desenvolvimento de nanocompósitos de poliamida6/polietileno/argila organofílica: o efeito do compatibilizante pe-g-ma no comportamento reológico da mistura development of polyamide6/polyethylene/organoclay nanocomposites: the effect of the pe-g-ma compatibilizer on the rheological behavior of mixture

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ID: 211522
2008
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Abstract
O objetivo deste trabalho foi avaliar o efeito do compatibilizante PE-g-MA (5 e 10%) no comportamento reológico de nanocompósitos de poliamida6/polietileno/argila organofílica, onde a argila foi tratada com um sal quaternário de amônio (Cetremide). Em geral, observou-se que a presença do compatibilizante aumentou o torque da mistura de PA6/PE e que a presença da argila organofílica (2%) sem o compatibilizante não pareceu alterar o comportamento do torque da mistura. Por outro lado, para o nanocompósito com 10% em peso de compatibilizante e com a argila organofílica, verificou-se um aumento significativo do torque em relação às outras misturas, evidenciando maior interação da argila organofílica com as matrizes poliméricas, isto é, maior viscosidade do sistema, promovida provavelmente pela presença do compatibilizante. Os resultados de difração de raio X mostraram que os sistemas apresentaram estrutura intercalada e/ou esfoliada.
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.
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Authors ;Vanessa da N. Medeiros;Edcleide M. Araújo;Larissa F. Maia;Osanildo D. Pereira;Rafaela R. Arimateia;René A. Paz
Journal journal of the chemical society, perkin transactions 1
Year 2008
DOI
10.1590/S0104-14282008000400008
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282008000400008
Keywords
Nanocomposites polyethylene organoclay

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