Citation: FENG Jin-Ling, ZHANG Jian-Guo, ZHANG Tong-Lai, LI Zhi-Min, YANG Li, WANG Shao-Zong. Morphology Control and Its Influence on the DecompositionBehavior and Sensitivity of KDNBF[J]. Acta Physico-Chimica Sinica, ;2010, 26(10): 2613-2618. doi: 10.3866/PKU.WHXB20100950 shu

Morphology Control and Its Influence on the DecompositionBehavior and Sensitivity of KDNBF

1.
1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P. R. China;
2. Academy of Machinery Science&Technology, Beijing 100083, P. R. China

Received Date: 12 March 2010
Available Online: 27 September 2010
Fund Project: 国家自然科学基金(20471008) (20471008)教育部新世纪优秀人才支持计划(NCET-09-0051)资助项目 (NCET-09-0051)

The potassium salt of 7-hydroxy-4,6-dinitro-5,7-dihydrobenzofuroxanide (KDNBF) was prepared by a reaction of the sodium salt of DNBF with potassium sulfate in aqueous solution. Samples of KDNBF with different morphologies were obtained by adding various surfactants. The effect of a single surfactant on the sample morphology was determined withpowder X-ray diffraction (XRD) data. The thermal decomposition behaviors of KDNBF with different shapes were studied using differential scanning calorimetry(DSC) and thermogravimetry(TG) analyses. The kinetic parameters of the exothermic processes were studied by applying the Kissinger 's and Ozawa-Doyle 's methods. The results show that the spherical sample has a lower decomposition temperature and higher reaction activation energy than the other forms of the sample. Furthermore, impact sensitivity, flame sensitivity, and friction sensitivity tests indicated that the spherical KDNBF sample has stronger friction and impact sensitivities and weaker flame sensitivity.
- Thermal behavior,
- Potassium salt of 7-hydroxy-4,6-dinitro-5,7-dihydrobenzo-furoxanide,
- Morphology,
- Sensitivity,
- Surfactant
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