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Journal of Macromolecular Science, Part B
Physics
Volume 52, 2013 - Issue 7
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Original Articles

Flexural Properties of Poly-L-Lactide and Polycaprolactone Shape Memory Composites Filled with Nanometer Calcium Carbonate

Ji-Zhao Liang Research Division of Green Function Materials and Equipment, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, P. R. China
,
De-Rong Duan Research Division of Green Function Materials and Equipment, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, P. R. China
,
Chak-Yin Tang Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, P. R. China
,
Chi-Pong Tsui Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, P. R. China
&
Da-Zhu Chen Department of Polymer Materials and Engineering, Shenzhen University, Shenzhen, P. R. China
Pages 964-972 | Received 03 Jul 2012, Accepted 29 Oct 2012, Published online: 04 Apr 2013
 
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Abstract

The flexural properties of poly-L-lactide (PLLA) and polycaprolactone (PCL) shape memory composites filled with nanometer calcium carbonate (nano-CaCO3) were determined at room temperature. The results showed that with the increase of the nano-CaCO3 weight fraction the flexural moduli and strength of PCL/nano-CaCO3 composites increased roughly linearly and reached a maximum at the filler content of 2%, while the flexural strength of the composites decreased. The flexural moduli and strength of the composites decreased roughly linearly with increasing PLLA/PCL ratio for the PLLA/PCL/nano-CaCO3 composites.

Acknowledgement

The authors thank the Research Committee of the Hong Kong Polytechnic University (Project code: G-U844) for the support.

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