Experimental evaluation of optimization method for developing ultraviolet barrier coatings

Hiroki Gonome, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

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4 Citations (Scopus)

Abstract

Ultraviolet (UV) barrier coatings can be used to protect many industrial products from UV attack. This study introduces a method of optimizing UV barrier coatings using pigment particles. The radiative properties of the pigment particles were evaluated theoretically, and the optimum particle size was decided from the absorption efficiency and the back-scattering efficiency. UV barrier coatings were prepared with zinc oxide (ZnO) and titanium dioxide (TiO2). The transmittance of the UV barrier coating was calculated theoretically. The radiative transfer in the UV barrier coating was modeled using the radiation element method by ray emission model (REM2). In order to validate the calculated results, the transmittances of these coatings were measured by a spectrophotometer. A UV barrier coating with a low UV transmittance and high VIS transmittance could be achieved. The calculated transmittance showed a similar spectral tendency with the measured one. The use of appropriate particles with optimum size, coating thickness and volume fraction will result in effective UV barrier coatings. UV barrier coatings can be achieved by the application of optical engineering.

Original languageEnglish
Pages (from-to)454-463
Number of pages10
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume133
DOIs
Publication statusPublished - 2014 Jan 1

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Keywords

  • Barrier coating
  • Radiative control
  • Titanium dioxide
  • Transmittance
  • Ultraviolet
  • Zinc oxide

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

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