UV curable antifogging paint composition and preparation method thereof

An anti-fog coating and composition technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of general continuous anti-fog performance, complex process, long time required, etc., to ensure continuous anti-fog performance, cross-linking The effect of increased density and improved wear resistance

Inactive Publication Date: 2016-12-21
SHANGHAI CHENGYING NEW MATERIALS +2
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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 (50-120 ° C), and the process is relatively complicated.

Method used

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  • UV curable antifogging paint composition and preparation method thereof
  • UV curable antifogging paint composition and preparation method thereof
  • UV curable antifogging paint composition and preparation method thereof

Examples

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] The formulas of each embodiment and comparative example are shown in Table 1, and the hydrophilic hyperbranched urethane acrylate described in Table 1 is prepared by the following method, wherein the solid content is 50%:

[0032] Using polyethylene glycol and diisocyanate as raw materials, react in ethyl acetate at 75-80°C for 2-3 hours to obtain a polyurethane resin with double-terminal isocyanate groups; then add hydroxyethyl acrylate and react at 75-80°C for 1 ~2 hours, obtain the polyu...

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PUM

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Abstract

The invention provides a UV curable antifogging paint composition and a preparation method thereof. The paint composition comprises the following components: hydrophilic light cured resin, hydrophobic light cured resin, a hydrophilic light cured monomer, a photoinitiator, a solvent and an assistant. According to the invention, through use of the hyperbranched light cured resin with excellent hydrophility and the polymerizable surfactant, and cooperation with the high functionality hydrophobic light cured resin, a hydrophilicity and hydrophobicity partially cross-linked net structure can be formed after photocuring. Specifically, the hydrophilic part has excellent hydrophilic properties, so that water droplets can be easily spread on the coating to form a water film without fogging, and the hydrophobic part plays an anchorage point role in the coating, and the crosslinking density is increased, thus ensuring that the coating cannot be dissolved due to swelling in the circumstance of a large amount of water.

Description

technical field [0001] The invention relates to an ultraviolet light curing anti-fog coating composition and a preparation method thereof, belonging to the technical field of light curing coatings. 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. When the fo...

Claims

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Application Information

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IPC IPC(8): C09D175/14C08G18/67C08G18/48C08G18/42C08G18/10
CPCC08G18/10C08G18/4833C08G18/672C08L2205/025C09D175/14C08L75/14C08L63/10C08L67/06C08G18/42C08G18/48
Inventor 虞明东王艳梅李桐王晨
Owner SHANGHAI CHENGYING NEW MATERIALS
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