Mathematical modelling of sound transmission loss performances of different coloured surfaces coated with polyurethane-based paint

Ergin Esen H., Yagimli M., TOZAN H., Yalcin G., Arca E.

Transactions of the Institute of Metal Finishing, vol.98, no.5, pp.271-276, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 98 Issue: 5
  • Publication Date: 2020
  • Doi Number: 10.1080/00202967.2020.1802100
  • Journal Name: Transactions of the Institute of Metal Finishing
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.271-276
  • Keywords: Coating, sound transmission loss, colour, LAB values
  • Istanbul Medipol University Affiliated: Yes


The aim of this study is to investigate the effect of morphologies and the structure of polyurethane-based coatings created by different colour pigments, on sound transmission loss properties. To achieve this goal, coatings were created in different concentrations of 5%, 7% and 9% with red, green, orange and yellow pigments. The coatings were applied on glass surfaces and the sound transmission loss was measured by an experimental arrangement containing a microphone and a decibel meter. The effect of surface tension energy, surface roughness, reflection percentages and concentration of pigments were found to be negligible on the sound transmission loss, whereas the LAB colour codes have a determining effect. In the scope of this study, a new method and mathematical model were created to help measure the sound transmission loss on a surface, in which sound signal was carried with a laser beam via a system created in the laboratory.