甲基丙烯酸全氟烷基代乙酯对天然橡胶乳液辐射改性研究  

MODIFICATION OF NATURAL RUBBER LATEX BY RADIATION GRAFTING WITH PERFLUOROALKYLETHYL METHACRYLATE

作　　者：李俊[1] 耿洪斌[1] 陈庆民[1] 

机构地区：[1]南京大学化学化工学院高分子科学与工程系配位化学重点实验室,南京210093

出　　处：《高分子学报》2006年第6期838-840,共3页Acta Polymerica Sinica

摘　　要：A modification of natural rubber latex（NRL） grafted with perfluoroalkylethyl methacrylate（Zonyl TM） under sensitizer butyl acrylate（BA） by（）60Co gamma ray emulsion copolymerization was presented in this paper.The components of the NRL films were studied by Fourier-transfer infrared（FT-IR） spectrometry.The contact angle（CA） analysis showed that the NRL films exhibited a high water contact angle after modification,which changed of 81.1 degree to 110 degree.The surface analysis of X-ray photoelectron spectroscopy（XPS） revealed that the fluorinated segments were preferentially self-organized at the film-air surface.Furthermore,the effect of the Zonyl TM and BA contents on the properties of NRL films was discussed by CA in detail.It showed that the NRL films with 0.94 wt% Zonyl TM and 2.77 wt% or 4.55 wt% BA had better modification effect than the others.A modification of natural rubber latex （NRL） grafted with perfluoroalkylethyl methacrylate（Zonyl TM） under sensitizer butyl acrylate （BA） by 60 Co gamma ray emulsion copolymerization was presented in this paper. The components of the NRL films were studied by Fourier-transfer infrared （FT-IR） spectrometry. The contact angle （CA） analysis showed that the NRL films exhibited a high water contact angle after modification, which changed of 81.1 degree to 110 degree. The surface analysis of X-ray photoelectron spectroscopy （XPS） revealed that the fluorinated segments were preferentially self-organized at the film-air surface. Furthermore, the effect of the Zonyl TM and BA contents on the properties of NRL films was discussed by CA in detail. It showed that the NRL films with 0.94 wt% Zonyl TM and 2.77 wt% or 4.55 wt% BA had better modification effect than the others.

关 键 词：天然橡胶乳液 甲基丙烯酸全氟烷基乙酯 辐射改性 表征 接触角 

分 类 号：TQ331.2[化学工程—橡胶工业]