Photocureable coating for anodization

A light-curing coating and anodizing technology, applied in the coating field, can solve the problems of difficult anode metal workpiece adhesion, difficult adhesion and bite force, low surface tension, etc., and achieve good protection, scratch resistance, aesthetics, economical Cost and man-hour labor, the effect of reducing the drying shrinkage force

Inactive Publication Date: 2012-07-25
CHANGSHU FANGTA COATING CHEM
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Because conventional light-curing coatings are photopolymerized and cross-linked and dried, the film-forming time is short (generally within 30 seconds) and the film shrinkage is large. In addition, the anodic

Method used

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Embodiment Construction

[0033] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0034] A kind of light-cured coating that is used for anodic electroplating provided by the present invention, the composition of this light-cured coating and its weight ratio comprise:

[0035] Photoinitiator 2%

[0036] Leveling agent 0.5%

[0037] Adhesion Promoter 2%

[0038] Six tube energy polyurethane resin 10%

[0039] Two-tube energy polyurethane resin 15%

[0040] Tri-tube solvent-based polyurethane 15%

[0041] Double tube energy monomer 27.5%

[0042] Single tube energy monomer 5%

[0043] Trifunctional monomer 17.5%

[0044] Thermoplastic acrylic 5.5%.

[0045] Among them, the six-tube energy polyurethane resin and the two-tube energy polyurethane resin are aliphatic functio...

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PUM

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Abstract

The invention discloses a photocureable coating for anodization. The photocureable coating comprises the following compositions by weight: a photoinitiator, a flatting agent, an adhesion promoter, hexa-functional polyurethane resin, bifunctional polyurethane resin, tri-functional solvent polyurethane, a bifunctional monomer, a single-functional monomer, a tri-functional monomer and thermoplastic acrylic resin, wherein the hexa-functional polyurethane resin and the bifunctional polyurethane resin are aliphatic functional polyurethane acrylates, and the tri-functional solvent polyurethane is modified solvent polyurethane resin. Based on such a mode, the photocureable coating for anodization provided by the invention can be used for carry outing one-time coating without pretreatment, thereby saving the cost, the working hour and labor; meanwhile, the adhesion of the coating on anodic metal polar materials is ensured, and the strict performance test requirements of products can be guaranteed, so that the photocureable coating for anodization achieves a good protective anti-scratching and aesthetic effect on anodic electrophoretic workpieces coated with the photocureable coating.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a light-curing coating for anodic plating, which is used for 3C electronic consumer products such as digital cameras, notebook computers, mobile phones and home appliances. Background technique [0002] Paint is widely used as an anti-corrosion coating, whether it is the surface of mechanical equipment, frames, bridges and cement buildings produced in various factories, or the surface of public facilities such as viaducts, utility poles, and road guardrails in cities. Paints of various colors are used as the anti-corrosion layer, which not only plays the role of anti-corrosion, but also has a more beautiful effect. [0003] Traditional coating curing usually removes the solvent in the polymer solution by heating, that is, physical drying, to obtain a hardened paint film. Photocurable coatings are relatively advanced coatings in recent years. They use the energy of ultraviolet light to in...

Claims

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Application Information

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IPC IPC(8): C09D175/14
Inventor 钱建良
Owner CHANGSHU FANGTA COATING CHEM
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