水胶炸药胶体溶液流变特性的试验研究

Experimental Research on Rheologic Property of Gel in Water-gel Explosive

对不同的胶凝剂浓度、水合温度、剪切速度以及盐浓度下溶胶溶液的表观粘度进行测试。数据表明:在水胶炸药生产过程中,交联之前的溶胶表观粘度受浓度影响较大,表现出非牛顿流体的特征;田菁胶高分子溶液在不同的温度下的表观粘度变化不大,在20～80℃条件下有很好的热稳定性;随着剪切速度的增加,表观粘度开始呈递增,当达到一定剪切速度后,表观粘度下降;水胶炸药组分中盐效应对凝胶体系影响不明显。

The paper reviews the apparent viscosity of sol solution under different concentrations of gelling agents,hydration temperature,and shear rate and salinity.Date shows that：in the production process of water-gel explosive,the sol solution,before cross-linking,shows the characteristic of non-Newtonian fluid and its concentration have a great impact on apparent viscosity;in different temperature the apparent viscosity of SG polymer solution have little change,which means the sol solution has good thermal stability over a temperature range from 20℃ to 80℃;with the increase of shear rate,the apparent viscosity increases,then it decreases when reaching a certain shear rate;the salt effect of components in water-gel explosive has similar impact on sol rheological behavior.