Properties of polyamide 6/clay nanocomposites processed by low cost bentonite and different organic modifiers |
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Authors: | D García-López I Gobernado-Mitre J F Fernández J C Merino J M Pastor |
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Affiliation: | (1) Center for Automotive Research and Development (CIDAUT), Technological Park of Boecillo, 47151 Valladolid, Spain;(2) Electroceramic Department, Instituto de Cerámica y Vidrio, CSIC. Kelsen 5, 28049 Madrid, Spain;(3) Dpto. Física de la Materia Condensada, E.T.S.I.I. Universidad de Valladolid, 47011 Valladolid, Spain |
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Abstract: | Nanocomposites based on polyamide 6 have been directly prepared by melt compounding, using modified low cost bentonites by
three selected quaternary ammonium cations, in particular quaternized octadecylamine (ODA), dimethyl benzyl hydrogenated tallow
quaternary ammonium (B2MTH) and dimethyl hydrogenated ditallow quaternary ammonium (2M2TH). Thermal stability of organic modifiers
and organoclays has been studied by TGA and results allow evaluating the degree of modifier incorporation into clay galleries.
The influence of the organic modifier on the morphology and properties of the obtained nanocomposites has been studied by
X-ray diffraction and TEM analysis. Depending on the degree of bentonite modification, different mechanisms were reported
to explain the improved mechanical properties of the resulting nanocomposites. |
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Keywords: | Nanocomposites Polyamide 6 Organic modifier Bentonite Melt compounding |
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