Isothermal crystallization behavior of hybrid biocomposite consisting of regenerated cellulose fiber,clay, and poly(lactic acid) |
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| Authors: | Seung‐Hwan Lee Siqun Wang Yoshikuni Teramoto |
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| Affiliation: | 1. Forest Product Center, Forestry, Wildlife and Fisheries, University of Tennessee, Knoxville, Tennessee;2. National Institute of Advanced Industrial Science and Technology (AIST), Biomass Technology Research Center (BTRC), 2‐2‐2, Hiro‐Suehiro, Kure, Hiroshima 737‐0197, Japan |
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| Abstract: | Quantitative analysis of isothermal crystallization kinetics of PLA/clay nanocomposite and PLA/clay/regenerated cellulose fiber (RCF) hybrid composite has been conducted. The crystallization rate constant (k) according to Avrami equation was higher in PLA/clay nanocomposite than in PLA/clay/RCF hybrid composite at the same crystallization temperature. The equilibrium melting temperature obtained by Hoffman–Weeks equation was almost same in both composites, whereas stability parameter was greater in hybrid composite than in nanocomposite. Activation energy of hybrid composite for crystallization was larger than that of nanocomposite. The value of nucleation parameter (Kg) and surface free energy (se) of hybrid composite were larger than nanocomposite, indicating that hybrid composite has a less folding regularity than nanocomposite. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 |
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| Keywords: | crystallization nanocomposite biodegradable cellulose fiber |
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