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

被引:3
作者
Rjafiallah, Said [1 ]
Guessasma, Sofiane [1 ]
机构
[1] INRA, Res Unit BIA, F-44316 Nantes, France
关键词
composites; mechanical properties; microstructure; starch matrix; three-phase model; MECHANICAL-PROPERTIES; RENEWABLE RESOURCES; PHYSICAL-PROPERTIES; INTERPHASE ZONE; BULK MODULUS; FIBER; BIOCOMPOSITES; FILMS; CRYSTALLITES; BIOPOLYMER;
D O I
10.1002/mame.201000254
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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.
引用
收藏
页码:1116 / 1124
页数:9
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