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Plastic surface aqueous photocurable coating

A light-curing coating, water-based technology, applied in epoxy resin coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems affecting the hygienic safety indicators and long-term performance of cured products, environmental and human health hazards, human hazards, etc. problems, to achieve the effect of improving hardness and wear resistance, long service life, and reducing health hazards

Inactive Publication Date: 2013-06-19
JIANGSU JURU ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional UV curing materials contain reactive diluent monomers, some of which are harmful to the environment and human health, and many reactive monomers are difficult to fully react during the UV curing process, and the residual monomers are permeable, which will affect curing Health and safety indicators and long-term performance of products
Moreover, in the production process of the existing light-cured coatings, in order to achieve a good effect of leveling the coatings, a large amount of organic solvents are still used, which will cause the following hazards to the human body:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] First, mix epoxy acrylate, polyurethane acrylate and water together according to the above ratio, stir at a high speed of 800-1500r / min for 40-50 minutes, and then add polytetrafluoroethylene wax , the wetting leveling agent and the initiator are stirred for 10-20 minutes until they are evenly stirred, and the present invention is obtained.

[0033] The concrete consumption of above-mentioned each material is as follows:

[0034] Epoxyacrylate: 10%

[0035] Polyurethane Acrylate: 62%

[0036] Water: 20%

[0037] Wetting and leveling agent: 1%

[0038] Waterborne Initiator: 5%

[0039] PTFE wax 2%

Embodiment 2

[0041] Preparation method is with embodiment 1, and difference is that the consumption of each component is as follows:

[0042] Epoxyacrylate: 20%

[0043] Polyurethane Acrylate: 40%

[0044] Water: 30%

[0045] Wetting and leveling agent: 1%

[0046] Waterborne Initiator: 8%

[0047] PTFE Wax 1%

Embodiment 3

[0049] Preparation method is with embodiment 1, and difference is that the consumption of each component is as follows:

[0050] Difunctional acrylate: 30%

[0051] Urethane Acrylate: 30%

[0052] Water: 26.5%

[0053] Wetting and leveling agent: 2%

[0054] Waterborne Initiator: 10%

[0055] PTFE Wax 1.5%.

[0056] The using method of the present invention is as follows:

[0057] Add appropriate amount of water in the present invention to adjust spray viscosity to 10″±0.5″→W71 spray gun spray film thickness 20±2mm→infrared heating (65°C±5°C)→ultraviolet (800-1200mj / cm 2 ) energy must be completed within 6 seconds → coating film forming.

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PUM

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Abstract

The present invention relates to a plastic surface aqueous photocurable coating, comprising the following components by weight: 10-60% of epoxy acrylate, 10-60% of urethane acrylate, 1-2% of a wetting leveling agent, 5-10% of an aqueous initiator, 1-2% of polytetrafluoroethylene wax, and the balance being water. The invention helps to reduce toxicity and irritation, reduce VOC emissions, reduce coating inflammability, and effectively improve the hardness and wear resistance of the aqueous photocurable coating. Compared with other aqueous photocurable coatings, the coating has a longer life.

Description

technical field [0001] The invention relates to a fine chemical material, in particular to a water-based photocurable coating for plastic surfaces. Background technique [0002] Traditional UV curing materials contain reactive diluent monomers, some of which are harmful to the environment and human health, and many reactive monomers are difficult to fully react during the UV curing process, and the residual monomers are permeable, which will affect curing Health and safety indicators and long-term performance of products. Moreover, in the production process of the existing light-cured coatings, in order to achieve a good effect of leveling the coatings, a large amount of organic solvents are still used, which will cause the following hazards to the human body: [0003] 1) Hazards caused by skin contact: [0004] Organic solvent vapor can irritate the mucous membranes of the eyes and cause tears; contact with the skin will dissolve skin oil and penetrate into the tissue, di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/14C09D7/12C08J7/04
Inventor 张晓琛
Owner JIANGSU JURU ELECTRONICS
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