火炸药学报Issue(5)：37-40,4.DOI:10.14077/j.issn.1007-7812.2015.05.007
2，4-二硝基苯甲醚与 TNT 凝固行为的差异性分析
Analysis on Differences of Solidification Behavior of DNAN and TNT
摘要
Abstract
To understand the characteristics and the causes of 2,4-dinitroanisole(DNAN)solidification defects,the liquid-phase density of DNAN and TNT samples was measured by a cylinder weighing method and the two sample′s volume shrinkages were calculated.The distribution of solidification defect of DNAN and TNT grains was observed by industrial CT and SEM,respectively.Thermal property parameters of DNAN and TNT samples were tested by DSC and thermal conductivity measuring instrument.The change rule of temperature of the different position in DNAN and TNT grains with time was measured by a home-made solidification rate measuring device.The average linear solidification rate under different solidifying layer thicknesses was obtained through calculation.Results show that the volume shrinkage of DNAN is 13.2%,higher than that of TNT.The rate of divergence of solidification de-fect of DNAN is higher than that of TNT.The solidification rate of DNAN is close to that of TNT during the early solidification process.With increasing the solidified layer thickness,DNAN solidification rate increases rapidly, significantly higher than that of TNT.The solidification of DNAN belongs to mid-solidification,which is different from TNT of layer-by-layer solidification.关键词
物理化学/2,4-二硝基苯甲醚/DNAN/TNT/凝固缺陷/凝固速率/中间凝固Key words
physical chemistry/2,4-dinitroanisole/DNAN/TNT/solidification defect/solidification rate/mid-solidification分类
军事科技引用本文复制引用
罗一鸣,蒋秋黎,赵凯,王浩..2，4-二硝基苯甲醚与 TNT 凝固行为的差异性分析[J].火炸药学报,2015,(5):37-40,4.基金项目
总装备部重大专项 （）
