Degradation phenomena under water environment of cotton yarn reinforced Polylactic-acid

  • Satoshi Somiya
  • Takanobu Ooike
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)


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.


Tensile Strength Water Absorption Polylactic Acid Immersion Time Fiber Volume Fraction 
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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Faculty of science and Technology, Department of Mechanical engineeringKeio UniversityYokohamaJapan

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