Novel water-based low-gloss ultraviolet-curable paint and preparation and application methods thereof

Abstract

The invention discloses a novel water-based low-gloss ultraviolet-curable paint and preparation and application methods thereof. According to the technical scheme, the novel water-based low-gloss ultraviolet-curable paint is composed of, by weight part, 3-5 parts of waterborne polyurethane acrylate A, 15-20 parts of waterborne polyurethane acrylate B, 10-15 parts of waterborne polyurethane acrylate C, 30-41 parts of mixed waterborne reactive diluent, 3-10 parts of matting powder A, 5-10 parts of matting powder B, 2-3 parts of wax powder, 2-3 parts of wax slurry, 0.3-1 part of dispersing agent,0.3-0.5 part of defoaming agent, 0.3-0.5 part of flatting agent, 2-4 parts of auxiliary initiator, 2-4 parts of photoinitiator A and 2-4 parts of photoinitiator B. According to the novel water-basedlow-gloss ultraviolet-curable paint and the preparation and application methods thereof, the novel water-based low-gloss ultraviolet-curable paint can achieve level-5 matting effects after being dried, and meanwhile, is uniform in surface gloss, fine in hand feeling, high in transparency and resistance to coin scratching and applicable to ultralow-matting products.

Description

【Technical field】 [0001] The invention belongs to the technical field of polymer coatings, and in particular relates to a novel water-based low-gloss ultraviolet-curing coating and a preparation and application method thereof. 【Background technique】 [0002] The current UV-curable coatings on the market are basically oil-based UV-curable coatings. Under the action of ultraviolet light, the photosensitive substances in the system of UV-curable coatings can generate active particles or groups through photochemical reactions, thereby triggering activity in the system. The resin is crosslinked and polymerized to obtain a hardened paint film. Most of the products on the market have the characteristics of strong odor, large paint film shrinkage, brittle paint film and not easy to fade. Among them, the ultra-low matte product has high viscosity and cannot be recycled. It is easy to thicken, not level, not easy to dry, and has a strong residual taste, which cannot meet the market de...

AI Technical Summary

Problems solved by technology

[0002] The current UV-curable coatings on the market are basically oil-based UV-curable coatings. Under the action of ultraviolet light, the photosensitive substances in the system of UV-curable coatings can generate active particles or groups through photochemical reactions, thereby triggering activity in the system. The resin is crosslinked and polymerized to obtain a hardened paint film. Most of the products on the market have the characteristics of strong odor, large paint film shrinkage, brittle paint film and not easy to fade. Among them, the ultra-low matte product has high viscosity and cannot be recycled. It is easy to thicken, not level, not easy to dry, and has a strong residual taste, which cannot meet the market demand. The few water-based UV-curable coatings on the market also have low solid content, poor filling, easy whitening of the paint film, and water resistance. Easy to crack, easy to peel off paint, not resistant to scratches, etc.

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