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Thermal analysis of kenaf derived cellulose-filled poly(lactic acid) composite films


Abd Rahman, Siti Hajar and A. Talib, Rosnita and Abdan, Khalina and Chin, Nyuk Ling and Yusof, Yus Aniza and Tee, Yee Bond (2012) Thermal analysis of kenaf derived cellulose-filled poly(lactic acid) composite films. In: International Conference on Agricultural and Food Engineering for Life (Cafei2012), 26-28 Nov. 2012, Palm Garden Hotel, Putrajaya. (pp. 635-642).


Thermal analysis of KDC-filled PLA composite films were carried out using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and X-ray diffraction. The composites composed of KDC loading ranging from 0 to 60 % (based on dry weight of PLA) were prepared via melt blending which followed by hot and pressing procedure to produce films with thickness of 0.30 mm (±0.05mm). From TGA, incorporating higher loading of KDC in the composites reduced the degradation temperature in comparison to neat PLA, indicating less thermal stable composites. From DSC, with the exception of the slight increment in melting temperature (Tm), other thermal properties namely glass transition temperature (Tg), and crystallization temperature (Tc), remain unaffected by the presence of increasing KDC loading in PLA matrix. The percentage of crystallinity (%Xc) do not show a clear trend with increasing KDC loading in PLA composites. In conclusion, with just a slight increment of approximately 6 °C in Tm, KDC-PLA composites can be processed without changing the novel operating temperature of processing PLA. It is also worth noting that the ability of KDC-PLA composites to degrade at lower temperatures in comparison to PLA is considerably vital during thermal decomposition.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Agriculture
Publisher: Faculty of Engineering, Universiti Putra Malaysia
Keywords: Polylactic acid; Kenaf; Cellulose; Composite; Thermal analysis
Depositing User: Nabilah Mustapa
Date Deposited: 02 Mar 2017 06:20
Last Modified: 02 Mar 2017 06:20
URI: http://psasir.upm.edu.my/id/eprint/50708
Statistic Details: View Download Statistic

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