Abstract:To elucidate the effects of clove essential oil or acid-etch halloysite nanotubes/clove oil (HNTs-4M-clove) on the properties of poly-butylene adipate-co-terephthalate/poly-propylene carbonate (PBAT/PPC) composite films, HNTs-4M-clove was obtained by mixing the acid-etched HNTs with clove essential oil. With the addition of clove essential oil or HNTs-4M-clove, the color of the films became yellow-green, and their transparency and gas barrier properties decreased, while the films exhibited good antibacterial activity against Escherichia coli, Staphylococcus aureus and Sivarella putrefaciens. The film containing HNTs-4M-clove demonstrated higher tensile strength and gas barrier properties compared to the film with clove essential oil. Additionally, HNTs promoted the dispersion of clove essential oil in the film and slowed down its release rate. Therefore, HNTs-4M-clove gave the PBAT/PPC film a good antibacterial activity with a retarded release rate of clove essential oil, which provided a reference for the development of biodegradable slowed-release active packaging film.
