CAJ | 학술논문

通过7-羟基-4,6-二硝基-5,7-二氢苯并呋咱(DNBF)的钠盐与硫酸钾在水溶液中反应,制备得到DNBF的钾盐(KDNBF).在制备过程中加入不同表面活性剂,得到了不同晶形的KDNBF样品.运用X射线粉末衍射分析了单种晶形控制剂对样品晶形的影响.采用差示扫描量热(DSC)和热重(TG)分析技术研究了不同晶形样品的热分解特性,利用Kissinger方法和Ozawa-Doyle方法研究了样品第一放热分解峰的分解动力学过程.结果表明球形样品与其它晶形的样品相比,具有较低的分解温度、较高的活化能;同时发现,球形样品具有较高的摩擦和撞击感度与较低的火焰感度.
통과7-간기-4,6-이초기-5,7-이경분병부찰(DNBF)적납염여류산갑재수용액중반응,제비득도DNBF적갑염(KDNBF).재제비과정중가입불동표면활성제,득도료불동정형적KDNBF양품.운용X사선분말연사분석료단충정형공제제대양품정형적영향.채용차시소묘량열(DSC)화열중(TG)분석기술연구료불동정형양품적열분해특성,이용Kissinger방법화Ozawa-Doyle방법연구료양품제일방열분해봉적분해동역학과정.결과표명구형양품여기타정형적양품상비,구유교저적분해온도、교고적활화능;동시발현,구형양품구유교고적마찰화당격감도여교저적화염감도.
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 suffactants.The effect of a single surfactant on the sample morphology was determined with powder X-ray diffraction (XRD) data.The thermal decomposition behaviors of KDN-BF 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.