Rheological Characterization of Polyoxyethylene (POE) and Carboxymethyl Cellulose (CMC) Suspensions with Added Solids

1st International Conference on Rheology and Modeling of Materials

物理学;材料科学

Mora, A.^1,2 ; Skurtys, O.^1 ; Osorio, F.^2

Department of Mechanical Engineering, Universidad Técnica Federico Santa María, Av. Vicuña Mackenna 3939, Santiago, Chile^1

Department of Food Science and Technology, Universidad de Santiago de Chile, Avenida Ecuador 3769, Santiago, Chile^2

关键词: Carboxymethyl cellulose;    Elastic behavior;    High molecular weight;    Rheological characterization;    Rheological property;    Spherical particle;    Steady shear viscosity;    Viscous behaviors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/602/1/012013/pdf
DOI  :  10.1088/1742-6596/602/1/012013

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The rheological properties of high molecular weight POE and CMC suspensions by adding micro-metric solid particles such as fibers or spheres were studied. The volume fraction, Φ, was varied between 0 and 0.4. Their rheological properties were obtained after fitting a Cross model. For POE suspending fluid with spherical particle, the behavior of the normalized steady shear viscosity, μ/μ0, as function of the fraction volume followed a Thomas model. However, for CMC suspensions, μ/μ0seems to be lineal with Φ. For a pure fluid or a suspension with Φ = 0; 2, the suspension presented an elastic behavior whereas it was observed a viscous behavior when the volume fraction was increased.