1,1-二氨基-2,2-二硝基乙烯晶型转变动力学研究  

Study on phasetransition kinetics of 1,1-diamino-2,2-dinitroethylene

作　　者：周建华[1] 于谦[1] 蒋跃强[1] 艾进[1] ZHOU Jian-hua;YU Qian;JIANG Yue-qiang;AI Jin(Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621900,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621999

出　　处：《化学研究与应用》2018年第7期1145-1147,共3页Chemical Research and Application

基　　金：国家自然科学基金项目(11372290)资助

摘　　要：采用差示扫描量热实验方法表征了FOX-7晶体升降温度过程中的相转变行为,并应用Ozawa法和Kissinger法计算了FOX-7炸药α→β、β→α的相变能垒。实验结果表明,热作用下FOX-7炸药α相与β相间的转变是循环可逆的,且α→β相转变的能垒大于β→α的能垒,这为FOX-7炸药加工温度控制和工程应用提供了实验依据。经循环后α→β的转变温度略有降低,而β→α的转变温度略有提高。The thermal phase transitions of 1,1-diamino-2,2-dinitroethylene（ FOX-7） were investigated by using DSC technology.The energy barrier of phase transformation（ α→β and β→α） of FOX-7 was calculated through Ozawa method and Kissinger method.It was found that the phase transformation between α-and β-FOX-7 is reversible under heating and cooling,and the energy barrier of phase transformation from α-to β-FOX-7 is higher than that fromβ-to α-FOX-7. This experimental result plays an important role in the control of machining temperature and the engineering application of FOX-7 explosive.After cycling the phase transformation temperature from α-to β-FOX-7 became slightly lower,while the phase transformation temperature from β-to α-FOX-7 became a little higher.

关 键 词：1 1-二氨基-2 2-二硝基乙烯 能垒 相转变温度 

分 类 号：O643.221[理学—物理化学]