Relationship between structure and rheological,mechanical and thermal properties of polylactide/Cloisite 30B nanocomposites |
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| Authors: | Lynda Zaidi Stéphane Bruzaud Alain Bourmaud Pascal Médéric Mustapha Kaci Yves Grohens |
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| Affiliation: | 1. Laboratoire des Matériaux Organiques, Faculté de la Technologie, Université Abderrahmane Mira, Bejaia 06000, Algeria;2. Laboratoire d'Ingénierie des Matériaux de Bretagne, Equipe E2PIC, Université de Bretagne Sud, Rue de Saint Maudé, Lorient Cedex 56321, France;3. Laboratoire d'Ingénierie des Matériaux de Bretagne, Equipe Rhéologie, Université de Bretagne Occidentale, 6 Avenue le Gorgeu, Brest Cedex 3 29238, France |
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| Abstract: | Melt‐state and solid state mechanical properties and thermal stability of polylactide layered silicate nanocomposites elaborated by melt intercalation were studied as a function of clay content. Wide angle X‐ray scattering results, transmission electron microscopy observations, and rheological measurements indicated that the clay was finely distributed in the polylactide matrix. Contrary to nonlinear mechanical properties, thermal and linear mechanical properties were shown to increase with increasing clay fraction. The nanoindentation measurements confirm the significant increase of linear mechanical properties previously observed by tensile tests. The good correlation of linear mechanical properties at the macrometric and nanometric scales is explained by the high dispersion degree of the nanofiller in the biodegradable polymer matrix. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
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| Keywords: | polylactide clay nanocomposites exfoliation |
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