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.
KeywordsTensile Strength Water Absorption Polylactic Acid Immersion Time Fiber Volume Fraction
Unable to display preview. Download preview PDF.
- 2.S.H. Hyon, K. Jamshidi, Y. Ikada, S. Higashi, Y. Kakutani and T. Yamamuro., “Bone Filler from Poly(lactic acid)-Hydroxyapatite” Japanese Journal of Polymer Science and Technology Vol42 No.11 (1985) PP 771–776 in Japanese.Google Scholar
- 4.N. A. Weir, F. j. Buchan and J.F. Orr., “Degradation of Poly-L-lactite. Part I in vitro and in vitro physiological temperature degradation” Proc. of the institute of Mechanical Engineering. Part H, Journal of engineering in medicine. Vol, 218 No.H5 pp 307–319 (2004)Google Scholar