A kind of fast-drying ultraviolet light curing coating

A technology for curing coatings and ultraviolet light, which is applied in the direction of polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as slow curing speed, consumption of free radicals, and impact on polymerization reactions, so as to reduce energy efficiency and radiate energy. , the effect of high coagulation content

Active Publication Date: 2018-05-04
佛山市顺德区蓝顿涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a serious phenomenon of oxygen inhibition in the existing UV curing system. Oxygen inhibition refers to the phenomenon that free radicals are consumed due to the presence of oxygen in the free radical photopolymerization system, which affects the polymerization reaction.
When the photopolymerization system is cured in the air, the oxygen in the air will make the photo-cured surface not completely cured and sticky, which seriously affects the overall performance of the material after photo-curing, especially the large volume shrinkage after curing affects the adhesion and hardness. And other issues
The photoinitiators commonly used in the existing UV curing, such as 1173, etc., due to the slow curing speed, further aggravate the occurrence of oxygen inhibition

Method used

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  • A kind of fast-drying ultraviolet light curing coating
  • A kind of fast-drying ultraviolet light curing coating
  • A kind of fast-drying ultraviolet light curing coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A UV-curable coating consisting of the following components by weight percentage:

[0033] Hyperbranched polyester acrylic resin 18%; difunctional aromatic polyether urethane acrylate 25%; 2-phenoxyethyl acrylate 14%; diethylene glycol divinyl ether 12%; ethylene glycol Diglycidyl ether 13%; photoinitiator 0.8%; BYK354 0.5%; BYK141 0.5%; Tego 655 0.5%; supplement to 100% with butyl acetate.

Embodiment 2

[0035] A UV-curable coating consisting of the following components by weight percentage:

[0036] Hyperbranched polyester acrylic resin 15%; difunctional aromatic polyether urethane acrylate 29%; 2-phenoxyethyl acrylate 12%; diethylene glycol divinyl ether 15%; ethylene glycol Diglycidyl ether 11%; photoinitiator 1%; BYK354 0.5%; BYK141 0.5%; Tego 655 0.5%; supplement to 100% with n-butanol.

Embodiment 3

[0038] A UV-curable coating consisting of the following components by weight percentage:

[0039] Hyperbranched polyester acrylic resin 19%; difunctional aromatic polyether urethane acrylate 19%; 2-phenoxyethyl acrylate 13%; diethylene glycol divinyl ether 9%; ethylene glycol Diglycidyl ether 11%; photoinitiator 0.5%; BYK354 0.5%; BYK141 0.5%; Tego 655 0.5%; supplement to 100% with ethyl acetate.

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Abstract

The invention relates to the field of coating, in particular to a fast-drying type ultraviolet curing coating. The fast-drying type ultraviolet curing coating is prepared from components in percentage by weight as follows: 15%-20% of hyperbranched polyester acrylic resin, 18%-30% of bifunctionality aromatic polyether urethane acrylate, 30%-45% of active monomers, 0.5%-1% of a photoinitiator, 0.5%-2.5% of a functional agent and the balance of a diluent. The novel photoinitiator is adopted and matched with corresponding resin and monomers, so that the coating has higher gel content, strength and adhesion after photocuring.

Description

Technical field [0001] The invention relates to the field of coatings, in particular to a quick-drying ultraviolet curing coating. Background technique [0002] UV curing is a polymer material in which a photosensitive resin system undergoes polymerization and crosslinking under UV light irradiation to form a three-dimensional network. Ultraviolet curing technology is known as green technology, which has the advantages of energy saving, environmental protection, high efficiency, and versatility. With the increasing attention of human beings to environmental protection and the advancement of science and technology, the UV curing market is developing rapidly. UV curing technology has been widely used in coatings, adhesives, inks, electronic packaging, dental restoration, lithography imaging, and biomedicine And other fields. [0003] In the UV-curable resin system, the photoinitiator plays a decisive role in the curing of the prepolymer. It is excited by ultraviolet radiation to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D167/06C08F2/48
CPCC08F2/48C09D167/06C09D175/14C08L67/06C08L75/14
Inventor 杨杰
Owner 佛山市顺德区蓝顿涂料有限公司
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