Degradation phenomena under water environment of cotton yarn reinforced Polylactic-acid
Recently, many green composites have been developed, and utilization of those materials have been is advanced. Because many biodegradable plastics usually show affinity to a human body, in this research, using cotton yarn and Polylactic acid (PLA), which is a typical biodegradable polymer, a green composite was developed as a medical substance. Although the mechanical properties of some biodegradable plastics were far lower than that of an engineering plastic. It is necessary to raise the mechanical properties of a biodegradable plastic to the level which is equal to metal medical material. Furthermore at the practical use, the influence from water absorption is strongly received. The material design of green composites using Cotton yarn/PLA has been done including the effect of water absorption.
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