Volume 29, Issue 1 pp. 14-26
Feature Article

Features, Questions and Future Challenges in Layered Silicates Clay Nanocomposites with Semicrystalline Polymer Matrices

Charef Harrats

Corresponding Author

Charef Harrats

Department of Chemical Engineering, Polymer Technology, Technical University of Eindhoven, Den Dolech 2, Helix, P. O. Box 513, 5600 MB Eindhoven, The Netherlands

Charef Harrats, Department of Chemical Engineering, Polymer Technology, Technical University of Eindhoven, Den Dolech 2, Helix, P. O. Box 513, 5600 MB Eindhoven, The Netherlands.

Gabriel Groeninckx, Department of Chemistry, Division of Molecular and Nanomaterials, Catholic University of Leuven (KULeuven), Celestijnenlaan 200F, BE-3001 Heverlee, Belgium.

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Gabriel Groeninckx

Corresponding Author

Gabriel Groeninckx

Department of Chemistry, Division of Molecular and Nanomaterials, Catholic University of Leuven (KULeuven), Celestijnenlaan 200F, BE-3001 Heverlee, Belgium

Charef Harrats, Department of Chemical Engineering, Polymer Technology, Technical University of Eindhoven, Den Dolech 2, Helix, P. O. Box 513, 5600 MB Eindhoven, The Netherlands.

Gabriel Groeninckx, Department of Chemistry, Division of Molecular and Nanomaterials, Catholic University of Leuven (KULeuven), Celestijnenlaan 200F, BE-3001 Heverlee, Belgium.

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First published: 19 December 2007
Citations: 30

Abstract

The present features review article discusses the crystallisation of the polymer matrix when containing silicate layers. The accent is put on nylons (polyamides) and poly(ethylene oxide) as typical hydrophilic polymers and, poly(propylene) from the hydrophobic group. The effects of the clay, either intercalated or exfoliated, on the crystallisation behaviour of the matrix are highlighted. In addition, the crucial aspects of the semicrystalline morphology of the matrix in the presence of the clay platelets are also debated. The overall crystallisation rate is reported to slow down for most of the crystallisable polymer matrices on account of a retarding growth effect exerted by the clay platelets. As far as the location of the exfoliated clay platelets in the polymer matrix is concerned, they are assumed to be rejected from the crystalline phase in the interspherulitic space.

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