Environment-friendly water-based UV (ultraviolet) curable coating and production method

A light-curing coating, water-based technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of organic solvent environmental pollution stability and paint film mechanical properties, achieve great promotion and application value, and increase compatibility , Environmentally friendly effect

Active Publication Date: 2013-01-16
CHINA ACADEMY OF ENG PHYSICS FUNCTION MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of organic solvent environmental pollution, stability and paint film mechanical properties existing in the existing water-based UV photo-curable coatings, the invention provides an environmentally friendly water-based UV photo-curable coating and its production process

Method used

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  • Environment-friendly water-based UV (ultraviolet) curable coating and production method
  • Environment-friendly water-based UV (ultraviolet) curable coating and production method
  • Environment-friendly water-based UV (ultraviolet) curable coating and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The specific implementation steps are as follows:

[0030] (1) Add resin, emulsifier, and part of defoamer (accounting for 20% to 60% of the total amount of defoamer) into the emulsification tank and raise the temperature to 30 to 50°C and mix thoroughly;

[0031] (2) Dispersant, wetting agent, part of defoamer (accounting for 40% to 80% of the total amount of defoamer), and leveling agent are added for mixing;

[0032] (3) The solid photoinitiator and deionized water are mixed in proportion and then added to the above system according to the proportion and mixed evenly;

[0033] (4) Pass through a 600-mesh filter to obtain a milky white water-based environmentally friendly UV light-curing coating.

example 1

[0037] Example 1, comparative example one emulsification time and the performance comparison of the prepared emulsion

[0038]

[0039] Through comparison, it is found that the solvent resistance of the coating of the present invention reaches the level of imported products, and the emulsification speed is faster, the stability of the emulsion is better at 3500 revolutions on a refrigerated centrifuge, and the hardness of the prepared paint film is higher.

[0040] The water-based UV photocurable coating of the present invention can be constructed by means of roller coating, curtain coating and spray coating. The prepared coating has better adhesion on PVC / ABS / vacuum electroplating / ash wood board than grade two, can withstand 10 times of cold and heat cycles of minus 40 degrees and 40 degrees without cracking, and the hardness can be adjusted from H to 3H .

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Abstract

The invention discloses an environment-friendly water-based UV (ultraviolet) curable coating and a production method. The environment-friendly water-based UV curable coating comprises 10-40wt% of self-made polyurethane acrylate prepolymers, 1-5wt% of self-made emulsifier, 1-10wt% of photoinitiator, 0.5-2wt% of dispersing agents, 0.1-3wt% of auxiliaries and 40-70wt% of water. The production method of the coating includes steps of adding the self-made polyurethane acrylate prepolymers, the self-made emulsifier and partial defoamer into a dispersing cylinder in a reactor, heating the same to the temperature of 30-50 DEG C and uniformly mixing; cooling and adding the dispersing agents, wetting agents, partial defoamer, leveling agents, deionized water and the photoinitiator to sufficiently stir, and obtaining the ivory environment-friendly water-based UV curable coating after dedusting and filtering. The water-based UV curable coating has the advantages of environment-friendliness, good stability, good mechanical performances of film paining and the like, and the production method thereof is easy and feasible.

Description

technical field [0001] The invention relates to a coating substance and a production method, in particular to an environment-friendly water-based UV light-curing coating and a production method. Background technique [0002] With the development of high science and technology, people have higher and higher requirements for the decoration, anti-corrosion, temperature resistance, cold resistance, and stain resistance of coatings. The world coatings industry has changed from solvent-based to high-performance, pollution-free, and environmentally friendly The direction of coatings is moving by leaps and bounds. UV curing technology has developed by leaps and bounds in the past 20 years because of its energy saving, environmental protection, convenient and fast use. [0003] Water-based environmentally friendly UV curing coatings combine the advantages of water-based and UV-curing technologies, solve the inherent shortcomings of low hardness and low adhesion of water-based coatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12
Inventor 邓建国白小峰马春燕纪兰香
Owner CHINA ACADEMY OF ENG PHYSICS FUNCTION MATERIAL RES INST
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