Study on Rare Earth Oxide Nucleation Modified Antibacterial PP Film

Nucleating agent masterbatch, antibacterial agent masterbateh and antibacterial PP films were prepared by using PP as carrier resin, rare earth oxide as nucleating agent and oleic acid amide modified silver-loaded zirconium phosphate as antibacterial agent. And the performances of the antibacterial PP films were studied. The results showed that the addition of rare earth oxide nucleating agent reduced the spherulite size and average rise to all increment in crystallization temperature of the antibacterial PP films; in the case of adding 0.3% rare earth oxide nucleating agent and 0.8% modified silver-loaded zirconium phosphate, the tensile strength, right angle tearing strength and transmittance of the antibacterial PP film were improved in varying degrees, the haze was reduced obviously, the antibacterial rate to Escherichaia coli and Staphylococcus aureus reached 99.87% and 99.24%, respectively, the anti-bacterial properties and physical and mechanicaI properties were excellent.