Preparation and Characterization of Polymer Composite Materials Based on PLA/TiO₂ for Antibacterial Packaging.

ABSTRACT: Polymer composite materials based on polylactic acid (PLA) filled with titanium dioxide (TiO₂) nanoparticles were prepared. The aim of this work was to investigate the antibacterial action of TiO₂ against a strain of E. coli (DH5α) to obtain information on their potential uses in food and agro-alimentary industry. PLA/TiO₂ systems were prepared by a two-step process: Solvent casting followed by a hot-pressing step. Characterization was done as a function of particle size (21 nm and <100 nm) and particle content (0%, 1%, 5%, 10%, and 20%, wt %). Structural characterization carried out by X-ray diffraction (XRD) and Fourier Transformed Infrared spectroscopy (FTIR) did not reveal significant changes in polymer structure due to the presence of TiO₂ nanoparticles. Thermal characterization indic

SUBMITTER: Segura Gonzalez EA 

PROVIDER: S-EPMC6401929 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature