火炸药学报2020，Vol.43Issue(4)：392-398,7.DOI:10.14077/j.issn.1007-7812.201901035
5,5′-偶氮四唑钾对硝酸铵晶体相变和热分解性能的影响
Effect of Potassium 5 ,5′-Azotetrazolate on Phase Transformation and Thermal Decomposition of Ammonium Nitrate
摘要
Abstract
Potassium 5 ,5′-azotetrazolate (raw PZT) was synthesized using 5-amino-1H-tetrazol (5-ATZ) as the precursor .By dissolving raw PZT and ammonium nitrate (AN) in water ,evaporating the water off ,and then"AN+PZT" composites were prepared .IR and XRD analyses were employed to characterize raw PZT and "AN+PZT" composites .Thermal analyses were performed to probe the effect of raw PZT on phase transition and thermolysis of AN .The molecular structure of raw PZT was confirmed by IR spectrum ,and results demonstrate that raw PZT is a kind of hydrate .XRD patterns of "AN+PZT"composites reveal that some eutectics generate during the preparation .DSC curves of "AN+ PZT" composites disclose that the phase transformation of AN at ambient temperature is entirely inhibited by doping with raw PZT .Peak temperature for decomposition of AN also decrease obviously by doping with raw PZT .The final decomposition products of "0 .8AN+0 .2PZT"composite are N2 O ,HNO3 and H2 O .By compared"0 .8AN+0 .2PZT"composite with pure AN ,it is found that HNO3 disappear ,while NH3 is detected as an intermediate product .It may be because that PZT react with HNO3 firstly after decomposition of AN ,and NH3 is oxided by HNO3 at a higher temperature .This promotes thermal decomposition of AN in mechanism since the consump-tion of HNO3 dominates its thermolysis .关键词
物理化学/硝酸铵/AN/PZT/相变/热分解机理Key words
physical chemistry/ammonium nitrate/AN/PZT/phase transition/thermal decomposition mechanism分类
军事科技引用本文复制引用
王毅,宋小兰,李凤生..5,5′-偶氮四唑钾对硝酸铵晶体相变和热分解性能的影响[J].火炸药学报,2020,43(4):392-398,7.基金项目
Weapons and Equipments Pre-research Fund (No .6140656020201) （No .6140656020201）
