Transparent silicon dioxide antireflection film coating process

A technology of silicon dioxide and anti-reflection coating, applied in the direction of coating, can solve problems such as poor coating effect and poor optical performance, achieve good optical and mechanical properties, improve connection strength, and increase the effect of concentration

Active Publication Date: 2021-10-12
浙江鼎梓塑胶科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a transparent silicon dioxide anti-reflection film coating process in order to overcome the defects that the silicon dioxide anti-reflection film in the prior art will produce poor coating effect and poor optical performance during the coating process.

Method used

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  • Transparent silicon dioxide antireflection film coating process
  • Transparent silicon dioxide antireflection film coating process
  • Transparent silicon dioxide antireflection film coating process

Examples

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preparation example Construction

[0037] The preparation method of hyperbranched organosilicon prepolymer among the present invention is as follows:

[0038] (S.1) Under the protection of nitrogen, take 0.1mol of boric acid and 0.3mol of triethylamine dissolved in 100ml of dichloromethane and add them to the reaction kettle, and add 0.3mol of dimethylchlorosilane dropwise to it, and stir for 2 hours at -10°C Finally, after washing the reaction solution with water, the solvent was rotated to obtain compound A;

[0039] (S.2) Under nitrogen protection, add 0.1mol of compound A, 0.3mol of 2-butene-1,4-diol, 100ml of toluene and a catalytic amount of Castel catalyst into the reaction kettle and stir for 3h at 85°C , add 0.1g of activated carbon and stir for 10 minutes, filter and spin evaporate the solvent to obtain compound B;

[0040] (S.3) Under the protection of nitrogen, dissolve 0.1 mol of compound B in an organic solvent, and dropwise add 0.1 mol of chlorosulfonic acid to it, stir and react at 0°C for 2 ho...

Embodiment 1

[0044] A transparent silicon dioxide anti-reflection film coating process, comprising the following steps:

[0045] (S.1) Immerse the glass in an aqueous solution of sodium hydroxide with a pH value of 11.5 for 600 seconds, and corrode the glass surface, thereby forming micro-nano holes with a diameter of 50-500 nm and a depth of 50-100 nm on the glass surface;

[0046] (S.2) Dissolve the hyperbranched silicone prepolymer in acidic ethanol aqueous solution with a pH value of 4.5, wherein the mass of the hyperbranched silicone prepolymer, ethanol and water is 10:45:20, and prepare into a mixed solution, stirred and reacted at 50°C for 1 hour, and aged for 18 hours to obtain a transparent silica sol;

[0047] (S.3) Immerse the corroded glass in step (1) in transparent silica sol, form a layer of silicon-containing film on its surface by pulling method, let it stand for a certain period of time, and the pulling speed is 100mm / min. Stand still for 60s after pulling;

[0048] (S....

Embodiment 2

[0051] A transparent silicon dioxide anti-reflection film coating process, comprising the following steps:

[0052] (S.1) Immerse the glass in an aqueous solution of sodium hydroxide with a pH value of 13 for 60 seconds to corrode the glass surface, thereby forming micro-nano holes with a diameter of 50-500 nm and a depth of 50-100 nm on the glass surface;

[0053] (S.2) Dissolve the hyperbranched silicone prepolymer in an aqueous acidic ethanol solution with a pH value of 6, wherein the mass between the hyperbranched silicone prepolymer, ethanol and water is 30:60:40, and prepare into a mixed solution, stirred and reacted at 70°C for 5 hours, and aged for 48 hours to obtain a transparent silica sol;

[0054] (S.3) Immerse the corroded glass in step (1) in transparent silica sol, form a layer of silicon-containing film on its surface by pulling method, let it stand for a certain period of time, the pulling speed is 250mm / min, static The setting time is 10s;

[0055] (S.4) He...

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Abstract

The invention relates to the field of optical modification, in particular to a transparent silicon dioxide antireflection film coating process which comprises the following steps: (S.1) corroding the surface of glass through a solution method to form micro-nano holes; (S.2) preparing a hyperbranched organic silicon prepolymer, and preparing the hyperbranched organic silicon prepolymer into transparent silica sol through a sol-gel method; (S.3) soaking the corroded glass in the step (1) in transparent silica sol, and forming a layer of silicon-containing film on the surface of the glass through a pulling method; and (S.4) carrying out heat treatment on the glass attached with the silicon-containing film to obtain a silicon dioxide antireflection film; wherein the center of the hyperbranched organic silicon prepolymer in the step (S.2) is of a polyborosiloxane structure, and the end part of an external branch chain of the hyperbranched organic silicon prepolymer contains an alkoxy silane structure and a sulfonic group structure. The coating process disclosed by the invention has the advantages of good coating effect, good coating optics and good wear resistance.

Description

technical field [0001] The invention relates to the field of optical modification, in particular to a transparent silicon dioxide antireflection film coating process. Background technique [0002] Anti-reflection coating, also known as anti-reflection coating, is to coat optical film on the surface of optical components to reduce the reflection of the surface of optical components and increase the transmittance of light, thereby improving the performance of optical components in the working wavelength or band, so in It is very necessary to add an anti-reflection coating on the optical components. [0003] At present, the coating material used for anti-reflection is mainly silicon dioxide, and the transmittance of light can be effectively improved by coating a layer of silicon dioxide on the surface of the optical element. The simplest preparation method is the sol-gel method, which has the advantages of simple operation, low cost, suitable for irregular surfaces and large-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/25C03C15/00C08G83/00G02B1/11
CPCC03C17/25C03C17/001C03C15/00C08G83/005G02B1/11C03C2218/111C03C2218/113C03C2217/213C03C2217/70
Inventor 丁庆峰
Owner 浙江鼎梓塑胶科技股份有限公司
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