WIT Press


Mechanical Properties And Biodegradation Behavior Of High-strength "green" Composites

Price

Free (open access)

Paper DOI

10.2495/HPSM040361

Volume

76

Pages

10

Published

2004

Size

1,240 kb

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

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