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用光声-光电测试法,EMS方法和DSC热分析方法研究酚醛树脂对B/KNO3点火药的激光点火特性的影响。研究结果表明,在一定的入射激光能量下,当有酚醛树脂时,B/KNO3体系点火药的点火延迟期缩短,光声信号也减小,酚醛树脂的作用在于抑制样品的能量和物质量向环境流失。样品表面激光烧蚀斑的电子显微照相表明有无酚醛树酯,药剂的烧蚀情况无明显的差异,激光在药剂表面形成多个点火中心。
The effects of phenolic resin on the ignition properties of B / KNO3 ignition powder were studied by photoacoustic-photoelectric test, EMS method and DSC thermal analysis. The results show that under certain incident laser energy, the ignition delay time of B / KNO3 system ignition powder shortens and photoacoustic signal decreases with the presence of phenolic resin. The effect of phenolic resin is to suppress the energy and mass of sample Environmental loss. Electron micrographs of the laser ablated spots on the sample surface show that there is no phenolic resin and there is no significant difference in ablation of the medicament. The laser forms multiple ignition centers on the surface of the medicament.