Biodegradable poly(propylene) carbonate using in-situ generated CuNPs coated Tamarindus indica filler for biomedical applications


Devi M. P. I. , Nallamuthu N., Rajini N., Kumar T. S. M. , Siengchin S., Rajulu A. V. , ...More

MATERIALS TODAY COMMUNICATIONS, vol.19, pp.106-113, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19
  • Publication Date: 2019
  • Doi Number: 10.1016/j.mtcomm.2019.01.007
  • Title of Journal : MATERIALS TODAY COMMUNICATIONS
  • Page Numbers: pp.106-113
  • Keywords: Bio-degradable nanocomposites, Copper nanoparticles, Thermal stability, Tensile strength, Antibacterial activity, MECHANICAL-PROPERTIES, NANOPARTICLES, CELLULOSE, FILMS, COMPOSITES, NANOCLAY, POWDER

Abstract

The aim of this study was to develop the eco-friendly nanocomposite films using poly(propylene) carbonate (PPC) as matrix and copper nanoparticles (CuNPs) modified tamarind nut powder (TNP) as a new reinforcement. Initially, PPC/10 wt.% TNP composites were fabricated using simple casting technique. Consequently, copper nanoparticles (CuNPs) were in-situ generated in the PPC/TNP composite films using different concentrations of copper sulfate source solutions varying from 1 mM to 250 mM at room temperature. The bio-hybrid nanocomposites were characterised for their morphological, structural, thermal, tensile and antibacterial properties. The properties of the hybrid nanocomposites were so encouraging that, with the inclusion of CuNPs, the crystallinity, thermal stability and the tensile properties were enhanced. The composites also demonstrated excellent antibacterial activity against Escherichia coll. (E. coli), Pseudomonas aeruginosa (P. aeruginosa), Bacillus licheniforrnis (B. licheniforrnis) and Staphylococcus aureus (S. aureus) bacterium. Based on the improved properties of the biohybrid nanocomposites, they can be considered for biomedical and food packaging applications.