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Thermal properties of injection moulded polylactic acid 13 kenaf fibre biocomposite

Anuar, Hazleen and Ahmad, Zuraida (2011) Thermal properties of injection moulded polylactic acid 13 kenaf fibre biocomposite. Malaysian Polymer Journal, 6 (1). pp. 51-57. ISSN 1823-7789

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Biocomposite made of polylactic acid (PLA) reinforced with natural kenaf bast fibre (KF) using twin screw extruder and injection molding machine has been developed. The effect of kenaf fibre content on crystallization and melting behavior has been studied by means of differential scanning calorimetry (DSC). The amourphous state of PLA was remain unchanged with kenaf fibre content. Although there were increment in melting enthalpy (94Hm) and cold-crystallization enthalpy (94Hcc), but it was not significant to cause kenaf fibre to act as nucleating agent for PLA. The effect of kenaf fibre content on the stiffness of the PLA-KF biocomposite at elevated temperature has been investigated by using dynamic mechanical analyzer (DMA). The storage modulus (E 19) of the composites is higher as compared to unreinforced PLA, whereas the mechanical loss factor (tan d) decreases with kenaf fibre content which can be associated to the compatibility of PLA matrix and kenaf fibre.

Item Type: Article (Journal)
Additional Information: 4130/2305
Uncontrolled Keywords: Thermal properties, differential scanning calorimetry, dynamic mechanical analysis, kenaf fibre, polylactic acid.
Subjects: T Technology > TS Manufactures > TS195 Packaging
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Dr Hazleen Anuar
Date Deposited: 16 Sep 2011 12:14
Last Modified: 28 Jun 2013 10:05
URI: http://irep.iium.edu.my/id/eprint/2305

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