With high polymer added into suspension, the use of abrasive slurry jet (ASJ) has significant advantages in energy management. The quality and efficiency of ASJ are affected distinctly by its structure and the flow field feature, both of which depend on the rheological properties of the abrasive slurry. Therefore, this paper carries out a series of experiments to study the rheological properties of abrasive slurry with polyacrylamide (PAM) and carboxy methyl cellulose (CMC) commonly used in ASJ. The paper also explores the effect of temperature and abrasive on the apparent viscosity of the abrasive slurry. Experimental results show that PAM and CMC solutions behave as a pseudoplastic non-Newtonian fluid in the selected concentration range, whose apparent viscosity increases with the concentration. In addition, specific non-Newtonian fluid constitutive equations of the power-law model for PAM and CMC solution were obtained by nonlinear fitting calculation. The apparent viscosity decreases with the growth of temperature because it leads to the increase in spacing between molecules, making the attraction between molecules smaller and smaller. However, the abrasive has no influence on the apparent viscosity of abrasive slurry for these molecular bonds, and their mechanical entanglements are not destroyed by abrasive particles in the suspension. Graphical abstract The results and conclusion of this paper can be used to study the formulation optimization and fluid field properties of abrasive slurry jet (ASJ), which also can provide guidance for the engineering application of ASJ.

中文翻译：

---

悬浮在磨料浆射流中的两种高聚物的流变特性

通过将高聚物添加到悬浮液中，使用磨料浆射流（ASJ）在能源管理方面具有显着优势。ASJ的结构和流场特征对ASJ的质量和效率有明显的影响，这两者都取决于磨料浆的流变特性。因此，本文进行了一系列实验，研究了ASJ常用的聚丙烯酰胺（PAM）和羧甲基纤维素（CMC）磨料浆的流变特性。本文还探讨了温度和磨料对磨料浆表观粘度的影响。实验结果表明，PAM和CMC溶液在选定的浓度范围内表现为假塑性非牛顿流体，其表观粘度随浓度而增加。此外，通过非线性拟合计算，获得了PAM和CMC解的幂律模型的特定非牛顿流体本构方程。表观粘度随温度的升高而降低，因为它导致分子之间的间距增加，从而使分子之间的吸引力越来越小。然而，对于这些分子键，磨料对磨料浆的表观粘度没有影响，并且它们的机械缠结不会被悬浮液中的磨料颗粒破坏。图形摘要本文的结果和结论可用于研究磨料浆射流（ASJ）的配方优化和流场特性，也可为ASJ的工程应用提供指导。