A photocurable coating, optical film and application thereof

By using a highly refractive index reactive dispersing agent, the problem of poor nano particles in the light curing coatings is solved, and the optical curing coatings with high particle content and high refractive index are realized, which improves the performance and stability of the coating.

CN118359953BActive Publication Date: 2025-01-24NINGBO TIANXUAN NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202410794066.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-19
Publication Date
2025-01-24
Estimated Expiration
2044-06-19

AI Technical Summary

Technical Problem

The poor compatibility between inorganic nanoparticles and organic photocuring resins in existing photocuring coatings makes it difficult to disperse nanoparticles evenly, limiting the realization of high particle content and high refractive index of photocuring coatings.

Method used

A reactive dispersant with high refractive index, which contains hydrophilic groups, oil groups and acrylic groups, can effectively reduce the viscosity of light curing coatings, improve the decentralized stability of nanoparticles, and light up with the light. The cured compound reaction to improve the wear resistance, adhesion and strength of the coating.

Benefits of technology

The preparation of light -curing coatings with high nanoparticle content is realized, and the light transmission rate, abrasion resistance and stability of the coating are improved, and the production cost and environmental risk are reduced.

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Abstract

The present invention discloses a photocurable coating, an optical film and applications thereof. The photocurable coating comprises a photocurable compound, nanoparticles, a photoinitiator and a reactive dispersant, wherein the reactive dispersant comprises a hydrophilic group, a lipophilic group and an acrylate group, wherein the lipophilic group is derived from a lipophilic compound comprising a monofunctional high-refractive monomer having a refractive index greater than 1.5. The reactive dispersant in the photocurable coating has good compatibility with the nanoparticles and the photocurable compound, respectively, and has a significant viscosity reduction effect, and can stably disperse the nanoparticles in the photocurable compound, which is conducive to the preparation of a photocurable coating with high transparency and high nanoparticle content. At the same time, the reactive dispersant can react with the photocurable compound to improve the surface performance and wear resistance of the coating prepared by the photocurable coating.
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Citation Information

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