Thermal characterization of the composites based on poly(lactic acid)

Srebrenkoska, Vineta and Bogoeva-Gaceva, Gordana (2011) Thermal characterization of the composites based on poly(lactic acid). Conference Proceedings, XIII YUCORR International Conference. ISSN 978-86-82343-14-1

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In this study, rice-hulls-filled poly (lactic acid) (PLA) composites were prepared through addition of 5 wt. % PLA-grafted-MA (CA) for enhancement of adhesion between polymer matrix and natural filler. The composites containing 30% wt. rice hulls (RH) were prepared by compression molding. For the composites, the thermal properties were analyzed and compared to those of commonly used thermoplastic based-polymer, polypropylene (PP) containing the same reinforcement. Thermal stability of composites based on PLA matrix is slightly lower as compared to the PP ones. Introduction of CA improved the thermal stability of PLA based composites, as a result of enhanced interfacial adhesion. SEM analyses show that in all composites the interaction between matrix and RH are very good, resulting in high interfacial adhesion. The PLA matrice is effective material for production of the natural fiber composites with high thermal stability properties. The obtained results have shown that rice-hull-filled poly(lactic acid) composites could be utilized for production of new eco-materials with acceptable thermal properties and they can be successfully used for production of eco-composites. Moreover, the PP-based composites and PLA- based composites are appropriate for processing by compression molding and both composites are suitable for applications as construction materials.

Item Type: Article
Subjects: Engineering and Technology > Materials engineering
Divisions: Faculty of Technology
Depositing User: Vineta Srebrenkoska
Date Deposited: 30 Nov 2012 14:52
Last Modified: 02 Oct 2013 12:27

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