Characterization of polystyrene nanocomposites containing nanoparticles of pseudoboehmite obtained by sol-gel process
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2017
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Journal of Nano Research
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Polymeric nanocomposites are hybrid materials in which inorganic substances of
nanometric dimensions are dispersed in a polymeric matrix. These inorganic substances have high
surface area allowing a better interaction with the polymeric matrix and consequently promote
changes in the physical properties of the final composite with small additions of the same. The
preparation of nanocomposites with polymer matrix allows in many cases to find a relationship
between a low cost due to the use of lower amount of charge, reaching high level of performance. In
this work, it was obtained polystyrene nanocomposites with pseudoboehmite synthesized by the solgel
process with different concentrations of pseudoboehmite using and not using octadecylamine as
a coupling agent. The nanocomposites were prepared by the melt intercalation technique. The
pseudoboehmite nanoparticles were characterized by X-ray diffraction, scanning electron
microscopy, differential thermal analysis and thermo gravimetric analysis. The nanocomposites
were characterized by differential thermal analysis, thermogravimetric analysis, heat deflection
temperature, Vicat softening point, mechanical and rheological tests. The results showed an
increase in the thermal properties, hardness and tensile strength values and decrease in the melt
index, impact resistance and tensile elongation, showing the interaction of the filler with the
polymer matrix. Although in the samples with the presence of octadecylamine the data shows that
the thermomechanical properties practically do not vary in relation with the samples without
octadecylamine.
Como referenciar
MIRANDA, LEILA F. de; GOULART, LEID J.P.; SILVA, LEONARDO G. de A. e; DONADON, ALEXANDRE C.; YAMASAKI, FABIO Y.; MUNHOZ JUNIOR, ANTONIO H. Characterization of polystyrene nanocomposites containing nanoparticles of pseudoboehmite obtained by sol-gel process. Journal of Nano Research, v. 47, p. 96-105, 2017. DOI: 10.4028/www.scientific.net/JNanoR.47.96. Disponível em: http://repositorio.ipen.br/handle/123456789/31129. Acesso em: 27 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.