Composite anti-fog lens and preparation method thereof

A lens and anti-fog technology, applied in coatings, instruments, optics, etc., can solve the problems of poor durability and friction resistance, interference with the vision of the wearer of glasses, fogging, etc., to achieve good durability, not easy to be thermally decomposed, and effective quick effect

Inactive Publication Date: 2019-06-07
合肥酷飞新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon will seriously interfere with the line of sight of the wearer of the glasses, and bring a lot of inconvenience to life and work.
[0004] In order to avoid fogging on the surface of the lens, the commonly used method in the market is to spray anti-fogging agent on the lens. However, the anti-fogging agent sprayed on the lens has poor durability and friction resistance, and its anti-fogging effect is usually The effect can only last for 2-3 days, or even only a few hours

Method used

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  • Composite anti-fog lens and preparation method thereof
  • Composite anti-fog lens and preparation method thereof
  • Composite anti-fog lens and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] refer to figure 1 , a composite anti-fog lens, comprising a base material 1, the base material 1 is a glass lens or a resin lens, the outer surface of the base material 1 is sequentially compounded with a base layer 2 and an upper anti-fog layer 3, the base layer 2 is prepared from aminosilane and organosilylamine by dipping-pulling technology; the upper anti-fog layer 3 is mainly prepared from vinyl alcohol polymer, acrylic polymer and organosilane by dipping-pulling technology. The organosilane is preferably aminosilane; the present invention solidifies a layer of self-assembled organosilane and organosilyl amine composite macromolecule on the upper and lower surfaces of the substrate, which can improve the timeliness and wear resistance of the anti-fog film. The uniformity of the film prepared by dipping method is better.

[0033] The structural formula of described aminosilane is: (R 1 O) 3 -Si-R 2 -NH 2 , where R 1 for C 1-2 the alkyl group, R 2 for C 1-4 ...

Embodiment 2

[0036] A preparation method of a composite anti-fog lens, comprising the steps of:

[0037](1) Preparation of base layer curing primer: 3-aminopropyltriethoxysilane and bis(3-trimethoxysilylpropyl)amine are mixed according to a volume ratio of 10:1 to obtain a mixed solution, and then The mixed solution is dropped into ethanol and stirred to obtain a clear and transparent base solution, wherein the volume fraction of the mixed solution in ethanol is 0.5%;

[0038] (2) Preparation of the upper anti-fog liquid: Pour polyvinyl alcohol into deionized water and stir, then add polyacrylic acid, and continue stirring to obtain a mixed solution of polyvinyl alcohol and polyacrylic acid; mix 3-aminopropyltriethoxysilane Drop into the mixed solution of polyvinyl alcohol and polyacrylic acid, stir to obtain a transparent upper layer anti-fog liquid; wherein the content of polyvinyl alcohol in the obtained upper layer anti-fog liquid is 1 mg / ml, and the content of polyacrylic acid is 1 mg...

Embodiment 3

[0045] A preparation method of a composite anti-fog lens, comprising the steps of:

[0046] (1) Preparation of base layer curing primer: 3-aminopropyltriethoxysilane and bis(3-trimethoxysilylpropyl)amine are mixed according to the volume ratio of 2:1 to obtain a mixed solution, and then The mixed solution is dropped into ethanol and stirred to obtain a clear and transparent base solution, wherein the volume fraction of the mixed solution in ethanol is 2%;

[0047] (2) Preparation of the upper anti-fog liquid: Pour polyvinyl alcohol into deionized water and stir, then add polyacrylic acid, and continue stirring to obtain a mixed solution of polyvinyl alcohol and polyacrylic acid; mix 3-aminopropyltriethoxysilane Drop into the mixed solution of polyvinyl alcohol and polyacrylic acid, stir to obtain a transparent upper layer anti-fog liquid; wherein the content of polyvinyl alcohol in the obtained upper layer anti-fog liquid is 10 mg / ml, and the content of polyacrylic acid is 5 m...

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Abstract

The invention discloses a composite anti-fog lens comprising a base material. A substrate and an upper anti-fog layer are formed successively on the outer surface of the substrate in a composite manner. The substrate layer is prepared by using aminosilane and organosilicone alkylamine. The upper anti-fog layer is prepared by mainly using a vinyl alcohol polymer, an acrylic polymer and organosilane. In addition, the invention also provides a method for preparing the composite anti-fog lens. According to the prepared composite anti-fog lens, the firm anti-fog coating is formed on the surface ofthe base material by the anti-fog film; with the organosilicone, the timeliness and wear resistance of the anti-fog film are improved substantially; on the basis of the base material surface treatmentby plasma activation, the bonding between the base material and the film layer is strengthened; the film prepared by using the dip coating method has high uniformity; and the composite anti-fog lenshas advantages of good anti-fog effect, quick effect, high durability, uniform film formation, high transparency, high thermal stability and good effect of thermal decomposition prevention.

Description

technical field [0001] The invention relates to the technical field of lens preparation, in particular to a composite anti-fog lens and a preparation method thereof. Background technique [0002] Fogging on the surface of materials is a natural phenomenon. The principle of formation is that the saturated vapor pressure of water is lower than the partial pressure of water vapor in the air due to the decrease of temperature, so that the water vapor condenses into small water droplets. Therefore, when there is a significant temperature difference between the material surface and the external environment, water mist or even water droplets will appear on the surface. Fog on the surface of the material will affect the transparency of the material, especially for users who wear glasses. [0003] In the cold winter or every morning, when wearing glasses, you will encounter the problem of fogging glasses: fogging will occur on the glasses from outdoor to indoor, fogging will occur w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/04G02B1/18G02B1/00C09D129/04C09D133/02C09D7/63
Inventor 董晓磊刘红梅王海千
Owner 合肥酷飞新材料科技有限公司
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