Coating material for wear-resistant teaching blackboards, and preparation method of coating material

Abstract

The invention discloses a coating material for wear-resistant teaching blackboards, and a preparation method of the coating material. The coating material for the wear-resistant teaching blackboards is prepared from the following components: aliphatic polyurethane triacrylate, 1, 6 hexanediol diacrylate, ethylene glycol diglycidyl ether, alkyl modified polysiloxane, 2-methyl methacrylate, hydroxyltoluene butyl ester, organic thermosetting polymethyl urea resin, 4-acryloyl morpholine, sulfonyloxy ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone and Pigment BK7. The invention provides the coatingmaterial for the wear-resistant teaching blackboards and the preparation method of the coating material; the coating material is rapid in curing speed and strong in adhesion to a base material; secondly, the viscosity between the components of the coating material can be reduced, the inkjet smooth printing is facilitated, a spray nozzle is not easily blocked, and the yield is high; furthermore, the viscosity and surface tension of the coating material containing the 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...

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

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