辐照对PETN结构与性能的影响研究  

Effect of Irradiation on Structure and Performance of PETN

作　　者：罗毅坚[1] 陈玲[1] 敖银勇[2] 彭强[1] 艾进[1] 王涛 LUO Yi-jian;CHEN Ling;AO Yin-yong;PENG Qiang;AI Jin;WANG Tao(Institute of Chemical Materials,China Academy of Engineering Physics,Sichuan Mianyang 621900;Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Sichuan Mianyang 621900;Rocket Army Engineering University,Shaanxi Xi'an 710000,China)

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900 [2]中国工程物理研究院核物理与化学研究所,四川绵阳621900 [3]火箭军工程大学,陕西西安710000

出　　处：《广州化工》2020年第24期41-45,共5页GuangZhou Chemical Industry

摘　　要：采用射线对太安进行辐照,基于SEM、XPS及FTIR表征了辐照对PETN结构的影响,利用DSC-TG和压力传感器法考察了辐照对PETN热安定性的影响。结果表明,辐照后的太安在120℃时颜色和形态发生较大变化,放气量剧增,即辐照使太安的热安定性变差。辐照使太安熔化温度由初始的143.8℃提前到140.4℃,分解温度由初始的205.8℃推迟到206.7℃。经辐照后各元素含量明显变化,碳元素含量明显增加,氮元素含量少量上升,氧元素含量逐渐减小,分析认为是发生了去硝基反应。Radiation was used to irradiate PETN.The effect of radiation on the surface structure and chemical structure of PETN was characterized by SEM,XPS and FTIR.The effect of radiation on the thermal stability of PETN was investigated by DSC-TG and pressure sensor method.The results showed that the color and shape of the irradiated PETN changed greatly when the temperature was kept at 120℃,and the outgassing volume also increased sharply.The radiation made the thermal stability of PETN worse.The irradiation advanced the melting temperature of PETN from the initial 143.8℃to 140.4℃,and the decomposition temperature delayed from the initial 205.8℃to 206.7℃.After irradiation,the content of each element changed significantly,the content of carbon element increased significantly,the content of nitrogen element increased slightly,and the content of oxygen element gradually decreased.The analysis believed that a denitration reaction occurred.

关 键 词：太安 射线辐照 热安定性 光电子能谱 红外光谱 

分 类 号：O656.6[理学—分析化学]