UV paint

A coating, urethane acrylic technology, applied in the coating field, can solve the problems of poor corrosion resistance, poor adhesion, difficult coating, etc., and achieve the effect of good adhesion and corrosion resistance

Inactive Publication Date: 2008-10-29
MITAC PRECISION TECH(KUNSHAN) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the increasing demand for UV coatings, the industry has higher and higher requirements for the comprehensive performance of UV coatings. However, the UV coatings currently used in the industry have poor corrosion resistance and adhesion on the surface of magnesium alloys, making it difficult to coat.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preferred formula of described UV coating is represented as by weight fraction:

[0035] Tripropylene glycol diacrylate 55;

[0036] Dipentaerythritol hexaacrylate 5;

[0037] Acrylate Phosphate 5;

[0038] Polyurethane Acrylic 40;

[0039] Aliphatic urethane acrylic 10;

[0040] 1-Hydroxycyclohexylphenyl ketone 4;

[0041] Ciba Initiator 4;

[0042] Silicone leveling agent 0.4.

[0043] Among them, tripropylene glycol diacrylate is an adhesion-promoting monomer; dipentaerythritol hexaacrylate is a monomer that improves UV hardness; acrylate phosphate can improve adhesion; polyurethane acrylic resin is a main resin; aliphatic polyurethane acrylic acid It can improve wear resistance; 1-hydroxycyclohexyl phenyl ketone and Ciba initiator are photoinitiators to promote photocuring reaction; silicone leveling agent is leveling agent.

Embodiment 2

[0045] The preferred formula of described UV coating is represented as by weight fraction:

[0046] Tripropylene glycol diacrylate 50;

[0047] Dipentaerythritol hexaacrylate 4;

[0048] Acrylate Phosphate 4;

[0049] Polyurethane acrylic resin 35;

[0050] Aliphatic urethane acrylic 8;

[0051] 1-Hydroxycyclohexylphenyl ketone 4;

[0052] Ciba Initiator 4;

[0053] Silicone leveling agent 0.4.

[0054] Among them, tripropylene glycol diacrylate is an adhesion-promoting monomer; dipentaerythritol hexaacrylate is a monomer that improves UV hardness; acrylate phosphate can improve adhesion; polyurethane acrylic resin is a main resin; aliphatic polyurethane acrylic acid It can improve wear resistance; 1-hydroxycyclohexyl phenyl ketone and Ciba initiator are photoinitiators to promote photocuring reaction; silicone leveling agent is leveling agent.

Embodiment 3

[0056] The preferred formula of described UV coating is represented as by weight fraction:

[0057] Tripropylene glycol diacrylate 45;

[0058] Dipentaerythritol hexaacrylate 4;

[0059] Acrylate Phosphate 4;

[0060] Polyurethane acrylic resin 30;

[0061] Aliphatic urethane acrylic 8;

[0062] 1-Hydroxycyclohexylphenyl ketone 4;

[0063] Ciba Initiator 4;

[0064] Silicone leveling agent 0.4.

[0065] Among them, tripropylene glycol diacrylate is an adhesion-promoting monomer; dipentaerythritol hexaacrylate is a monomer that improves UV hardness; acrylate phosphate can improve adhesion; polyurethane acrylic resin is a main resin; aliphatic polyurethane acrylic acid It can improve wear resistance; 1-hydroxycyclohexyl phenyl ketone and Ciba initiator are photoinitiators to promote photocuring reaction; silicone leveling agent is leveling agent.

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PUM

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Abstract

The invention provides a UV coating used for stamped magnesium alloy. The UV coating mainly contains the following components: 43-62 weight parts of monomers, 3-7 weight parts of acrylate phosphate, 30-50 weight parts of polyurethane acrylic resin, 5-12 weight parts of aliphatic polyurethane acrylate, 6-10 weight parts of photoinitiator and 0.3-0.5 weight parts of levelling agents. The monomers include tripropylene glycol diacrylate and dipentaerythritol hexaacrylate. The photoinitiator is composed of 2-hydroxy-methoxyphenyl propane-1-one, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, 1-hydroxyl cyclohexylphenyl ketone and Ciba initiator. The levelling agent is an organic silicon or organic silane levelling agent. The UV coating has good adhesion on an oxide layer and a passivation layer of the stamped magnesium alloy and has good corrosion resistance.

Description

technical field [0001] The invention relates to a coating, in particular to a UV coating. Background technique [0002] The main components of UV coatings are composed of photosensitive resin, reactive diluent, photoinitiator and assistant. The coating uses high-energy ultraviolet light as the curing energy source. The photoinitiator in the coating absorbs ultraviolet light energy to form free radicals, triggering photosensitive Resin and reactive diluent molecules, and then a chain polymerization reaction occurs, so that the coating film is cured. [0003] The above curing method gives UV coatings many advantages: fast curing and glazing speed, energy saving, room temperature curing, superior performance and environmental protection, the film layer has high brightness, the film surface is firm and heat-resistant after drying, and can make the surface of the substrate bright, Smooth and good refraction effect. Therefore, in view of the above advantages, UV coatings have be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/00C09D175/14B05D3/06
Inventor 袁健
Owner MITAC PRECISION TECH(KUNSHAN) CORP
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