Ultraviolet curing coating composition for tectorial color steel plate

A technology for curing coatings and color steel plates, which is applied in the direction of polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., which can solve the problems of film surface dullness, performance that cannot fully meet the needs, fine cracks, etc., and achieve adhesion fastness Outstanding, excellent adhesion fastness, good flexibility effect

Inactive Publication Date: 2013-05-01
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the performance of domestic coatings for the production of coated color steel plates cannot fully meet the needs, mainly due to the poor adhesion fastness between the coating and the organic film, which is easy to peel off, and dense fine particles will appear after the coating film is bonded to the steel plate and subjected to thermal shock. Cracks, after the coated steel

Method used

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  • Ultraviolet curing coating composition for tectorial color steel plate
  • Ultraviolet curing coating composition for tectorial color steel plate
  • Ultraviolet curing coating composition for tectorial color steel plate

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The UV-curable coating composition for coated color steel plate in this embodiment includes the components in the weight percentages shown in Table 1.

[0035] The coating composition is roll-coated on the PET film, and the coating dry weight is 3-5g / m 2 Between, 65 ℃ infrared leveling for 1 to 2 minutes, the leveling effect is better, after 500mj / cm 2 After the energy is cured, the adhesion fastness between the coating and the PET film is good (100 / 100), the temperature resistance is about 240°C, there is no crack after thermal shock, the organic solvent is resistant to rubbing for 100 times without change, and the surface is resistant to steam for 1 hour. Change, excellent overall performance.

Embodiment 2

[0037] The UV-curable coating composition for coated color steel plate in this embodiment includes the components in the weight percentages shown in Table 1.

[0038] Apply the coating roller to the PET film, the coating dry weight is 3~5g / m 2 Between, 65 ℃ infrared leveling for 1 to 2 minutes, the leveling effect is better, after 500mj / cm 2 After the energy is cured, the adhesion between the coating and the PET film is good (100 / 100). , excellent overall performance.

Embodiment 3

[0040] The UV-curable coating composition for coated color steel plate in this embodiment includes the components in the weight percentages shown in Table 1.

[0041] Apply the coating roller to the PET film, the coating dry weight is 3~5g / m 2 Between, 65 ℃ infrared leveling for 1 to 2 minutes, the leveling effect is better, after 500mj / cm 2 After the energy is cured, the adhesion between the coating and the PET film is good (100 / 100). , excellent overall performance.

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Abstract

The invention discloses an ultraviolet curing coating composition for a tectorial color steel plate. The ultraviolet curing coating composition for the tectorial color steel plate comprises the following components in percentage by weight: 5 to 20 percent of high-functional-group polyester acrylate, 15 to 32 percent of urethane acrylate, 5 to 16 percent of epoxy acrylate, 1 to 5 percent of single-functional-group acrylate monomer, 10 to 25 percent of high-functional-group acrylate monomer, 2 to 5 percent of acrylic acid esterified acrylate, 2 to 6 percent of photoinitiator, 0.1 to 1.5 percent of flatting agent, 0.01 to 0.05 percent of polymerization inhibitor, and 40 to 58 percent of solvent. Compared with the prior art, the product provided by the invention has prominent adhesion fastness with a polyester film, is quick in coating curing and compact in film formation, and has flexibility and high surface hardness; after the coating film is adhered to the steel plate and subjected to cold and hot impact, crack is avoided; and after the film coated steel plate is steamed by high-temperature water vapor, color change and dim of the surface are avoided.

Description

technical field [0001] The invention relates to the field of ultraviolet curable coatings, in particular to an ultraviolet curable coating composition for coated color steel plates. Background technique [0002] Color-coated steel plate is referred to as color-coated steel plate or color-coated steel plate. It uses high-quality cold-rolled steel plate, hot-dip galvanized steel plate, or galvanized steel plate as the substrate. After surface degreasing, phosphating, and chromate treatment, it is coated (roller coated ) or a product made by laminating an organic film (such as a PET film) with a UV-curable coating and curing by baking. It not only has the properties of high mechanical strength and easy forming of steel materials, but also has good decoration and corrosion resistance of coating materials. It has the characteristics of light weight, high strength, bright colors, and good durability. It is widely used in construction and household. Electrical appliances, interior...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D167/06C09D163/00C09D7/12
Inventor 虞明东袁慧雅王锐涛韩莲缪慧牛辉楠
Owner SHANGHAI WEIKAI CHEM
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