Method for preparing low-reflection glass

A low-reflection and glass technology, which is applied in the field of chemical composition and preparation of low-reflection glass, can solve the problems of inability to reduce light reflectivity, complicated process methods, and increased processing costs, and achieve good technical support, cost reduction, and technological process easy effect

Inactive Publication Date: 2009-09-16
上海多林玻璃技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although the aforementioned ZL01126227.3 patent technology mixes ammonium bifluoride and hydrofluoric acid solution to etch the surface of the glass, it can effectively reduce the light transmittance of the glass, but it cannot reduce the reflectance of light.
Although the ZL200480003081.5 patent mentioned later can achieve the purpose of reducing the reflectivity of flat glass, the process method is relatively complicated and the processing cost will also increase.

Method used

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  • Method for preparing low-reflection glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] 1. Preparation of materials

[0018] 1. Preparation of low reflection frosting powder (1) (by weight percentage)

[0019] Ammonium bifluoride 50%

[0020] Potassium bifluoride 10%

[0021] Potassium fluoroborate 10%

[0022] Calcium Fluoride 10%

[0023] Barite Powder 8%

[0024] Kaolin 5%

[0025] Barium Sulfate 5%

[0026] Sodium polyacrylate 0.5%

[0027] Hydroxyethyl Cellulose 1.5%

[0028] The inorganic fluorides used in the above-mentioned frosting powder: ammonium hydrogen fluoride, potassium hydrogen fluoride, and potassium fluoroborate can also be used in other inorganic fluorides that can be dissolved in water and produce fluoride ions: ammonium fluoride, sodium hydrogen fluoride, and sodium fluoroborate One or a mixture of several materials can be used instead; similarly, besides calcium fluoride, barite powder, kaolin and barium sulfate, sodium fluorosilicate, calcium fluorosilicate, fluorine One or more mixtures of magnesium silicate, bentonite, an...

example 1

[0060] Prepare 30kg of frosting powder according to the weight ratio of the above compounds: weigh each component and place it in a PVC or plastic container, stir at a constant speed for 10 minutes, and control the temperature in the container not to exceed 30°C. Take out 5kg of evenly stirred frosting powder and place it in a plastic container with a cover, and add 2.5kg of 31% industrial hydrochloric acid (the ratio of powder to hydrochloric acid is 1:0.50). When the hydrochloric acid was just added, the temperature of the mixed solution dropped to 2-3°C, stirred at 30 rpm for 20 hours, the temperature of the mixed solution returned to room temperature, and the aging reaction of the frosting solution was completed. Take a 300×300mm glass sheet with a thickness of 5mm, protect one side with PVC film, clean the other side with glass cleaning solution, rinse with water, and immerse in the above-mentioned mature frosting solution for 20 seconds. Take out the water and wash it, d...

example 2

[0062] The low-reflection glass frosting powder prepared by the chemical composition of Example 1. Take 5.0kg and place it in a plastic container with a cover, add 3.5kg of 36% analytically pure hydrochloric acid (the ratio of powder to hydrochloric acid is 1:0.70), stir for 5 minutes, cover the container, and let the mixed frosting solution react After 24 hours, a uniformly mixed low-reflection glass frosting solution was obtained. Take a 300×300mm flat glass with a thickness of 5mm, protect one side with PVC film, scrub the other side with glass cleaning solution, rinse with water, drip dry, and immerse in low-reflection glass frosting solution for 40 seconds. Take out the reacted glass piece and wash it with water, after dripping dry, immerse it in the glass low-reflection liquid to react for 10 minutes, take it out and wash it with water for 1 minute. After dripping and drying, remove the PVC protective film, wash with water, and dry to obtain a low-reflection glass with ...

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Abstract

The invention relates to a method for preparing low-reflection glass, which is characterized in that a cleaned glass sheet covered with a PVC film on one surface is soaked into frosting powder consisting of inorganic fluorine compound, assistant and surfactant and soaked into low-reflection glass frosting liquid consisting of the frosting powder and hydrochloric acid according to a weight ratio of between 1 to 0.2 and 1 to 1 for 5 to 300 seconds; after reaction, a low-reflection glass basic sample of which light transmittance is 50 to 60 percent is formed; and then, the low-reflection glass basic sample is put into a glass low-reflection transparent liquid to react for 2 to 20 minutes, the PVC film on one surface of the glass sheet is removed, and then the low-reflection glass of which reflectivity is less than 2 percent is obtained by cleaning and airing. The whole process is quite simple and practical.

Description

technical field [0001] The invention provides a method for preparing low-reflection glass, in particular to the chemical composition and preparation method for producing low-reflection glass. Background technique [0002] Low-reflection glass, also known as anti-reflection glass or anti-glare glass, is a special glass that reduces light reflection and allows light to pass through easily. It has been widely used in various fields such as electronics industry, high-end mirror frame mounting, and instrument industry. The production of low-reflective glass currently uses surface materials with low reflective properties to spray on the surface of the glass, so that it has a low "light" reflectance. This method requires a large investment in equipment, and the formed low-reflection sprayed film layer is easy to cause peeling off in a high-humidity environment. [0003] Chemical reaction on the glass surface can change the silicon-oxygen structure on the surface and reduce the lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00
Inventor 李建辉
Owner 上海多林玻璃技术有限公司
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