摘要
以富氮羧酸类分子2,2'-(3,3'-偶氮-双(1H-1,2,4-三唑-5基))二乙酸(H2DTDA)与氢氧化锶八水合物为原料,在水热条件下制备了一种金属有机框架(MOF)结构的新型红色烟火着色剂[Sr2(DTDA)(H2O)6]n(1);采用傅里叶变换红外光谱(FT-IR)、X射线单晶衍射(XRD)、粉末X射线单晶衍射(PXRD)和元素分析等对化合物结构进行了表征;采用热重法(TG)-差示扫描量热法(DSC)、BAM标准法测试了化合物1的热性能和感度性能;设计了烟火剂配方,对化合物1应用于红色烟火着色剂的可行性进行分析。结果表明,化合物1是一种具有二维空间结构的MOF材料,其层状结构之间存在丰富的氢键作用;放大合成的水热实验同样可以得到高纯度的化合物1;撞击感度为80 J,摩擦感度> 360 N;化合物1可作为红色着色剂应用于烟火剂配方中。
A novel red pyrotechnics colorant MOF[Sr2(DTDA)(H2O)6]n(1)was synthesized from one high-nitrogen content ligand with carboxylic acid,2,2’-(3,3’-azo-bis(1 H-1,2,4-triazol-5-yl))diacetic acid(H2DTDA)and strontium hydroxide octahydrate under hydrothermal condition.The structure of compound 1 was characterized by Fourier transform infrared(FT-IR),single crystal X-ray diffraction(XRD),powder X-ray diffraction(PXRD)and elemental analysis.Its thermal decomposition temperatures were measured by thermogravimetry(TG)and differential scanning calorimetry(DSC),and the sensitivities were tested by BAM standard methods.A pyrotechnic formulation was designed,and the feasibility of applying compound 1 to a red pyrotechnic colorant was analyzed.It is showed that the structure of compound 1 is two-dimensional(2D)structure and there are hydrogen bonds between layers.Compound 1 can also be obtained by a large-scale hydrothermal experiment.The low impact sensitivity(IS=80 J)and friction sensitivity(FS>360 N)indicate that compound 1 is an insensitive energetic material and can be used as a red colorant in pyrotechnic formulation.
作者
周金阳
何浏
王霆威
朱顺官
张祺
ZHOU Jin-yang;HE Liu;WANG Ting-wei;ZHU Shun-guan;ZHANG Qi(Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621999,China;Southwest University of Science and Technology,Mianyang 621010,China;School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2020年第7期618-624,I0005,共8页
Chinese Journal of Energetic Materials
基金
国家自然科学基金面上项目(21975232)。
