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Reactive Compatibilization of Short-Fiber Reinforced Poly(lactic acid) Biocomposites

Phornwalan Nanthananon1, Manus Seadan2, Sommai Pivsa-Art3, Hiroyuki Hamada4, Supakij Suttiruengwong1,*
Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand
Department of Physics, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
Department of Material and Metallurgical Engineering, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Pathumthani 12110, Thailand
Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto City 606-8585, Japan
*Corresponding author:

Journal of Renewable Materials 2018, 6(6), 573-583. https://doi.org/10.32604/JRM.2018.00129

Abstract

Poor interfacial adhesion between biobased thermoplastics and natural fibers is recognized as a major drawback for biocomposites. To be applicable for the large-scale production, a simple method to handle is of importance. This work presented poly(lactic acid) (PLA) reinforced with short-fiber and three reactive agents including anhydride and epoxide groups were selected as compatibilizers. Biocomposites were prepared by one-step melt-mixing methods. The influence of reactive agents on mechanical, dynamic mechanical properties and morphology of PLA biocomposites were investigated. Tensile strength and storage modulus of PLA biocomposites incorporated with epoxide-based reactive agent was increased 13.9% and 37.4% compared to non-compatibilized PLA biocomposite, which was higher than adding anhydride-based reactive agent. SEM micrographs and Molau test exhibited an improvement of interfacial fiber-matrix adhesion in the PLA biocomposites incorporated with epoxide-based reactive agent. FTIR revealed the chemical reaction between the fiber and PLA with the presence of epoxide-based reactive agents.

Keywords

Biocomposite, poly(lactic acid), Reactive agent, in situ compatibilization, interfacial adhesion

Cite This Article

Nanthananon, P., Seadan, M., Pivsa-Art, S., Hamada, H., Suttiruengwong, S. (2018). Reactive Compatibilization of Short-Fiber Reinforced Poly(lactic acid) Biocomposites. Journal of Renewable Materials, 6(6), 573–583.

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This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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