The rheological behavior of pharmaceutical liquids essay
Drilling problems such as shale hydration, high temperature tolerance, torque and drag are often solved by applying an appropriate drilling fluid formulation. Oil-based drilling fluid OBDF formulations are. In this paper, the rheological behavior of a petroleum-based epoxy EL epoxy was compared with the Super Sap CLR clear bioresin epoxy. The focus of the work was on the viscous, rheology is the study of flow and deformation. Hemorheology is specifically concerned with the flow properties of blood. The fluidity of blood is strongly influenced by flow conditions. More specifically, ηb depends on the shear rate, and decreases as the shear rate increases. This property is known as shear thinning and is characteristic of a non-Newtonian property. The rheological properties of drilling fluids have always been considered critical aspects for the success of drilling operations. Therefore, mastery of these properties was of utmost importance. In this paper, the rheological behavior of a water-soluble polymer, namely hydroxyethylcellulose HEC, used in drilling fluids is investigated. Undoped lyotropic phases and nanocolloids are studied for static and dynamic rheology, frequency range and thixotropic behavior. Shear rheology infers from the shear thinning to Newtonian checkout. The behavior of the fluid is discussed in terms of simple shear flow and the relationship of such behavior to laminar shear flow is indicated. The behavior is obtained by solving the constitutive. Hydrocolloid-based films are a good alternative in the development of biodegradable films due to their properties including non-toxicity, functionality and biodegradability, among others. In this work, films based on hydrocolloids gellan gum, carrageenan and guar gum were formulated, evaluating their dynamic rheology. After establishing confidence with the base fluid, the rheological behavior of the formulated nanofluids was measured over a temperature range of -293.15-333. Rheological behavior of nanofluids. The rheological flow behavior of any fluid is explained in terms of the relationship between shear stress, τ, and shear rate, γ. The shear stress is defined as the tangential force applied per unit area and the shear rate is expressed as the change in shear stress per unit area. unit time.