Light curing paint and surface treatment method

Abstract

This application relates to a UV-curable coating. The formulation of this UV-curable coating comprises 15%-38% by weight of a photosensitive resin or photosensitive modified resin, 6%-16% by weight of a filler-dispersed acrylic resin, 5%-10% by weight of abrasion-resistant and chemical-resistant acrylic resin, 0.3%-0.5% by weight of a filler dispersant, 3%-8% by weight of a filler, 0.7%-2% by weight of a photoinitiator, 0.2%-0.5% by weight of a wetting agent, and a solvent. This application also provides a surface treatment method applicable to this UV-curable coating.

Claims

1. A UV-curable coating, the formulation of which comprises: 15%-38% by weight of a photosensitive resin or a photosensitive modified resin; 6%-16% by weight of a filler-dispersed acrylic resin; 5%-10% by weight of abrasion-resistant and chemical-resistant acrylic resin; 0.3%-0.5% by weight of a filler dispersant; 3%-8% by weight of a filler; 0.7%-2% by weight of a photoinitiator; 0.2%-0.5% by weight of a wetting agent; and a solvent.

2. The photocurable coating as described in claim 1, wherein, The formulation of this UV-curable coating includes: 23%-27% by weight of the photosensitive resin; and 12%-16% by weight of the filler-dispersed acrylic resin.

3. The photocurable coating as described in claim 2, wherein, The photoinitiator includes a surface initiator and a deep initiator, and the formulation of the UV-curable coating further includes 0.2%-0.5% by weight of the surface initiator and 0.1%-0.3% by weight of the deep initiator.

4. The UV-curable coating as described in claim 3, wherein, The wetting agent includes a leveling wetting agent, the solvent includes a resin solvent and an additive solvent, and the formulation of the UV-curable coating includes 0.2%-0.4% by weight of the leveling wetting agent, 18%-28% by weight of the resin solvent and 4%-7% by weight of the additive solvent.

5. The UV-curable coating as described in claim 1, wherein, The filler contains pigments, pearlescent powder, or silver powder.

6. The photocurable coating as described in claim 1, wherein, The formulation of this UV-curable coating includes: 15%-20% by weight of the photosensitive resin; and 6%-11% by weight of the filler-dispersed acrylic resin.

7. The UV-curable coating as described in claim 1, wherein, The photoinitiator includes a surface initiator and a deep initiator, and the formulation of the UV-curable coating further includes 0.2%-0.5% by weight of the surface initiator and 0.1%-0.3% by weight of the deep initiator.

8. The UV-curable coating as described in claim 7, wherein, The wetting agent includes a leveling wetting agent, the solvent includes a resin solvent and an additive solvent, and the formulation of the UV-curable coating includes 0.2%-0.4% by weight of the leveling wetting agent, 18%-28% by weight of the resin solvent and 4%-7% by weight of the additive solvent.

9. The photocurable coating as described in claim 1, wherein, The formulation of this UV-curable coating includes: 28%-38% by weight of the photosensitive modified resin; and 12%-16% by weight of the filler-dispersed acrylic resin.

10. The photocurable coating as described in claim 9, wherein, The solvent includes a diluent, the wetting agent includes a substrate wetting agent, and the formulation of the UV-curable coating further includes a filler anti-slip agent and a filler modifier. The formulation of the UV-curable coating includes 0.3%-0.5% by weight of the substrate wetting agent, 1.5%-2.5% by weight of the filler anti-slip agent, 0.5%-0.8% by weight of the filler modifier, and 15%-25% by weight of the diluent.

11. A surface treatment method applicable to a metal part, the surface treatment method comprising: subjecting the metal part to ultrasonic solution hydrolysis treatment; subjecting the metal part to micro-arc oxidation treatment; and applying a coating layer to the surface of the metal part by spraying using a photocurable coating as described in claim 1, and then curing it.

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