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- Title
Antibacterial Nanocomposites of Polypropylene Modified with Silver-Decorated Multiwalled Carbon Nanotubes.
- Authors
Wen, Yi-Hua; De Guzman, Manuel Reyes; Lin, Xu; Chen, Jui-Chin; Gao, Chen; Wu, Chin-San; Wang, Zhao-Hua; Huang, Dan; Du, Juan; Yu, Yong-Qi; Zhao, Wen; Suen, Maw-Cherng; Tsou, Chi-Hui
- Abstract
Polypropylene (PP) has some disadvantages when used in food packaging: PP does not have antibacterial properties, and it exhibits low barrier properties. In this study, nanocomposites of PP filled with different amounts of silver-decorated multiwalled carbon nanotubes (MWCNTs-Ag) were fabricated. A new nanomaterial with silver had the advantage of providing antibacterial capabilities, and the contribution of MWCNTs was to reinforce mechanical properties. PP was melt-blended with MWCNTs-Ag, but the ensuing problem was the poor interfacial interaction of fillers with the polymer matrix, especially at high filler content. Nonetheless, a small quantity of fillers resulted in the following improvement in nanocomposite properties, relative to neat PP: better antibacterial ability, lower water vapor permeation flux, lower oxygen barrier performance, higher thermostability, faster crystallization rate and higher tensile strength. Therefore, nanocomposites formed from modifying PP with a low content of MWCNTs-Ag show promise in the field of packaging and medical material applications. A process of fabricating nanocomposites of polypropylene, modified with new nanomaterial silver-decorated multiwalled carbon nanotubes by melt-blending from mixer, and the mechanism of improving the barrier performance, as demonstrated by the blocked pathways for oxygen or water vapor permeation, were presented.
- Subjects
MULTIWALLED carbon nanotubes; NANOCOMPOSITE materials; WATER vapor transport; POLYPROPYLENE; PACKAGING materials; MELT spinning; CRYSTALLIZATION
- Publication
NANO, 2020, Vol 15, Issue 9, pN.PAG
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S179329202050112X