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Photocureable coating for blackboard

A technology of light-curing coatings and curing coatings, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of affecting the overall performance of light-curing materials, large volume shrinkage affecting adhesion, etc., to avoid oxygen inhibition and improve Effect of cross-linking rate and strong adhesion

Active Publication Date: 2019-01-29
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 1~4

[0037] Embodiment 1~4: A kind of photocurable coating for blackboard, described photocurable coating is made up of following components by weight, as shown in Table 1:

[0038] Table 1

[0039] components

Example 1

Example 2

Example 3

Example 4

Aliphatic polyurethane triacrylate

25 copies

40 copies

36 copies

38 copies

1,6 hexanediol diacrylate

50 copies

40 copies

45 copies

38 copies

Ethylene glycol diglycidyl ether

12 copies

14 copies

11 copies

12 copies

4-acryloylmorpholine

0.9 parts

1.2 parts

1.0 copies

0.9 parts

Alkyl modified organosiloxane

0.2 parts

0.4 parts

0.3 parts

0.4 parts

Butyl hydroxycresyl

0.6 parts

0.8 parts

0.7 parts

0.9 parts

Organic thermosetting polymethylurea resin

3 copies

4 parts

2 copies

3 copies

Sulfonyloxyketone

2 copies

4 parts

3 copies

2 copies

...

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PUM

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Abstract

The invention discloses a photocureable coating for blackboard. The photocureable coating for the blackboard is composed of the following components: aliphatic polyurethane triacrylate, 1,6-hexanedioldiacrylate, ethylene glycol diglycidyl ether, alkyl modified organosiloxane, butylated hydroxytoluene, organic thermosetting polymethylurea resin, 4-acryloylmorpholine, 2-hydroxy-2-methyl-1-phenyl-1-acetone, sulfonyloxy ketone, pigment KB7 and castor oil polyglycidyl ether. The light-cured coating for the blackboard can be cured without much heat energy, an oxygen inhibition phenomenon of the photocureable coating is effectively avoided, the printing precision is high, the curing hardness of the photocureable coating for the blackboard is high, adhesive force to a base material is high, and scratch resistance is achieved.

Description

technical field [0001] The invention relates to the field of consumables for 3D printing, in particular to the field of photocurable coatings for blackboards. Background technique [0002] 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 phenomenon in the existing UV curing system, low curing hardness, high viscosity and poor stability. [0003] Oxygen inhibition refers to the phenomenon that in the fre...

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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