Wardhono, Endarto Yudo and Kanani, Nufus and Alfirano, Alfirano and Rahmayetty, Rahmayetty (2019) Artikel_Development of polylactic acid (PLA) biocomposite films reinforced with bacterial cellulose nanocrystals (BCNC) without any surface modification. Journal of Dispersion Science and Technology, 41 (10). ISSN 0193-2691 (Print) 1532-2351 (Online)

Text 6. Development of polylactic acid PLA bio composite films reinforced .pdf - Published Version Download (1MB)

Abstract

In this work, polylactic acid (PLA) matrix was reinforced with bacterial cellulose nanocrystals (BCNC) to form bio-composite films. The films were produced via two step processes; (1) isolation of BCNC from commercial nata de coco (bacterial cellulose) under catalytic hydrolysis using metal chloride salt (FeCl3.6H2O) assisted by ultrasonic irradiation; (2) fabrication of PLA/BCNC bio-com�posite films by a solvent casting method. The effect of BCNC incorporation into bio-composite by addition at different concentrations (2.5%, 5%, 7.5% and 10% w/w of BCNC) was evaluated on the chemical structure, crystallinity, thermal properties, morphology and mechanical properties with�out any surface modification of reinforcement material previously. The results demonstrated that cellulose nanocrystal from bacterial cellulose can improve the mechanical properties of PLA-based biomaterial film. The developed PLA/BCNC bio-composites films can potentially be used for edible packaging materials.

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