Enhanced Ultraviolet Resistance of Polypropylene Random Copolymer Filled by ZnO-supported Mesoporous Zeolite  

作　　者：Mei Li Gu Li Zi-shou Zhang Xin Dai Yue-wen Yang 麦堪成 

机构地区：[1]Materials Science Institute, School of Chemistry and Chemical Engineering, Sun Yat-sen University [2]Key Laboratory for Polymeric Composite and Functional Materials,Ministry of Education [3]Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites

出　　处：《Chinese Journal of Polymer Science》2015年第7期976-987,共12页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51173208 and 51373202);the Natural Science Foundation of Guangdong(No.S2011020001212)

摘　　要：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.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.

关 键 词：Polypropylene random copolymer（PPR） ZnO Mesoporous zeolite Photo-oxidation degradation 

分 类 号：O632.12[理学—高分子化学]