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International Journal of Chemical Engineering
Volume 2014 (2014), Article ID 842147, 7 pages
Research Article

Preparation and Characterization of Jute Cellulose Crystals-Reinforced Poly(L-lactic acid) Biocomposite for Biomedical Applications

1Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka 1000, Bangladesh
2PP and PDC, Bangladesh Council for Scientific and Industrial Research, Dhaka 1205, Bangladesh

Received 25 August 2013; Revised 23 November 2013; Accepted 29 November 2013; Published 16 February 2014

Academic Editor: Donald L. Feke

Copyright © 2014 Mohammed Mizanur Rahman et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

Crystalline cellulose was extracted from jute by hydrolysis with sulphuric acid and its composites were PLA by extrusion and hot press method. The results of FT-IR showed the formation of hydrogen bonding between the CC and the PLA matrix that is probably responsible for good mechanical properties of the composites. The composite with 15% CC showed antibacterial effect though pure films but had no antimicrobial effect; on the other hand its cytotoxicity in biological medium was found to be medium which might be suitable for its potential biomedical applications.

Thermomechanical analysis (TMA) of the scaffold film was carried out by using a Shimadzu TMA-50 analyzer, Japan. The sample (4mm × 4mm) was cut and placed in an aluminum crucible, and a lid was placed over the sample under a constant load of 100mN and then heated up to 170°C from 20°Cwithaheating rate of 5°Cmin-1 in nitrogen atmosphere. Thermomechanical analysis (TMA) microgram of pure PLA and its composite with 15% cellulose are shown in Figure S1 in the supporting information. Figure S1(a) for PLA showed total contraction and it showed two peaks at 60.7°C and at 157.8°C which indicated the softening point and melting point of PLA, respectively. Figure S1(b) showed two peaks at 52.2°C and 154.1°C which indicate the softening point and melting point, respectively, indicating that CC has less effect on softening and melting of the composite.

  1. Supplementary Figures