期刊
RSC ADVANCES
卷 7, 期 10, 页码 5957-5965出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra27780b
关键词
-
资金
- Natural Science Foundation of China [50972060, 51606102]
- Weapon Research Support Fund [62201070804]
- Qing Lan Project
- Environmental Protection Scientific Research Project of Jiangsu Province [2016056]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Shanghai Aerospace Science and Technology Innovation Fund [SAST2015020]
- Basic Product Innovation Technology Research Project of Explosives
1,3,5,7-tetranitro-1,3,5,7-tetrazocane/glycidylazide polymer (HMX/GAP) nanocomposites were successfully prepared via a facial sol-gel supercritical method. The as-synthesized HMX/GAP nanocomposites were characterized by X-ray diffraction (XRD), Raman, and Fourier-transform infrared spectroscopy (FT-IR), which indicated that HMX were successfully trapped in GAP gel skeleton. Scanning electron microscopy (SEM) images revealed that the GAP gel skeleton possessed nano-porous structure, which made it possible to load HMX particles. The thermal decomposition behaviours of GAP, raw HMX and HMX/GAP nanocomposites were determined by differential thermal analyser (DTA). The results indicated that GAP aerogel could promote the decomposition of HMX and enhance the interaction between GAP and HMX. The kinetic, thermodynamic and thermal stability parameters, such as activation energy (Ea), perexponent factor (ln A), activation heat (Delta H-not equal), activation free energy (Delta G(not equal)), activation entropy (Delta S-not equal), critical temperature of thermal explosion (T-b) and the self-accelerating decomposition temperature (T-SADT) were calculated according to DTA analysis. The calculated results implied that HMX/GAP showed much lower activation energy than raw HMX. Similarly, the HMX/GAP presented a much lower Tb and T-SADT than raw HMX. According to the impact sensitivity tests, the mechanical sensitivities of HMX/GAP nanocomposites were significantly lower than those of raw HMX.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据