RT info:eu-repo/semantics/article
T1 Transparent nanocellular PMMA: Characterization and modeling of the optical properties
A1 Martín de León, Judit
A1 Pura Ruiz, José Luis
A1 Bernardo García, Victoria
A1 Rodríguez Pérez, Miguel Ángel
AB In this work, the optical properties of transparent nanocellular polymethylmethacrylate (PMMA) have been studied, experimental and theoretically. Transmittance measurements of samples presenting different cell sizes (14, 24, 39 and 225 nm) and a constant relative density of around 0.45 have been carried out obtaining values as high as 0.94 for the sample with the smaller cell size and a thickness of 0.05 mm. In addition, the light absorption coefficient has been measured as a function of cell size and wavelength. It has been found that the transmittance has a strong dependence with the wavelength, presenting these transparent materials Rayleigh scattering. On the other hand, the transmission of visible light through these nanocellular materials has been modelled for the first time. The developed model reproduces with good accuracy the trends observed in the experimental results and provides remarkable insights into the physics mechanisms controlling the optical behavior of these materials.
SN 0032-3861
YR 2019
FD 2019
LK http://uvadoc.uva.es/handle/10324/40712
UL http://uvadoc.uva.es/handle/10324/40712
LA spa
NO Volume 170, 29 April 2019, Pages 16-23, 2019
DS UVaDOC
RD 16-abr-2024