Novel optical anti-fog film and preparation method thereof

An anti-fog film and optical technology, applied in the field of material chemistry, can solve the problems of unsatisfactory anti-fog effect of transparent materials, and achieve the effect of strong light transmittance and good adhesion

Inactive Publication Date: 2011-12-07
中南大学肝胆肠外科研究中心 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the unsatisfactory anti-fog effect of the transparent material prepared by the prior art, the present invention provides a technology in which the anion and cati...

Method used

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  • Novel optical anti-fog film and preparation method thereof
  • Novel optical anti-fog film and preparation method thereof
  • Novel optical anti-fog film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Reagents and Instruments

[0033] Cationic polyacrylamide (CPAM, solid content: ≥90%, molecular weight 1000-1200, China),

[0034] Acrylic (PAA, 99.9%, China)

[0035] Sodium silicate (SSI, NaO 2 %>24.0, SiO 2 >53.0, China).

[0036] The solvent is double distilled water (self-made).

[0037] The oven adopts the 601-2 type oven from Dalian Fourth Instrument Factory.

[0038] The contact angle test adopts Drop shape Analysis system DSA20 contact angle tester.

[0039] The light transmittance was measured using a Japanese Hitachi U-2001 ultraviolet spectrophotometer.

[0040] Step 1: Paint Preparation

[0041] Add water-diluted sodium silicate solution with a density of 1.0mg / mL to the cationic polyacrylamide solution dropwise, and stir evenly. The volume ratio of the two solutions is 125mL: 12.5mL. The water temperature is controlled below 60°C, and the pH value of the mixture is adjusted to 4.0 with hydrochloric acid;

[0042] Step 2: Optical Substrate Processi...

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Abstract

The invention relates to the field of material chemistry, and mainly provides an optical anti-fogging film with firm adhesion and good anti-fogging effect, and a preparation method and application thereof. Alternately coating and drying in sodium solution. The invention has good adhesion, light transmittance and anti-fog performance.

Description

technical field [0001] The invention relates to the field of material chemistry, and mainly relates to a novel optical anti-fog film and a preparation method thereof. Background technique [0002] The anti-fog film can change the surface properties of the material, and its anti-fog principle is roughly divided into two categories: ①Hydrophilic anti-fog film: reduce the contact angle of the substrate surface to water (water contact angle θ<35°), so that water droplets The surface of the material spreads out and forms a uniform water film. In this way, light reflection and refraction caused by water droplets are avoided, and the light transmittance of the material is ensured. The hydrophilic anti-fog film has a long anti-fog time, many raw materials, and is easy to purchase. ② Hydrophobic anti-fog film: increase the contact angle of the substrate surface to water (water contact angle θ>100°), so that water droplets cannot be adsorbed on the surface of the material. Wh...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D7/12G02B1/10
Inventor 张阳德李坚刘佳一潘一峰赵劲风廖明媚
Owner 中南大学肝胆肠外科研究中心
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