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Home  >  Journal list  >  Journal of the Society of Materials Science, Japan  >  Vol.63  No.4 (2014)  >  pp.297-302

Journal of the Society of Materials Science, Japan
<<Previous article Vol.63  No.4 (2014)   pp.297 - 302 Next article>>

Surface Modification of Microfibrillated Cellulose and Their Composites with Poly(lactic acid)

Masatoshi OYAMA1), Daisuke ISHII2), Tadashi MATSUMOTO3), Hisao HAYASHI4)
1) Manufacturing Promotion Division, Department of Commerce, Industry, Tourism and Labor, Shiga Prefecture 2) Graduate School of Agricultural and Life Sciences, The University of Tokyo 3) Northeastern Industrial Research Center of Shiga Prefecture 4) Faculty of Science and Technology, Ryukoku Univ.

Effect of surface acetylation and grafting of poly(lactic acid) (PLA) on mechanical properties of microfibrillated cellulose (MFC)/PLA all-biomass composite was investigated. As well as the preparation of surface-acetylated or PLA-grafted MFC, grafting of PLA on surface-acetylated MFC was attempted. The introduction of acetyl groups and PLA graft chains on MFC surface was confirmed by FTIR measurements. However, grafting of PLA chains to surface-acetylated MFC (AcMFC) was not successful, possibly because of the lowering of reaction sites on the MFC surface. Young’s modulus and maximum stress of PLA was enhanced by the addition of AcMFC. However, crystallization of PLA was prevented by AcMFC. In contrast, addition of PLA-grafted MFC promoted the crystallization of PLA.


Keyword:
Microfibrillated cellulose, Acetylation, Poly(lactic acid), Graft polymerization, Crystallization

Received: August 01, 2013
Published online: April 20, 2014
Copyright © 2014 by The Society of Materials Science, Japan

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