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Effect of Silicone Carbide on the Elastic Properties of Starch-Based Composites: A Three-Phase Model

✍ Scribed by Said Rjafiallah; Sofiane Guessasma

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 704 KB
Volume: 295
Category: Article
ISSN: 1438-7492
DOI: 10.1002/mame.201000254

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✦ Synopsis

Abstract

The effect of a rigid filler on the elastic properties of starch‐based composites is investigated. Thermomolding of the targeted composite is conducted using a starch matrix with varying silicone carbide content. Mechanical testing reveals that the composite's Young modulus cannot be rationalized using two‐phase analytical models. The effect of a weak interphase region is highlighted using a finite‐element model that assumes the generation of virtual microstructures. Numerical results are discussed by describing the influence of the structural and interphase parameters on the composite's elastic modulus. Identification of optimal interphase parameters quantitatively demonstrates the weak adhesion between intrinsic phases for all studied filler fractions. magnified image

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