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热致型聚合物的主要特点就是黏度会随温度升高而增大,最终能变为凝胶状。由于其具有独特的特征,流变性与常规聚合物(HPAM)有所不同,因此很有必要研究该类聚合物的流变性,为矿场应用设计提供理论依据。应用Brookfield型旋转黏度计系统研究了该类聚合物的流变性,结果表明:在一定剪切速率范围内,溶液均呈现剪切变稀特性,符合幂律流体模式。根据实验结果建立了描述溶液宏观流变性流变模型,并拟合出模型中常量,稀溶液的常量与常规聚合物的相同,亚溶液则相反。
The main characteristic of thermotropic polymers is that the viscosity increases with increasing temperature, eventually becoming gel-like. Because of its unique characteristics, rheology and conventional polymer (HPAM) are different, so it is necessary to study the rheological properties of such polymers, providing a theoretical basis for the design of the mine application. The rheological properties of this kind of polymer were investigated by Brookfield viscometer. The results show that the solution exhibits shear thinning behavior and is in agreement with the power law fluid model at a certain shear rate. Based on the experimental results, a macroscopic rheological rheological model was established to describe the rheological properties of the solution. The constants of the model were fitted. The constants of dilute solution were the same as those of the conventional polymer. The sub-solution was the opposite.