• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Investigation of the thermal decomposition and stability of energetic 1,2,4-triazole derivatives using a UV laser based pulsed photoacoustic technique
【24h】

Investigation of the thermal decomposition and stability of energetic 1,2,4-triazole derivatives using a UV laser based pulsed photoacoustic technique

机译：利用紫外激光基脉动光声技术研究了能量1,2,4-三唑衍生物热分解及稳定性

获取原文
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper is in continuation of our previous report which was based on a 532 nm wavelength pulsed photoacoustic (PA) technique with nitro rich energetic materials named 1-(4-methyl-3,5-dinitrophenyl)-1 H -1,2,4-triazole ( p -Me-DNPT), 1-(4-methoxy-3,5-dinitrophenyl)-1 H -1,2,4-triazole ( p -OMe-DNPT), and 2,6-dinitro-4-(1 H -1,2,4-triazol-1-yl) aniline ( p -NH _(2) -DNPT) in the 30–350 °C temperature range. In the present work, the PA fingerprint spectra, thermal stability and efficiency of these compounds as rocket fuel have been evaluated using the fourth harmonic i.e. 266 nm wavelength of 7 ns pulse duration and 10 Hz repetition rate as an excitation source. The entire study is based on the photodissociation process due to the π* ← n electronic transition in NO _(2) molecules which is initiated inside the PA cell. The result obtained from the PA technique and thermogravimetric-differential thermal analysis (TG-DTA) data confirm the multistep decomposition mechanism. The study also provides the stable thermal quality factor “ Q ” which is linked to the stability of the compound.
机译：本文继续进行我们之前的报告，该报告基于532nm波长脉冲光声（PA）技术，其中硝基富有能量材料称为1-（4-甲基-3,5-二硝基苯基）-1h -1,2， 4-三唑（p-me-dnpt），1-（4-甲氧基-3,5-二硝基苯基）-1 h -1,2,4-三唑（p-oom-dnpt）和2,6- inditro- 4-（1 H-1,2,4-三唑-1-基）苯胺（P-NH _（2）-DNPT）在30-350℃的温度范围内。在本作的工作中，使用第四谐波I.2266nm波长为7 ns脉冲持续时间和作为激发源的10Hz重复率的266nm波长评估了这些化合物的PA指纹光谱，作为火箭燃料的热稳定性和效率。整个研究基于由于在PA电池内部的NO _（2）分子中的π*←N电子转换而导致的光学探测过程。从PA技术获得的结果和热重分析热分析（TG-DTA）数据确认了多步骤分解机制。该研究还提供稳定的热质因子“Q”，其与化合物的稳定性相关联。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号