乳化炸药密度对其压力减敏的影响

在相同的乳胶基质内分别添加2%、3%、4%、5%的空心玻璃微球，2%、3%、4%、5%的膨胀珍珠岩和0.10%、0.15%、0.20%、0.25%的化学发泡剂制备了3组乳化炸药。测试了各组乳化炸药未受压时和受冲击波动态压缩作用之后的水下爆炸冲击波，以波峰值计算他们的压力减敏度。比较了各组乳化炸药的压力减敏度大小，分析了密度对乳化炸药压力减敏的影响。结果表明:密度较大的乳化炸药压力减敏度较小，膨胀珍珠岩或化学发泡剂的添加量越大，乳化炸药越容易产生压力减敏作用；空心玻璃微球的添加量由2%增加到4%，乳化炸药的压力减敏度增加，但当空心玻璃微球的添加量由4%增加到5%后，乳化炸药的压力减敏度反而减小。密度对乳化炸药压力减敏影响的主要原因在于密度调整剂周围的乳胶基质破乳。

Influences of emulsion explosive density on its pressure desensitization

Three groups of emulsion explosives were made of the same emulsion matrix mixed with 2%,3%,4% and 5% by the mass of hollow glass microspheres respectively in group 1,and with 2%,3%,4% and 5% by the mass of expanded perlite respectively in group two,and with 0.10%,0.15%,0.20% and 0.25% by the mass of chemical foaming agent in group 3.The explosion shock waves of all the emulsion explosives in every group were tested in water in two cases that when they were not pressed and after they were compressed by shock...