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Polímeros

versão impressa ISSN 0104-1428versão On-line ISSN 1678-5169

Resumo

MEDEIROS, Vanessa da N. et al. Development of polyamide6/polyethylene/organoclay nanocomposites: the effect of the PE-g-MA compatibilizer on the rheological behavior of mixture. Polímeros [online]. 2008, vol.18, n.4, pp.302-306. ISSN 1678-5169.  https://doi.org/10.1590/S0104-14282008000400008.

The aim of this work was to evaluate the effect of PE-g-MA (5 and 10 wt.%) compatibilizer on the rheological behavior of polyamide6/polyethylene/organoclay nanocomposites. The organoclay was treated with a quaternary ammonium salt (Cetremide). In general, it was observed that the presence of compatibilizer increased the torque of PA6/PE blend and that the presence of organoclay (2 wt.%) did not appear to affect the torque behavior of the blend without compatibilizer. On the other hand, for the nanocomposite with 10 wt.% of compatibilizer and with the organoclay, a significant increase in torque was observed in comparison with other mixtures, thus pointing to strong interaction between the caly and the polymer matrices, i.e. a larger viscosity of the system, probably due to the presence of compatibilizer. The results from X ray diffraction showed that the systems presented intercalated and/or exfoliated structure.

Palavras-chave : Polyamide6; polyethylene; organoclay; nanocomposites; rheological behavior.

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