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首页> 外文会议>Theory and practice of energetic materials.;vol. 9. >Phase Diagrams of Energetic Binary Mixtures of Ethylnitramine with 2,4-dinitro-2,4-diazahexane and 3,5-dinitro-3,5-diazaheptane
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Phase Diagrams of Energetic Binary Mixtures of Ethylnitramine with 2,4-dinitro-2,4-diazahexane and 3,5-dinitro-3,5-diazaheptane

机译：乙基硝胺与2,4-二硝基-2,4-二氮杂己烷和3,5-二硝基-3,5-二氮杂庚烷的高能二元混合物的相图

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摘要

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 Gray's model and the fractional transformation method.
机译：DNDA-57增塑剂是三种甲基endendramine的混合物，包括2,4-二硝基-2,4-二氮杂戊烷（或DNDA-5），2,4-二硝基-2,4-二氮杂己烷（或DNDA-6）和3,5 -二硝基-3，5-二氮杂庚烷（或DNDA-7）。通常，用于合成DNDA-57增塑剂的所有方法均由甲基和乙基亚硝胺与甲醛在酸性介质和低温下的缩合反应组成。由于在反应器和粗产物中存在DNDA-6和DNDA-7乙腈与DNDA-6和DNDA-7的二元混合物，因此上述二元混合物的固液平衡（SLE）数据在这些产品的工业生产中很重要。乙硝胺（1）+ 2,4-二硝基2,4-重氮己烷（2）（共晶温度TE = 278.3 K，共晶组成x1 = 0.612）和乙硝胺（1）+ 3,5-二硝基-的两种混合物的二元相图使用差示扫描量热法（DSC）研究了3，5-二氮杂庚烷（2）（低共熔温度TE ＝ 280.3K，低共熔组成x1 ＝ 0.720）。对于每两个系统，观察到简单的共晶行为。共晶组成也使用格雷模型和分数变换方法确定。

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