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Light-curing coatings for blackboards

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

Active Publication Date: 2021-05-04
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 2-Hydroxy-2-methyl-1-phenyl-1-propanone 6 servings 8 servings 9 servings 7 co...

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PUM

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Abstract

The invention discloses a photocurable coating for blackboards. The photocurable coating for blackboards consists of the following components: aliphatic polyurethane triacrylate, 1,6 hexanediol diacrylate, ethylene glycol diglycidyl ether, Alkyl-modified organosiloxane, butyl hydroxycresyl, organic thermosetting polymethylurea resin, 4‑acryloylmorpholine, 2‑hydroxy‑2‑methyl‑1‑phenyl‑1‑acetone, sulfonyloxy Ketones, Pigment BK7 and Castor Oil Polyglycidyl Ether. The photocurable coating for blackboards of the present invention can be cured without too much heat energy, effectively avoids the phenomenon of oxygen inhibition of photocurable coatings, and has high printing accuracy, and the photocurable coating for blackboards has high curing hardness and strong adhesion to substrates Strong and scratch resistant.

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 Patents(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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