Coating material for wear-resistant teaching blackboard and preparation method thereof
A coating material, blackboard technology, applied in coatings, polyurea/polyurethane coatings, reusable writing boards, etc., can solve the problem of affecting the polymerization reaction, affecting the overall performance of light-curing materials, large volume shrinkage affecting adhesion, etc. It can reduce the viscosity and surface tension, avoid the phenomenon of oxygen inhibition, and achieve the effect of fast curing.
Active Publication Date: 2021-05-04
UC NANO TECH CO LTD
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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 photo-cured material, especially the volume shrinkage after curing affects adhesion, hardness, etc. question
Method used
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Embodiment 1~4
[0030] Embodiments 1 to 4: A coating material for a wear-resistant teaching blackboard, the coating material for a wear-resistant teaching blackboard consists of the following components in parts by weight, as shown in Table 1:
[0031] Table 1
[0032] components Example 1 Example 2 Example 3 Example 4 Aliphatic polyurethane triacrylate 20 copies 24 copies 18 copies 27 copies 1,6 hexanediol diacrylate 40 copies 48 copies 36 copies 35 copies Ethylene glycol diglycidyl ether 11 copies 13 copies 12 copies 12 copies Alkyl modified polysiloxane 3 copies 4.5 servings 2.5 servings 3.5 servings 2-Methyl methacrylate 2 copies 1.3 parts 2.3 servings 1.5 servings Butyl hydroxycresyl 1.0 copies 1.2 parts 0.8 parts 0.9 parts Organic thermosetting polymethylurea resin 3 copies 2 copies 4 parts 2 copies 4-acryloylmorpholine 1.0 copies 0.9 parts 1.1 copies 1.0 copies Su...
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Abstract
The invention discloses a coating material for a wear-resistant teaching blackboard and a preparation method thereof. The coating material for a wear-resistant teaching blackboard consists of the following components: aliphatic polyurethane triacrylate, 1,6-hexyl Glycol diacrylate, ethylene glycol diglycidyl ether, alkyl modified polysiloxane, 2‑methyl methacrylate, butyl hydroxycresyl, organic thermosetting polymethylurea resin, 4‑acryloylmorpholine , sulfonyloxyketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone and Pigment BK7. The coating material and the preparation method thereof for wear-resistant teaching blackboards of the present invention have fast curing rate and strong adhesion to the base material; secondly, the viscosity between the components of the coating material can be reduced, which is beneficial to smooth inkjet printing, It is not easy to block the nozzle, and the yield is high; at the same time, the viscosity and surface tension of the coating material containing Pigment BK7 are reduced, and the stability is good.
Description
technical field [0001] The invention relates to a paint and a preparation method thereof, in particular to a coating material for a wear-resistant teaching blackboard and a preparation method thereof. Background technique [0002] UV curing technology refers to an inkjet technology in which monomers, oligomers or polymer substrates are cured under the induction of ultraviolet light. This technology has a wide range of applications in the existing printing field, especially in digital printing technology. The application is more common. With the continuous innovation of technology, the continuous progress and improvement of digital printing technology and UV curing technology, the combination of the two UV curing digital printing technology has developed rapidly, and has occupied more and more in the digital printing industry. The higher the specific gravity. UV curing technology has the advantages of fast curing speed, high production efficiency, good mechanical and physica...
Claims
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IPC IPC(8): C09D175/14C09D7/63C09D7/65
CPCC09D7/63C09D7/65C09D175/14B43L1/04C08L75/02C08K5/1345C08K5/132C08K5/42
Inventor 刘泽江
Owner UC NANO TECH CO LTD