Journal of the Serbian Chemical Society 2011 Volume 76, Issue 8, Pages: 1153-1161
https://doi.org/10.2298/JSC100330094M
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PMMA-Y2O3 (Eu3+) nanocomposites: Optical and mechanical properties
Musbah Salah S. (Faculty of Technology and Metallurgy, Belgrade)
Radojević Vesna J. (Faculty of Technology and Metallurgy, Belgrade)
Borna Nadežda V. (Faculty of Technology and Metallurgy, Belgrade)
Stojanović Dušica B. (Faculty of Technology and Metallurgy, Belgrade)
Dramićanin Miroslav D. (Institute of Nuclear Sciences "Vinča", Belgrade)
Marinković Aleksandar D. (Faculty of Technology and Metallurgy, Belgrade)
Aleksić Radoslav R. (Faculty of Technology and Metallurgy, Belgrade)
The results of a study related to the processing and characterization of
PMMA-Y2O3 (Eu3+) nanocomposites are presented herein. The nanocomposite
samples were prepared using a laboratory mixing molder with different
contents of Eu-ion doped Y2O3 nanophosphor powder. The influence of particle
content on the optical and dynamic mechanical properties of the
nanocomposites was investigated. The intensity of the luminescence emission
spectra increased as the nanophosphor content in the composite increased.
The results of dynamic mechanical analysis revealed that the storage
modulus, loss modulus and glass transition temperature (Tg) of the polymer
composites increased with increasing content of the nanophosphor powder. The
microhardness data also confirmed that the hardness number increased with
nanoparticles concentration in the PMMA nanocomposites. The obtained results
revealed a relatively linear relationship between Tg and the Vickers
hardness.
Keywords: nanocomposites, luminescence, mechanical properties, dynamic mechanical analysis, microhardness