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

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...

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Bibliographic Details
Published inKey engineering materials Vol. 772; pp. 100 - 104
Main Authors Kamlong, Nareerat, Mongkholrattanasit, Rattanaphol, Thiangtrong, Nicha, Jamnongkan, Tongsai
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.07.2018
Subjects
Polylactic acid
Zinc oxide
Nanomaterials
ZnO Nanoparticles
Poly(Lactic Acid)
Antimicrobial Property
Composite
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Summary: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.
Bibliography:Selected, peer reviewed papers from the 2018 International Conference on Composite Materials Science and Technology (ICCMST 2018), April 6-8, 2018, Bangkok, Thailand
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.772.100