Radiation effect of Apocynum fiber

Radiation effect of Apocynum fiber 1 corresp first-author Corresponding author. Email: zhaoxin@xju.edu.cn Corresponding author. Email: zhaoxin@xju.edu.cn zhaoxin@xju.edu.cn 1 1 1 1 1 The Center of Analysis and Measurement of Xinjiang University, Urumqi 830046, China The Center of Analysis and Measurement of Xinjiang University, Urumqi 830046, China Changes of surface shape, aggregate state, and microstructure of Apocynum fiber before and after irradiation were studied by XRD, IR, SEM, ESR, and solid state 13 C CP/ MAS NMR. The results show that the surface shape and microstructure were not spoiled under 50kGy gamma irradiation, while the crystallization of Apocynum fiber changed under 280kGy . It also shows that different free radicals appear after irradiation and their concentration increases with the increase of irradiation dose. XRD IR SEM ESR CP/ MAS Hydrogen bond Free radical References Zhang Yi , Guo Binchen , Cao Yake et al . Journal of Textile Research (in Chinese) , 1995 , 16 ( 2 ): 80 - 82 Journal of Textile Research (in Chinese) Chen Bowen , Guo Binchen , Meng Qingju et al . Journal of Tianjin Institute of Textile Science and Technology (in Chinese) , 2000 , 19 ( 4 ): 8 - 11 Journal of Tianjin Institute of Textile Science and Technology (in Chinese) Hassanpour S . Radiation Physics and Chemistry , 1999 , 55 : 41 - 45 Radiation Physics and Chemistry Borsa J , Tóth T , Takács E , Radiation Physics and Chemistry , 2003 , 67 : 509 - 512 Radiation Physics and Chemistry Guan Jintai . The theory and application of macromolecule chemistry (in Chinese) , Beijing : Petrochemical Press of China , 1995 , 239 - 240 The theory and application of macromolecule chemistry (in Chinese) Chang Dehua , Gong Ningrui , Liu Jihua , et al . Journal of Beijing Institute of Technology (in Chinese) 1997 , 17 ( 5 ): 579 - 583 Journal of Beijing Institute of Technology (in Chinese) Atalla R H , VanderHart D L . Solid State Magnetic Resonance , 1999 , 15 : 1 - 19 Solid State Magnetic Resonance Larsson P T , Hult E-L , Wickholm K , et al . Solid State Magnetic Resonance , 1999 , 15 : 31 - 40 Solid State Magnetic Resonance 10.1016/S1001-8042(06)60009-2 O63 Supported by National National Science Foundation (20464002) 2005-04-01 2006-02-20 2021-01-19 2006 Nuclear Science and Techniques 01 17