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Continuous friction-resistant ultraviolet-curing antifogging coating composition and preparation of coating layer of continuous friction-resistant ultraviolet-curing antifogging coating composition

An anti-fog coating, light-curing technology, used in coatings, epoxy coatings, polyurea/polyurethane coatings, etc., can solve the problems of general anti-fog performance, complex process, and long time required.

Active Publication Date: 2021-09-10
武汉中科先进材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of the coating is greater than 2H, and the wear resistance is good, but the continuous anti-fog performance is average. The curing process takes a long time, and it needs to be cured in sections (50 ° C ~ 120 ° C), and the process is relatively complicated.

Method used

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  • Continuous friction-resistant ultraviolet-curing antifogging coating composition and preparation of coating layer of continuous friction-resistant ultraviolet-curing antifogging coating composition
  • Continuous friction-resistant ultraviolet-curing antifogging coating composition and preparation of coating layer of continuous friction-resistant ultraviolet-curing antifogging coating composition
  • Continuous friction-resistant ultraviolet-curing antifogging coating composition and preparation of coating layer of continuous friction-resistant ultraviolet-curing antifogging coating composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Preparation of Photocurable Acrylic Hydrophilic Resin A

[0079] Mix 0.1 mol of isophorone diisocyanate (IPDI) and 0.2 mol of hydroxyethyl acrylate (HEA), and the solvent is ethyl acetate. After reacting at 40°C for 2 hours, add 0.2 mol polyoxyethylene lauryl ether to continue the reaction for 3 hours.

Embodiment 2

[0081] Preparation of Photocurable Acrylic Hydrophilic Resin B

[0082] Mix 1.3 mol of dicyclohexylmethane diisocyanate (HMDI) and 2.4 mol of hydroxyethyl methacrylate (HEMA), and the solvent is ethyl acetate. After reacting at 50°C for 1 hour, 2.2 mol of cetyl alcohol polyoxyethylene ether was added to continue the reaction for 4 hours.

Embodiment 3

[0084] Preparation of Photocurable Acrylic Hydrophilic Resin C

[0085] Mix 1 mol of hexamethylene diisocyanate (HDI) and 2.4 mol of pentaerythritol triacrylate (PETA), and the solvent is ethyl acetate. After reacting at 60°C for 2 hours, 2.2 mol of stearyl polyoxyethylene ether was added to continue the reaction for 4 hours.

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Abstract

The invention aims to provide a continuous friction-resistant ultraviolet curing antifogging coating composition and a preparation method of the continuous friction-resistant ultraviolet-curing antifogging coating composition. A super-hydrophilic coating obtained after photocuring of the coating has excellent continuous antifogging performance and excellent abrasion resistance, so that some defects of antifogging coatings on the market are overcome, the coating still has excellent antifogging performance after being soaked in water for use (such as swimming goggles) for a long time, the continuous antifogging time can reach 1-2 years, and the super-hydrophilic coating is very suitable for being applied to the fields with anti-fog requirements, such as swimming goggles, car lamps, windshields, bathroom mirrors, optical lens materials and the like.

Description

technical field [0001] The invention belongs to the field of light-curing coatings, and in particular relates to an ultraviolet light-curing anti-fog coating composition. Background technique [0002] When the water vapor in the air is lower than the dew point, it will condense into tiny liquid droplets to form fog. This adverse effect often occurs on windows, bathroom mirrors, glasses, swimming and diving glasses, windshields, optical instrument lenses, car lights, indicator lights, agricultural films and other transparent materials that are closely related to our lives. As a result of the atomization of water droplets on the surface of transparent materials, not only the decrease of light transmittance will affect the vision, but sometimes it will cause harm. For example, when the droplets condense on the lens surface of precision analysis instruments such as infrared optical microscopes, the accuracy of its analysis will be reduced. [0003] In order to solve these probl...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D163/10C09D7/62C09D7/65
CPCC09D175/14C09D163/10C09D7/62C09D7/65C08L2205/04C08L63/10C08L33/04C08K9/06C08K7/26
Inventor 康翼鸿喻学锋吴列程文杰杨新耕
Owner 武汉中科先进材料科技有限公司
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