rheology

Вплив електролітів на реологічні властивості шлікерів із глин різного мінералогічного складу

The experimental researches of regulation of rheology properties of clay mixture by using to clays the additives of mineral and organiccontained electrolytes in ceramics technology are given.  Подано експериментальні дослідження регулювання реологічних властивостей шлікерів за допомогою використання до глин добавок мінеральних і органовмісних електролітів у технології кераміки.

Mathematical model of rheological behavior of silica suspension in hydroxypropyl methyl cellulose solution

A mathematical model of rheological behavior of silica suspension in hydroxypropyl methyl cellulose solution was investigated. The model takes into account the friction between particle aggregates, particle aggregates and macromolecules in solution and between macromolecules in solution as well as the formation of well ordered layers contained solid particles, adsorbed macromolecules and macromolecules in the holes between particles in aggregates at the large shear rates.

Study of Conditions for Polyacrylamide Use in Petroleum Reservoirs: Physical Flow Simulation in Porous Media

This article describes the reservoir’s average shear rate calculation and the rheological study of the polymer dispersion under the target reservoir conditions. It also identifies and quantifies the rock-fluid interaction parameters with this reservoir, including the total adsorption, residual resistance factor. The results confirm that the selected polymer is suitable to the target reservoir.

Effect of Extrusion Processing Variables in the Polyethylene/Clay Nanocomposites Rheological Properties

In this work, high density polyethylene, HDPE, was compounded in a twin screw extruder with organophilic treated montmorillonite clay and a compatibilizer agent. The screws configuration was changed from distributive to highly dispersive [1], using four different profiles. The extrusion conditions were also changed. The exfoliation degree was evaluated by X-rays. The rheological measurements showed different behavior according to the processing adopted.