Phase Diagrams of Energetic Binary Mixtures of Ethylnitramine with 2,4-dinitro-2,4-diazahexane and 3,5-dinitro-3,5-diazaheptane
DNDA-57 plasticizer is a mixture of three methylendinitramine including 2,4-dinitro-2,4-diazapentane (or DNDA-5), the 2,4-dinitro-2,4diazahexane (or DNDA-6) and the 3,5-dinitro-3,5-diazaheptane (or DNDA-7). In general all methods for synthesis of DNDA-57 plasticizer are consisting of condensation reaction between methyl and ethylnitamine with formaldehyde in acidic medium and low temperatures. Since in production of DNDA-6 and DNDA-7 binary mixtures of ethylnitamine with DNDA-6 and DNDA-7 exist in reactor and crude product, solid-liquid equilibria (SLE) data for abovementioned binary mixture are important in industrial production of these products. Binary phase diagrams for two mixtures of ethylnitramine (1)+2,4-dinitro2,4-diazahexane (2) (eutectic temperature TE=278.3 K, eutectic composition x1=0.612) and ethylnitramine (1)+3,5-dinitro-3,5-diazaheptane (2) (eutectic temperature TE=280.3 K, eutectic composition x1=0.720) were studied using differential scanning calorimetry (DSC). For each two systems simple eutectic behaviors were observed. The eutectic compositions were also determined using Grays model and the fractional transformation method.
HOSSEINDOUST B. FERDOWSI M. NOSRATZADEGAN K.
Instiule for Research and Technology,Tehran,Iran
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
253-259
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）