Photocureable coating for teaching blackboard

一种光固化涂料、固化涂料的技术，应用在黑板领域，能够解决体积收缩大影响附着力、影响光固化材料整体性能等问题，达到改善交联速率、打印精度高、相容性好的效果

Active Publication Date: 2021-10-29
UC NANO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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 photo-cured material, especially the volume shrinkage after curing affects adhesion, hardness, etc. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] Embodiment: A photocurable coating for teaching blackboards, the photocurable coating is composed of the following components in parts by weight: 40 parts of aliphatic polyurethane triacrylate, 40 parts of 1,6 hexanediol diacrylate, ethylene glycol diacrylate 14 parts of glycidyl ether, 1.2 parts of 4-acryloyl morpholine, 0.4 parts of alkyl modified organosiloxane, 0.8 parts of butyl hydroxycresyl, 4 parts of organic thermosetting polymethylurea resin, 4 parts of sulfonyloxyketone , 8 parts of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 6 parts of Pigment BK7, and 18 parts of castor oil polyglycidyl ether.

[0015] The particle size of the above-mentioned organic thermosetting polymethylurea resin is 5-7 μm;

[0016] The viscosity of the above-mentioned photocurable coating is 20 ~ 25cp;

[0017] A preparation method for the above-mentioned light-cured coating for teaching blackboards, comprising the following steps:

[0018] (1) Put aliphatic polyurethane triacrylate, 1...

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PUM

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Abstract

The invention discloses a photocureable coating for teaching blackboards, which is composed of the following components: aliphatic polyurethane triacrylate, 1, 6-hexanediol diacrylate, ethylene glycol diglycidyl ether, alkyl modified organosiloxane, butyl hydroxytoluene, organic thermosetting polymethylurea resin, 4-acryloyl morpholine, 2-hydroxy-2-methyl-1-phenyl-1-acetone, sulfonyloxy ketone, Pigment BK7 and castor oil polyglycidyl ether. According to the photocureable coating for the teaching blackboard, the oxygen inhibition phenomenon of the photocureable coating is effectively avoided, the printing precision is high, and the photocureable coating for the teaching blackboard is high in curing hardness, high in adhesive force to a base material and resistant to scraping.

Description

technical field [0001] The invention relates to the field of blackboards, in particular to a photocurable coating for teaching blackboards. Background technique [0002] Must use blackboard when teaching, existing blackboard has gone through several stages such as cement blackboard, wooden blackboard, frosted glass blackboard, metal blackboard generally. UV curing technology has the advantages of fast curing speed, high production efficiency, good mechanical and physical properties, less pollution, energy saving, etc., and is known as a green technology. With the increasing emphasis on environmental protection and the development of science and technology, the UV curing market is developing rapidly and is widely used in coatings, adhesives, inks, electronic packaging, glass, dental restoration, photolithographic imaging, and biomedicine. Although UV curing technology has made a lot of progress, there are still some problems in application, such as serious oxygen inhibition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/63C09D7/65
CPCC09D7/63C09D7/65C09D175/14C08L2312/00C08K5/07C08K5/13
Inventor 刘泽江
Owner UC NANO TECH CO LTD
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