Mechanical and thermomechanical properties of polyamide 6/Brazilian organoclay nanocomposites
AUTOR(ES)
Paz, Renê Anisio da, Leite, Amanda Melissa Damião, Araújo, Edcleide Maria, Medeiros, Vanessa da Nóbrega, Melo, Tomás Jeferson Alves de, Pessan, Luiz Antônio
FONTE
Polímeros
DATA DE PUBLICAÇÃO
15/03/2016
RESUMO
Abstract Polymer/clay nanocomposites are a new class of composites with polymer matrices where the disperse phase is a silicate with elementary particles that have at least one of dimensions in nanometer order. Polyamide 6/Brazilian organoclay nanocomposites were prepared by melt intercalation, and the mechanical, thermal and thermomechanical properties were studied. The structure and morphology of the nanocomposites were evaluated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). It was verified by XRD and TEM analysis that all systems presented exfoliated structure predominantly. By thermogravimetry (TG), nanocomposites showed higher stabilities in relation to pure polymer. It was observed that the nanocomposites showed better mechanical properties compared to the properties of polyamide 6. The heat deflection temperature (HDT) values of the nanocomposites showed a significant increase in relation to pure polymer.
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