Behavior of polylactide/microcrystalline cellulose biocomposites: effects of filler content and interfacial compatibilization

Date

2016-02-01

Author

DOĞU, Berk
Kaynak, Cevdet

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The purpose of this study was to investigate the effects of microcrystalline cellulose (MCC) content on the properties of polylactide (PLA) biocomposites; including the influences of maleic anhydride (MA) grafted PLA copolymer compatibilization. PLA/MCC biocomposites were produced by industrially compatible production techniques, i.e. twin-screw extrusion melt-mixing for compounding and injection molding for shaping of bulk specimens. SEM analysis and mechanical tests indicated that use of 3 wt% MCC resulted in very uniform distribution and consequently improved properties especially in terms of ductility and toughness. For instance, compared to neat PLA, the increases in the values of % strain at break and fracture toughness were 78 and 31 %, respectively. After MA compatibilization, these increases became as much as 82 and 55 %, respectively. Moreover, DSC and TGA indicated that use of MCC resulted in no significant changes in the transition temperatures and thermal degradation temperatures of PLA.

Subject Keywords

Polymers and Plastics

URI

https://hdl.handle.net/11511/48526

Journal

CELLULOSE

DOI

https://doi.org/10.1007/s10570-015-0839-0

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

B. DOĞU and C. Kaynak, “Behavior of polylactide/microcrystalline cellulose biocomposites: effects of filler content and interfacial compatibilization,” CELLULOSE, pp. 611–622, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48526.