Nano Science and Technology Institute
Nanotech 2009 Vol. 2
Nanotech 2009 Vol. 2
Nanotechnology 2009: Life Sciences, Medicine, Diagnostics, Bio Materials and Composites
Chapter 9: Nanocomposites

Rheology, Microstructure, and Property of Polylactide/Clay Nanocomposites Prepared with SC-CO2 by Melt Compounding

Authors:G. Jiang, Z.K. Chen, H.X. Huang
Affilation:South China University of Technology, CN
Pages:542 - 545
Keywords:polylactide, clay, rheological behavior, microstructure, mechanical property
Abstract:The rheology, microstructure and mechanical properties of polylactide (PLA)/clay nanocomposites were investigated. The nanocomposites were prepared using a twin screw extruder with and without the aid of supercritical carbon dioxide. Results show that there exists a solid-like behavior in the nanocomposites. TEM results show that the clay is dispersed more homogeneous in the nanocomposites compounded with Sc-CO2. Compared with pure PLA, the elongation at break and tensile strength for nanocomposite compounded with 5 wt% CO2 are improved by 166% and 25%. The impact strength of the nanocomposites exhibits a 32-47% increase.
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