Water-based anti-dazzle UV coating, hard coated film and preparation method of hard coated film

Abstract

The invention provides water-based anti-dazzle UV coating. The water-based anti-dazzle UV coasting comprises, by weight, 30-90 parts of waterborne polyurethane urethane acrylate prepolymer, 10-60 parts of diluting monomers, 5-100 parts of anti-dazzle particles, 0.05-10 parts of waterborne wetting dispersant, 0.05-5 parts of waterborne flatting agents, 1-20 parts of water, 0.5-10 parts of waterborne photoinitiator and 1-30 parts of waterborne isocyanate curing agents. The water-based anti-dazzle UV coating is water-based coating and is environmentally friendly, waterborne isocyanate curing agents are matched with the waterborne polyurethane urethane acrylate prepolymer and the diluting monomers, and the overall abrasion resistance of a coating obtained after the water-based anti-dazzle UV coating is cured can be obviously improved. The invention further provides a hard coated film and a preparation method of the hard coated film. An experimental result indicates that the rigidity of the hard coated film formed by the coating is 3 H, and no scratch is generated even though the hard collated film is rubbed by 1,000 g of loads 20 times.

Description

technical field [0001] The invention belongs to the technical field of water-based coatings, and in particular relates to a water-based anti-glare UV coating, a cured film and a preparation method thereof. Background technique [0002] On the display screen of a liquid crystal display or a plasma display, in order to protect the screen from being scratched, a layer of high light-transmitting hardened film needs to be pasted on the display screen. However, when the general high-transparency hardened film is used, the phenomenon of "glare" often occurs due to the reflection of the surface of the board. "Glare" not only affects the visibility of the screen, but also causes certain damage to human eyes. At present, the anti-glare effect can be achieved by adding a certain amount of anti-glare particles to the hardened coating to soften the light reflected from the surface of the film. [0003] Due to the characteristics of high efficiency, wide application, economy, energy sav...

AI Technical Summary

Problems solved by technology

However, compared with traditional solvent-based anti-glare UV coatings, the performance of water-based anti-glare UV coatings is lower than that of solvent-based anti-glare UV coatings, which is mainly determined by the film-forming mechanism of water-based anti-glare UV coatings. Water-based anti-glare UV coatings After drying into a film, the tightness of the film is not as good as that of solvent-based anti-glare UV coatings, so that the properties of the cured coating film, such as hardness and abrasion resistance, are not as good as those of solvent-based anti-glare UV coatings.

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