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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 659148, 5 pages
http://dx.doi.org/10.1155/2014/659148
Research Article

Influence of Processing Type in the Morphology of Membranes Obtained from PA6/MMT Nanocomposites

Federal University of Campina Grande, Avenida Aprígio Veloso, 882 Bodocongó, 58429-140 Campina Grande, PB, Brazil

Received 30 November 2013; Revised 25 February 2014; Accepted 25 February 2014; Published 16 April 2014

Academic Editor: A. G. Barbosa de Lima

Copyright © 2014 Rodholfo da Silva Barbosa Ferreira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The nanocomposites have an extensive use in the current process of membrane preparation, taking into account their unique features as membranes. Thus, the study of nanocomposite processing to obtain membranes is highly important. In this work, Brazilian clay was used (Brasgel PA) for the preparation of polyamide/clay nanocomposite. The nanocomposites were produced in a high rotation homogenizer and in a twin screw extruder. From the nanocomposites and pure polymers processed in the two equipments, membranes were prepared by the immersion-precipitation method, using formic acid as solvent. By X-ray diffraction (XRD), the formation of exfoliated and/or partially exfoliated structures with changes in the crystalline phases of the polyamide was observed. From scanning electron microscopy images, it was observed that the processing clearly influenced the membrane morphology.