Multilayer nano hollow array antireflection film and preparation method thereof

An anti-reflection film and nano-technology, applied in coatings and other directions, can solve the problems of reduced transmittance, different apertures, and unstable transmittance, etc., and achieve the effects of strong adhesion, high hardness, and improved solar energy utilization efficiency

Active Publication Date: 2017-06-27
GRIMAT ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the current process of preparing closed-cell anti-reflection film, due to the thickness of the film layer, the prepared anti-reflection film often causes the problem of different pore diameters caused by hole accumulation,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] First, wash the flake or tubular glass, put it into absolute ethanol and acetone for ultrasonic treatment for 30 minutes each, and dry the cleaned glass sample;

[0032] 0.1 mol of ethyl orthosilicate, 0.8 mol of deionized water, 0.005 mol of hydrochloric acid, and 2.4 mol of anhydrous ethanol were mixed, and then stirred at room temperature for 12 hours to obtain Sol A;

[0033] 0.4mol of tetrabutyl titanate, 0.6mol of deionized water, 0.08mol of absolute ethanol, and 200mol of diethanolamine were mixed, stirred continuously for 24 hours, and aged for 2 hours to obtain Sol B;

[0034] After adding 2 mol of polystyrene with a particle size of 5 nm to the sol A, the mixture was stirred for 2 hours to obtain a suspension C;

[0035] After adding 2 mol of polystyrene with a particle size of 5 nm to the sol B, the mixture was stirred for 2 hours to obtain the suspension D;

[0036] The cleaned glass was pulled in suspension C at a pulling rate of 8 cm / m...

Example Embodiment

[0041] Example 2

[0042] First, wash the flake or tubular glass, put it into absolute ethanol and acetone for ultrasonic treatment for 30 minutes each, and dry the cleaned glass sample;

[0043] After mixing 0.1mol ethyl orthosilicate, 0.2mol deionized water, 0.005mol hydrochloric acid, and 2.4mol absolute ethanol, and stirring at room temperature for 24 hours, sol A was obtained;

[0044] 0.4mol of tetrabutyl titanate, 0.6mol of deionized water, 0.10mol of absolute ethanol, and 250mol of diethanolamine were mixed, stirred continuously for 24 hours, and aged for 2 hours to obtain Sol B;

[0045] After adding 0.5 mol of polystyrene with a particle size of 5 nm to the sol A, it was stirred for 2 hours to obtain a suspension C;

[0046]After adding 2 mol of polystyrene with a particle size of 5 nm to the sol B, the mixture was stirred for 2 hours to obtain the suspension D;

[0047] The cleaned glass was pulled in suspension C at a pulling rate of 9 cm / min. After the pulling w...

Example Embodiment

[0052] Example 3

[0053] First, wash the flake or tubular glass, put it into absolute ethanol and acetone for ultrasonic treatment for 30 minutes each, and dry the cleaned glass sample;

[0054] After mixing 0.1mol ethyl orthosilicate, 0.2mol deionized water, 0.005mol hydrochloric acid, and 2.4mol absolute ethanol, and stirring at room temperature for 24 hours, sol A was obtained;

[0055] 0.4mol of tetrabutyl titanate, 0.6mol of deionized water, 0.08mol of absolute ethanol, and 200mol of diethanolamine were mixed, stirred continuously for 24 hours, and aged for 2 hours to obtain Sol B;

[0056] After adding 0.5 mol of polystyrene with a particle size of 5 nm to the sol A, it was stirred for 2 hours to obtain a suspension C;

[0057] After adding 2 mol of polystyrene with a particle size of 5 nm to the sol B, the mixture was stirred for 2 hours to obtain the suspension D;

[0058] The cleaned glass was pulled in suspension C at a pulling rate of 8 cm / min. After the pulling ...

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Abstract

The invention discloses a multilayer nano hollow array antireflection film and a preparation method thereof. The inside of the antireflection film is a multilayer film which has a closed pore structure and is formed by alternate superposition of regularly and compactly arranged nano hollow sphere single-layer silicon dioxide and titanium dioxide, wherein the number of layers is 2-30, and the outermost layer is a compactly closed silicon dioxide film layer. The preparation method comprises the following steps: preparing a sol A from ethyl orthosilicate, deionized water, an acid catalyst and anhydrous ethanol used as raw materials, and adding polystyrene particles to obtain a suspension C; preparing a sol B from tetrabutyl titanate, deionized water, anhydrous ethanol and diethanolamine used as raw materials, and adding polystyrene particles to obtain a suspension D; performing dip coating on cleaned glass in the suspension C, then annealing, further performing dip coating on the coated glass in the suspension D, then annealing, and repeating the operation for 1-25 times; and finally, performing dip coating in the sol A, and then annealing to obtain the antireflection film of which the surface is closed and the inside is a nano hollow array structure.

Description

technical field [0001] The invention relates to a multi-layer nanometer hollow array anti-reflection film and a preparation method thereof, belonging to the technical field of sol-gel coating and anti-reflection film. Background technique [0002] The sol-gel coating method uses a variety of liquid materials to be fully reacted and plated on the substrate. Its advantage is that the composition of various materials is uniform after mixing and reacting, which can ensure the uniformity of the film. It can be adjusted by adjusting the ratio of raw materials. change the properties of the film. The sol-gel coating method can also adjust the thickness and refractive index of the film, thereby changing the transmittance of the anti-reflection film. Currently, the anti-reflection film prepared by the sol-gel method on the glass substrate can increase the transmittance by 2-7%. , At the same time, using the sol-gel method to pull the anti-reflection film film has the advantages of lo...

Claims

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Application Information

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IPC IPC(8): C03C17/34
CPCC03C17/3417C03C2217/70
Inventor 杨海龄郝雷张子楠王吉宁米菁于庆河杜淼赵旭山王笑静李世杰余航刘晓鹏蒋利军
Owner GRIMAT ENG INST CO LTD
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