Study on preparation and packaging property of PE antibacterial film coated PVA nano-material

The nano-Zn O was modified by KH570 and nano-Ti O2 was modified by NDZ-101,using FT-IR and TEM characterize of the modified powder'surface structure and property changes. Prepare the PVA sol to make PVA nano-Zn O /PE and PVA nano-Ti O2/ PE films by coating method. Research and analysis the film's mechanical,barrier and antibacterial properties by using electronic universal testing machine,oxygen permeability tester,water vapor permeability tester and foil method. Results showed that the PVA nano-Zn O / PE and PVA nano-Ti O2/ PE films can get good mechanical and barrier properties when content of the nano-powder was around 1%. The antibacterial rate of PVA nano-Zn O / PE film was over 90% under the different conditions that protected from light,natural light and UV light,and antibacterial rate of PVA nano-Ti O2/ PE films was over 97% under natural light and UV light.