Premium
Effect of Silicone Carbide on the Elastic Properties of Starch‐Based Composites: A Three‐Phase Model
Author(s) -
Rjafiallah Said,
Guessasma Sofiane
Publication year - 2010
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201000254
Subject(s) - interphase , materials science , composite material , composite number , starch , elastic modulus , phase (matter) , modulus , silicone , filler (materials) , microstructure , chemistry , biochemistry , genetics , organic chemistry , biology
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.