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Morphological and Mechanical Characterisation of HDPE-EVA Nanocomposites

Morphological and Mechanical Characterisation of HDPE-EVA Nanocomposites This paper reports on morphological and mechanical properties of highdensity polyethylene (HDPE)-ethylene vinyl acetate (EVA) nanocomposites. The vinyl acetate (VA) content of the EVA was 9 wt%. Morphological characterization using wide angle X-ray scattering ( W A X S ) and transmission electron microscopy (TEM) have indicated the presence of intercalated morphologies interspersed with tactoids or agglomeration of clay layers with the matrix. W A X S has shown that increasing E V A 9 content reduces H D P E crystallinity, thus increasing amorphous phase content. Also, the addition of clay produces a reduction in crystallinity and an increase in 'rigid' amorphous content. The tensile modulus has shown an increase with clay content for a particular H D P E - E V A 9 blend, while producing no significant change in tensile strength. The tensile strength, however, seemed to be affected by the E V A 9 content. Increasing the E V A 9 content lowers tensile strength. Keywords: HDPE-EVA Blends, Nanocomposite, WAXS, TEM, Mechanical Testing ' Corresponding author Tel: +61-3-9925-2086; Fax: +61-3-9925-2268 E-Mail address: Sati.Bhattacharya@rmit.edu.au Vol. 26, Νos. 8-9, 2006 INTRODUCTION Polymeric nanocomposites of filled semi-crystalline polymers can be seen as a distribution of ordered http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Polymer Engineering de Gruyter

Morphological and Mechanical Characterisation of HDPE-EVA Nanocomposites

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References (12)

Publisher
de Gruyter
Copyright
Copyright © 2006 by the
ISSN
0334-6447
eISSN
2191-0340
DOI
10.1515/POLYENG.2006.26.8-9.805
Publisher site
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Abstract

This paper reports on morphological and mechanical properties of highdensity polyethylene (HDPE)-ethylene vinyl acetate (EVA) nanocomposites. The vinyl acetate (VA) content of the EVA was 9 wt%. Morphological characterization using wide angle X-ray scattering ( W A X S ) and transmission electron microscopy (TEM) have indicated the presence of intercalated morphologies interspersed with tactoids or agglomeration of clay layers with the matrix. W A X S has shown that increasing E V A 9 content reduces H D P E crystallinity, thus increasing amorphous phase content. Also, the addition of clay produces a reduction in crystallinity and an increase in 'rigid' amorphous content. The tensile modulus has shown an increase with clay content for a particular H D P E - E V A 9 blend, while producing no significant change in tensile strength. The tensile strength, however, seemed to be affected by the E V A 9 content. Increasing the E V A 9 content lowers tensile strength. Keywords: HDPE-EVA Blends, Nanocomposite, WAXS, TEM, Mechanical Testing ' Corresponding author Tel: +61-3-9925-2086; Fax: +61-3-9925-2268 E-Mail address: Sati.Bhattacharya@rmit.edu.au Vol. 26, Νos. 8-9, 2006 INTRODUCTION Polymeric nanocomposites of filled semi-crystalline polymers can be seen as a distribution of ordered

Journal

Journal of Polymer Engineering – de Gruyter

Published: Dec 1, 2006

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