二茂铁四氮唑金属盐的制备及其对固体推进剂主组分热分解的燃烧催化性能  

Preparation of metal salts of 5-ferrocenyl-1H-tetrazole and their combustion catalytic activities in thermal decomposition of main components of solid propellants

作　　者：吴亚丽[1] 邵二莎 李吉祯[2] 张国防[2] 

机构地区：[1]集宁师范学院化学系,内蒙古乌兰察布012000 [2]应用表面与胶体化学教育部重点实验室陕西师范大学化学化工学院,陕西西安710119

出　　处：《陕西师范大学学报（自然科学版）》2017年第6期56-60,共5页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金(21171112;21401124);内蒙古自治区高等学校科学研究项目(NJZY17364)

摘　　要：为解决商品化的中性二茂铁燃速催化剂存在的易迁移易挥发问题,以二茂铁四氮唑钠和水溶性金属盐为原料,制备了8种二茂铁四氮唑的金属盐(包括Fe(Ⅲ)、Co(Ⅱ)、Ni(Ⅱ)、Cu(Ⅱ)、Zn(Ⅱ)、Ag(Ⅰ)、Pb(Ⅱ)、Bi(Ⅲ)的金属盐)。用FT-IR、UV-Vis和元素分析等手段进行结构表征,用TG-技术研究了热稳定性,发现所有金属盐均在200℃以上分解,表明它们均具有良好的热稳定性。用循环伏安(CV)法研究了这些金属盐的电化学性质,发现它们大多数是不可逆氧化还原体系。用DSC技术评价了它们对固体推进剂主组分AP、RDX和HMX热分解的燃烧催化作用,发现这些二茂铁四氮唑金属盐均能使AP热分解温度更加集中,分解速度加快;部分金属盐可提高RDX的放热量,并降低RDX的分解峰温,但这些金属盐对HMX的热分解过程作用甚微。因此,这些二茂铁四氮唑金属盐对AP和RDX的热分解具有良好的燃烧催化作用。To solve the high migration tendency and volatility problems of commercialized neutral ferrocene-based burning rate catalysts,eight metal salts of ferrocenyl-1 H-tetrazole,including Fe（Ⅲ）,Co（Ⅱ）,Ni（Ⅱ）,Cu（Ⅱ）,Zn（Ⅱ）,Ag（Ⅰ）,Pb（Ⅱ）and Bi（Ⅲ）salts,were prepared with sodium ferrocenyl-1 H-tetrazolate and corresponding common soluble metal salts as raw materials.The new salts were characterized by FT-IR,UV-Vis spectroscopy and elemental analysis.Their thermal stability was determined by TG technique and found that these salts showed good thermal stability（ 200 ℃）.Their electrochemical behavior were investigated using cyclic voltammetry and the results suggested that most of them exhibit redox waves for the ferrocenyl groups and are considered as irreversible redox systems.Their catalytic effects on the thermal degradation of main components in solid propellants,AP,RDX and HMX,were evaluated by DSC.All the newsalts can narrow the decomposition temperature span and increase the degradation rate of AP.Some of the salts enhance the heat released by RDX and shift downwards the peak temperature of RDX.However,none of the salts exert significant effect on the thermal decomposition of HMX.Therefore,the ferrocenyl-1 H-tetrazole derived salts display good combustion catalytic properties for thermal disintegration of both AP and RDX.

关 键 词：二茂铁四氮唑 金属配合物 热稳定性 燃烧催化性能 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TQ564[化学工程—炸药化工]