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Open AccessFeature PaperCommunication

Rapid Coating of Ultraviolet Shielding Colloidal Crystals

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College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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China National Inspection & Testing Centre for Ophthalmic Optic Glass and Enamel Products, Donghua University, Shanghai 201620, China
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Aerospace System Engineering Shanghai, Shanghai 201108, China
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School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China
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Modern Service Department, College of International Vocational Education, Shanghai Polytechnic University, Shanghai 201209, China
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Research Institute, Donghua University, Shanghai 201620, China
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Research Center of Resource Recycling Science and Engineering, Shanghai Polytechnic University, Shanghai 201209, China
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Authors to whom correspondence should be addressed.
Crystals 2020, 10(6), 502; https://doi.org/10.3390/cryst10060502
Received: 27 April 2020 / Revised: 2 June 2020 / Accepted: 8 June 2020 / Published: 12 June 2020
(This article belongs to the Special Issue Particle Synthesis by Colloidal Assembly)
A facile spray coating preparation of ultraviolet (UV) shielding Poly(methyl methacrylate) (PMMA) based colloidal photonic crystal (PC) films was presented, where the UV radiation was physically resisted by the periodic structure. The specific wavelength within the UV regime could be tuned as required by varying the size of the monodispersed PMMA colloids. Such crystal coatings could be rapidly prepared in optical glasses with controllable thickness of ~5 μm, which could simultaneously resist UV-254 with the efficiency of 77.43%. The monochromaticity of the crystal coatings ensures their potential in UV shielding materials of direct physical skin contact type. View Full-Text
Keywords: colloidal crystal; photonic crystal; UV shielding; coating; self-assembly colloidal crystal; photonic crystal; UV shielding; coating; self-assembly
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MDPI and ACS Style

Wang, L.; Xu, Y.; Chu, Z.; Tang, W.; Qiu, Y.; Zhao, X.; Jiang, W.; Ye, J.; Chen, C. Rapid Coating of Ultraviolet Shielding Colloidal Crystals. Crystals 2020, 10, 502.

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