Water Vapour Permeability of Poly(lactic acid)/Chitosan Binary and Ternary Blends

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Published: Feb 7, 2014
Keywords:
Poly(lactic acid) Chitosan Polymer blends Compatibility Water vapour permeability

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Pei Shan Teo
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300 Penang
Wen Shyang Chow
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300 Penang

Abstract

In this study, poly(lactic acid) (PLA) containing chitosan and poly(vinyl alcohol) (PVOH) was prepared using melt mixing followed by compression molding. Effects of chitosan and PVOH on the water vapour permeability of the PLA were evaluated. The water vapour permeability (WVP) and water vapour transmission rate (WVTR) of PLA/chitosan blends are higher than the pure PLA, which attributed to the hydrophilicity of chitosan. Incorporation of PVOH improved compatibility and interfacial bonding of PLA/chitosan blends. It was found that the WVP and WVTR of the PLA/chitosan/PVOH ternary blends are lower than that of the PLA/chitosan binary blends.

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How to Cite
Teo, P. S., & Chow, W. S. (2014). Water Vapour Permeability of Poly(lactic acid)/Chitosan Binary and Ternary Blends. Applied Science and Engineering Progress, 7(1), 23–27. Retrieved from https://ph02.tci-thaijo.org/index.php/ijast/article/view/67427
Issue
Vol. 7 No. 1 (2014)
Section
Research Articles