, display equipment, automotive glass and other industries have also had a wide demand for anti-reflection coatings. Using the low refractive properties of anti-reflection coatings (the coating has a certain porosity and pore structure after forming a coating, It can directly reflect on the refractive performance) to reduce the reflectivity of the surface of these devices and improve the light transmittance. [0003] At present, more and more anti-reflection coating equipment are used in outdoor environments, such as photovoltaic glass, greenhouse glass, automotive glass, etc. ...

Claims

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Application Information

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IPC IPC(8): C09D1/00B01J13/02C03C17/30C03C17/32B82Y40/00B82Y30/00
CPCB01J13/02B82Y30/00B82Y40/00C03C17/009C03C2217/445C03C2217/732C03C2218/32C09D1/00
Inventor 韩超胡文杰陶玉溪
Owner 宁波甬安光科新材料科技有限公司
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