摘要
氟树脂 F2 314在真空、空气、氮气三种气氛中经γ射线辐照后发生了降解反应 ,产生的气体及其水溶液经 GC- MS、离子选择性电极分析 ,发现生成的 HF、HCl的量随剂量的增大而增大。真空和氮气气氛中有 H2 产生 ,H2 的量随剂量的变化不明显 ,空气气氛中未检测出 H2 。空气气氛中产生的 CO2 的量随剂量的增大而增大 ,真空和氮气气氛中未检出 CO2 。辐照后的样品经 IR分析发现有 - CF= CH-、- CF=CF-基团 ,空气气氛中还产生了
Fluororesin F2314 was irradiated with gamma rays in vacuum, air and nitrogen res pectively, and radiation degradation took place during this process. The gaseous products of F2314 radiolysis including H 2?CO 2?HF and HCl were determinded by GC-MS directly, or by Ion selected electrode (ISE) in solution. The content of HF and HCl increased with dose in each condition, the same trend of CO 2 of irradiation in air was investigated, and there was no CO 2 in nitrogen and vac uum. The content of H 2 hardly had any changes with dose, although it was detec ted when irradiated in vacuum and nitrogen but not in air. Beside the =C=O group formed by radiolysis in air, -CF=CH- and -CF=CF- groups were also identified fo r all specimens after radiolysis with IR.
出处
《火炸药学报》
CAS
CSCD
2001年第4期28-30,共3页
Chinese Journal of Explosives & Propellants
基金
中国工程物理研究院基金重点项目 (1999Z0 5 0 3)
