Mechanical Properties And Biodegradation
Behavior Of High-strength "green" Composites
Author(s)
H. Takagi & S. Ochi
Abstract
Mechanical properties and biodegradation
behavior of high-strength \“green” composites
H. Takagi1 & S. Ochi2
1Department of Mechanical Engineering, The University of Tokushima,
Japan
2 Department of Ecosystem Engineering, The University of Tokushima,
Japan
Abstract
This paper describes the development of high-strength \“green” composites; i.e.
biodegradable polymer-based composites, and their biodegradability
characteristics in a compost environment. Two kinds of \“green” composites,
unidirectional composites and cross-ply composites, were made from a starchbased
biodegradable polymer and Manila hemp fibers. The tensile strength of
\“green” composites is strongly dependent on fiber content. The tensile strength
of cross-ply composites increases with the fiber content until nearly 50% by
weight and levels off thereafter. This fiber fraction dependence is due to the
decrease in the strength of longitudinal fibers caused by damage introduced
during hot-pressing. Biodegradability of the unidirectiona
Keywords
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