Comparison the Physical and Antimicrobial Properties of Poly(Lactic Acid) Film and its Composites with ZnO Nanoparticles

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Polylactic acid (PLA) is a bioplastic, which is produced from natural materials. It is well known that the PLA can be degraded in the environment which is alternatively rendered to replace the plastic from a petroleum base. In this paper, we study the physical properties of composite films prepared from PLA composited with zinc oxide nanoparticles (ZnO NPs) by using solvent casting technique. It was found that the ZnO NPs have affected to the morphological, water absorbency, mechanical and antibacterial properties of biocomposite films. In addition, we also found that the particles of ZnO NPs can disperse within the PLA matrices, which enhanced the stress and Young’s modulus of biocomposite films. Additionally, the result shown that the PLA/ZnO NPs films exhibit good antibacterial activity both in Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacterial strains.

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Edited by:

Takashi Amemiya, Xuelin Lei and Xiong Qi Peng

Pages:

100-104

Citation:

T. Jamnongkan et al., "Comparison the Physical and Antimicrobial Properties of Poly(Lactic Acid) Film and its Composites with ZnO Nanoparticles", Key Engineering Materials, Vol. 772, pp. 100-104, 2018

Online since:

July 2018

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