Micro-fog spraying preparation method of photonic crystal coating

The photonic crystal coating is prepared through micro-fog spraying technology, which solves the fragility, regularity dependence and high cost problems of photonic crystals in the application of the decoration field, and achieves a photonic crystal coating with uniform color, strong structure and excellent adhesion.

CN119702389AActive Publication Date: 2025-03-28INST OF CHEM CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202411894831.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-28
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

The prior art is difficult to effectively utilize the structural colors of photonic crystals in the decoration field, mainly due to the fragility of photonic crystals, the dependence of the color on the arrangement regularity, the challenges of spraying on curved surfaces and opposite surfaces, and the high implementation cost.

Method used

A photonic crystal coating is prepared by micro-fog spraying technology, and a composite photonic crystal coating is formed by spraying a functional resin primer, an aqueous photonic crystal latex ball layer on the surface of the substrate, heating curing, spraying a protective layer and curing it by thermal or light effect.

Benefits of technology

A photonic crystal composite coating with uniform color, strong structure and excellent adhesion is achieved on the surface of planes or special-shaped parts, with iridescent visual performance and good mechanical strength and adhesion.

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Abstract

The invention discloses a micro-mist spraying preparation method of a photonic crystal coating. The method comprises the following steps: firstly, spraying a base coating solution containing functional resin on the surface of a plane or a special-shaped base material subjected to surface treatment, drying, spraying a water-based photonic crystal latex ball spraying solution in a micro-mist manner, and performing three-dimensional photonic crystal structure arrangement on latex balls to obtain a photonic crystal latex ball layer; and after heating and curing, spraying a photonic crystal protection layer spraying liquid on the photonic crystal latex ball layer in a micro-fog manner, and curing to form a film, thereby forming the composite photonic crystal coating. By means of the method, the photonic crystal composite coating which is uniform in color and thickness, firm in structure and excellent in base material adhesive force can be prepared on the surface of a plane or a special-shaped part, the included three-dimensional photonic crystal structure can achieve the photonic forbidden band effect on the specific wavelength, and the coating has the iridescent visual performance; meanwhile, the protection layer can achieve the wrapping effect on the three-dimensional photonic crystal structure, and mechanical strength and adhesive force are improved.
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