Hydrophilic anti-fog coating composition with dual curing of light and heat
A dual-curing, anti-fog coating technology, applied in coatings and other directions, can solve problems such as long time required, general anti-fog performance, complex process, etc., to achieve high cross-linking density, excellent hardness and wear resistance, and good water solubility Effect
Inactive Publication Date: 2018-05-11
SHANGHAI CHENGYING NEW MATERIALS +2
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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.
[0007] In order to overcome the contradiction between the continuous anti-fog performance and wear resistance of traditional anti-fog coatings on the market, the present invention discloses a hydrophilic anti-fog coating with dual curing of light and heat
Method used
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Embodiment 1～5
[0030] Examples 1-5 relate to a photothermal dual-curing hydrophilic anti-fog coating composition, including the components and parts by weight shown in Table 1.
[0031] Using PET as the substrate, coat the paint (30% solid content) on its surface with a No. 10 wire rod, put it in an oven at 130°C for 2 minutes, and then undergo UV curing with an energy of 500mJ / cm 2 .
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Abstract
The invention discloses a hydrophilic anti-fog coating composition with photothermal dual curing; the composition comprises 32-50 parts of a hydrophilic heat-curing resin, 10-15 parts of a water-based curing agent, and 10 parts of acrylate monomers containing hydroxyl groups. ~20 parts, 10~20 parts of polymerizable surfactant, 0.5~1 part of photoinitiator; 5~10 parts of cosolvent; 400 parts of water. The hydrophilic anti-fog coating with photothermal dual curing provided by the present invention can be applied to the surface of plastic substrates. It is first cured by heat and then cured by light. It has good adhesion and can be widely used in anti-fog window film, automobile anti-fog headlights, bathroom mirrors, etc., and has a good application prospect.
Description
technical field [0001] The invention belongs to the field of photothermal dual curing coatings, in particular to a hydrophilic anti-fog coating composition with photothermal dual curing. Background technique [0002] In daily life, due to the obvious temperature difference and humidity difference on both sides of the glass. When the vaporized liquid in the air on the higher temperature side encounters the glass, it will condense on the glass surface to form small liquid droplets with poor fluidity, which will cause fog on the glass surface. Small droplets on the glass surface can cause irregular scattering, reflection and diffraction of light, which significantly affects the transmission ability of light. [0003] In order to solve these problems, the surface of the material is generally treated with hydrophobic or hydrophilic treatment. Hydrophobic resins are commonly used as perfluorinated resins. On the one hand, the price is high. On the other hand, this type of resin ...
Claims
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IPC IPC(8): C09D4/02C09D4/06C09D7/65C08J7/04
Inventor 虞明东李桐蒋天龙
Owner SHANGHAI CHENGYING NEW MATERIALS