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Antifog surface treatment agent for resin optical glasses

A surface treatment agent and optical lens technology, applied in the field of material chemistry, can solve the problems of poor adhesion of anti-fogging agents, affecting the light transmittance of transparent substrates, reducing the light transmittance of transparent substrates, etc., to shorten the curing time , Suppression of stickiness on the surface and excellent friction resistance

Inactive Publication Date: 2015-04-08
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in these existing anti-fog materials, the performance we need is not enough.
That is to say, these anti-fogging materials may reduce the light transmittance of the transparent substrate; or scratches will appear after several times of use without friction resistance, which also affects the light transmittance of the transparent substrate; or the adhesion of the anti-fogging agent is not good. Too good, it is easy to swell and fall off when it meets water, so the service life of the anti-fogging agent is too short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] For the preparation of silica sol, add 1g of tetraethyl orthosilicate and 14g of isopropanol into a beaker, stir well, then add 7g of deionized water, adjust the pH value of the mixed solution to 3.5 with dilute hydrochloric acid, and stir at 65°C for 6 hours to obtain Silica sol.

[0032] Mix the silica sol obtained above with 1.5g polysorbate, 4g hydroxyethyl cellulose, 2g sodium alginate, 2g hydroxyethyl acrylate and 2.5g magnesium sulfate for 15 hours, adjust the pH value with dilute sodium hydroxide solution If it is neutral, an anti-fogging surface treatment agent can be obtained.

Embodiment approach 2

[0034] For the preparation of silica sol, add 1g of butyl orthosilicate and 20g of ethanol into a beaker, stir evenly, then add 10g of deionized water, adjust the pH value of the mixed solution to 3.5 with dilute hydrochloric acid, and stir at 55°C for 5 hours to obtain silica sol .

[0035] The silica sol obtained above was fully stirred and mixed with 2g sorbitan fatty acid ester, 6g hydroxyethyl cellulose, 2g sodium alginate, 2g hydroxymethyl acrylate and 3g magnesium carbonate for 24 hours, and adjusted with dilute sodium hydroxide solution When the pH value is neutral, the anti-fogging surface treatment agent can be obtained.

Embodiment approach 3

[0037] For the preparation of silica sol, add 1g of methyl orthosilicate and 15g of ethylene glycol into a beaker, stir evenly, then add 10g of deionized water, adjust the pH value of the mixed solution to 3.5 with dilute hydrochloric acid, and stir at 70°C for 8 hours to obtain Silica sol.

[0038] Mix the silica sol obtained above with 1.5g sorbitan fatty acid, 6g hydroxyethyl cellulose, 2g sodium alginate, 2g hydroxymethyl acrylate and 2.5g sodium sulfate for 24 hours and adjust the pH value with dilute sodium hydroxide solution If it is neutral, an anti-fogging surface treatment agent can be obtained.

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PUM

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Abstract

The invention belongs to the field of material chemistry, and in particular provides an antifog surface treatment agent for resin optical glasses. The antifog surface treatment agent is prepared from the following raw materials: silicate ester, a surfactant, a hydrophilia macromolecule substance, a cross-linking agent, a stabilizing agent and an alcohol solvent. By adopting the antifog surface treatment agent, the resin optical glasses are good in antifog property, good in light transmittance and good in abrasion resistance.

Description

technical field [0001] The invention relates to the field of material chemistry, and mainly relates to an anti-fog surface treatment agent (anti-fog agent) for resin optical lenses and a preparation method thereof. Background technique [0002] Transparent resin sheets are widely used in daily life, industrial production, scientific research and medical applications. At present, the more commonly used transparent materials are methacrylic resins, styrene resins, and polycarbonates. These products Both have good optical properties and mechanical properties, and have gradually replaced inorganic glass and become the mainstream of transparent materials on the market. However, no matter what kind of transparent material, when there is a certain temperature difference between the two sides, when the vapor pressure of the surrounding environment is higher than the saturated vapor pressure of the moisture on the surface of the substrate, the water vapor will accumulate on the surfa...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D7/12
Inventor 付澎马鸿飞李玉峰董锐
Owner NANJING UNIV OF TECH