1,1'-二羟基-5,5'-联四唑二羟胺盐和CMDB推进剂组分的相互作用研究

Interaction of dihydroxylammonium 5,5'-bistetrazole-1,1'-diolate with CMDB propellant components

采用DSC实验、推进剂固化实验和真空安定性实验等多种手段,研究了1,1'-二羟基-5,5'-联四唑二羟胺盐(HATO)和CMDB推进剂组分的相互作用。DSC分析结果表明,HATO和硝化纤维素(NC)、硝化甘油(NG)、吉纳(DINA)、黑索金(RDX)、奥克托金(HMX)和炭黑(CB)之间存在强烈的相互作用,以及3-硝基-1,2,4-三唑-5-酮铅(NTO-Pb)、铝(Al)之间则无明显的相互作用。70℃条件下制备出含HATO的CMDB推进剂,DSC分析表明,受硝酸酯的作用,HATO使得CMDB推进剂的热分解峰温提前,但在155℃以下,含HATO的CMDB推进剂无明显热分解过程。真空安定性试验结果表明,100℃条件下持续加热48 h,HATO的放气量为0.30 ml/g,含HATO的CMDB推进剂的放气量为0.39 ml/g。

The interaction of dihydroxylammonium 5,5＇-bistetrazole- 1,1 ＇-diolate （ HATO ） with CMDB propellant components were studied by using DSC method,curing experiment of propellant slurry and vacuum stability test.The DSC results show that there are strong interaction between HATO with nitrocellulose （ NC ）, nitroglycerine （ NG）, N-nitrodihydroxyethylaminedinitrate （ DINA ）, cyclotrimethylene-trinitramine （ RDX）, cyclotetramethylenete-tranitramine （ HMX）, and carbon black （ CB ）, and no obvious interac- tion between HATO with lead salt of 3-nitro-1,2,4-triazole-5-one（NTO-Pb） and aluminum powder（Al） .The CMDB propellant con- taining HATO was prepared by curing experiment at 70℃, and analyzed by DSC method.h was found that HATO could decrease the decomposition temperature of CMDB propellant for the interaction between HATO and nitrate ester components.Furthermore, after heating at 100 ℃ for 48 h,the volume of gas products for HATO and CMDB propellant containing HATO were determined by the vacuum stability tests to be 0.30 ml/g and 0.39 ml/g respectively.