Premium
Antimicrobial, mechanical, barrier, and thermal properties of bio‐based poly (butylene adipate‐ co ‐terephthalate) ( PBAT )/ Ag 2 O nanocomposite films for packaging application
Author(s) -
Venkatesan Raja,
Rajeswari Natesan,
Tamilselvi Alagumuthu
Publication year - 2018
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4089
Subject(s) - nanocomposite , materials science , adipate , thermal stability , ultimate tensile strength , oxygen permeability , composite number , polyester , composite material , antimicrobial , chemical engineering , oxygen , organic chemistry , chemistry , engineering
Bio‐based nanocomposites of poly (butylene adipate‐ co ‐terephthalate) (PBAT)/silver oxide (Ag 2 O) were prepared by the composite film casting method using chloroform as the solvent. The prepared Ag 2 O at different ratios (1, 3, 5, 7, and 10 wt%) is incorporated in the PBAT. The PBAT nanocomposite films were subjected to structural, thermal, mechanical, barrier, and antimicrobial properties. The electron micrographs indicated uniform distribution of Ag 2 O in the PBAT matrix. However, the images indicated agglomeration of Ag 2 O particles at 10 wt% loading. The thermal stability of the nanocomposite films increased with Ag 2 O content. The tensile strength and elongation of the composite films were found to be higher than those of PBAT and increased with Ag 2 O content up to 7 wt%. The PBAT‐based nanocomposite films showed the lower oxygen and water vapor permeability when compared to the PBAT film. Antimicrobial studies were performed against two food pathogenic bacteria, namely, Klebsiella pneumonia and Staphylococcus aureus .