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Title
A comparative rheological study of several colloidal systems based on cellulose derivatives
Authors
Anca Balan Anca Moise and Aurelia Grigoriu
Received
October 19, 2009
Published
Volume 44 Issue 7-8 July-August
Keywords
methylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, textile printing
Abstract
Aiming at diversifying the range of thickening products used in textile printing, several cellulosic ethers (methylcellulose, methylhydroxypropylcellulose and hydroxyethylcellulose) were tested. IR spectroscopy confirmed the chemical structures and the substitution degree of the commercial products Benecel, Benecel M and Tubicoat HEC. Rheological measurements were performed for systems with different concentrations, at temperatures in the normal working range and shear rates ranging from 1 s-1 to 243 s-1. The rheological models elaborated on the basis of the resulted rheograms, allowed to calculate the viscosity of parameters’ experimental domains. The present study leads to the conclusion that the colloidal systems consisting of 2% methylhydroxypropylcellulose and hydroxyethylcellulose have sufficient consistency to form pastes with adequate properties for textile printing.
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