To enhance the ultraviolet resistance of ZnO based polymer materials, ZnO-supported mesoporous zeolite(M-ZnO) was prepared and characterized by atomic absorption spectroscopy and scanning electron microscopy. The ultraviolet resistance, crystallization behavior and melting characteristics of ZnO and M-ZnO filled PPR composites were compared by FTIR spectra and differential scanning calorimetry. The ultraviolet resistance of M-ZnO filled PPR composites is higher than that of ZnO filled PPR composites, indicating higher ultraviolet resistance of M-ZnO than that of ZnO. The crystallization temperatures of mesoporous zeolite filled PPR were higher than those of M-ZnO and decreased with increasing UV-irradiation time. But the crystallization temperatures of M-ZnO filled PPR composites were not influenced by UV-irradiation time. The ZnO supported on the surface of zeolite is effective in enhancing the ultraviolet resistance of ZnO based polymer materials.
ZnO is a multifunctional material with UV-blocking,antimicrobial,photo-catalytic activity and selfcleaning properties.The application of ZnO has become an interesting subject both in science and industries in the polymer materials.A great number of investigation indicated that introduction of ZnO can improve ultraviolet resistance and endow antimicrobial properties of polypropylene(PP) materials to broaden the application range and prolong the usage life of polypropylene materials.This mini-review contains examples of recent research advances on ultraviolet resistance and antimicrobial properties of ZnO in the filled polypropylene materials.It is found that ultraviolet resistance and antimicrobial properties of ZnO supported on the surface of other inorganic particles are higher than those of nanoand micro-ZnO particles,which may inspire further developments of filled PP and its copolymer materials with high ultraviolet resistance and antimicrobial properties.
Mei LiGu LiJuan JiangZishou ZhangXin DaiKancheng Mai
