中空玻璃微球在抗压乳化炸药中的研究

Application of Hollow Glass Microspheres in Emulsion Explosive

为了探究中空玻璃微球和化学敏化两种敏化方式制得乳化炸药的抗静压性能,将制备的乳化炸药在0.4MPa的压力条件下分别放置2h、4h。通过显微镜采集乳化炸药实验前后的微观结构图像,利用Image J软件分析微观结构的参数。结果表明:在静压作用2h、4h下,化学敏化制备的乳化炸药微观结构平均直径分别增长1.5倍和2.5倍,气泡结构失去热点效应作用,而中空玻璃微球敏化的乳化炸药具备更好的抗静压作用,能够满足直径在0~100μm内微粒占比在75%以上的需求,可为正常爆轰提供条件。

In order to explore the antistatic properties of emulsion explosives,which were prepared by two sensitization method of hollow glass microspheres and chemical sensitization,the prepared emulsion explosives were placed under 0.4MPa pressure for 2h and 4h respectively.The microstructure images of the emulsion explosive before and after the test were collected through a microscope,and the parameters of the microstructure were analyzed by Image J software.It was found that the average diameter of the microstructure of the emulsion explosive prepared by chemical sensitization increased by 1.5 times and 2.5 times,and the bubble structure lost the hot spot effect under static pressure for 2h and 4h.While the emulsified explosive sensitized by hollow glass microspheres has better antistatic effect,and can meet the requirement of more than 75%of particles with the diameter of 0~100μm,which provides conditions for normal detonation.