Abstract

This work demonstrated the criterion of shear stability of emulsion explosive matrices (EEM), combined with rheology test, interfacial tension test, droplet size test and the crystallization test of emulsion explosive matrices. The shear stability of emulsion explosive matrices was defined as the characteristic refinement time of the droplet size decrease in emulsification process. The constitutive relationship between the characteristic refinement time and droplet size of inner phase droplets was proposed by theoretical analysis and experiments on the emulsification process of emulsion explosive matrices. By analyzing the relationship between rheological properties and characteristic refinement time of emulsion explosive matrices, the relationship model between Bingham coefficient and dimensionless coefficient was established to characterize the shear stability of emulsion explosive matrices. The effects of shear strength, shear time and shear shape on the stability of emulsion explosive matrices were studied. In addition, there exists a critical value to quantitatively characterize the shear stability of emulsion explosive matrices.

中文翻译：

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剪切参数对乳化炸药基质稳定性的影响

摘要

结合乳化炸药基质的流变测试、界面张力测试、液滴尺寸测试和结晶测试，论证了乳化炸药基质剪切稳定性的判定标准。乳化炸药基质的剪切稳定性定义为乳化过程中液滴尺寸减小的特征细化时间。通过对乳化炸药基质乳化过程的理论分析和实验，提出了内相液滴特征细化时间与液滴尺寸之间的本构关系。通过分析乳化炸药基质的流变性质与特征细化时间的关系，建立了Bingham系数与无量纲系数的关系模型来表征乳化炸药基质的剪切稳定性。研究了剪切强度、剪切时间和剪切形状对乳化炸药基质稳定性的影响。此外，还存在一个定量表征乳化炸药基质剪切稳定性的临界值。