Aluminum powder was always chosen as an additive to improve the explosive performance. In this work, experiments were performed to investigate the lower flammability limit (LFL) of volatile liquid fuel-aluminum powder mixtures using a 20 L closed spherical stainless steel vessel at a temperature of 20 °C (293 K) and 40 °C (313 K). The volatile liquid fuels tested in the work were diethyl ether (DEE), epoxypropane (PO), n-pentane and n-hexane. DEE, PO and n-pentane are in the liquid phase at room temperature and can easily transition to the gas phase at 40 °C (313 K). Through a series of experiments carried out, it was found that the change in phase would affect the interaction between the components. Aluminum powder always has an inhibitory effect on the flammability of the mixtures when it is mixed with gas-phase fuels. The inhibition effect was most obvious when the aluminum powder concentration reached 200 g/m³. While the interaction between aluminum powder and liquid-phase volatile fuels was promotion and was influenced by the component proportion and the type of the volatile fuels.

总是选择铝粉作为添加剂来改善炸药性能。在这项工作中，使用20 L密闭球形不锈钢容器，在20°C（293 K）和40°C（313）的温度下，研究了挥发性液体燃料-铝粉混合物的下燃极限（LFL）。 K）。在工作中测试的挥发性液体燃料是二乙醚（DEE），环氧丙烷（PO），Ñ戊烷和Ñ正己烷。DEE，PO和n戊烷在室温下呈液相状态，在40°C（313 K）时很容易转变为气相。通过进行的一系列实验，发现相变会影响组件之间的相互作用。铝粉与气相燃料混合时，始终会对混合物的可燃性产生抑制作用。当铝粉浓度达到200 g / m ³时，抑制作用最为明显。铝粉与液相挥发性燃料之间的相互作用得到促进，并且受挥发性燃料的组分比例和类型的影响。