聚氧乙烯氧丙烯无规聚醚/水体系的流变性能研究  

The Study on the Rheology of Randon Polxoxyethyleneoxyprolene Ether/H_2O System

作　　者：余祥[1] 葛继均[1] 沈永芳[1] 

机构地区：[1]天津纺织工学院材料科学系,天津300160

出　　处：《表面活性剂工业》1999年第3期13-15,19,共4页

摘　　要：本文研究了无现聚醚／水体系的粘温粘政特性，并对其流变性及粘弹性质进行了讨论。结果表明，其粘温曲线上存在粘度突跃，60％、70％处的粘度突跃是由于体系处于相分离状态而产生的。在低于50℃时，该体系呈牛顿型流体。在低频率作用下，体系呈现粘性流体。当频率大于10rad／s时，体系由粘性转为弹性体，此时流动阻力增大。In this paper,the property of viscosity temperature as well as the viscosity-concentration of the random polyether/H,O system is studied togethel with its rheology and visco-elastic property. The results state that there is a viscosity jump in the figure of viscosity temperature which is caused by the phase separation at the concentration of 60% or 70%. This system shows the Newtonian fluid from 20℃ to 50 ℃. Under low frequency,this 'system shows as a viscous fluid. It will change to elastomer when the frequency is above 100 rad/s and thus causes the high fluid resistant.

关 键 词：聚醚 流变性 粘弹性 剪切 非离子型 表面活性剂 

分 类 号：TQ423.2[化学工程]