Thesis-1975-Ayub.pdf (6.09 MB)
Rheological investigation of a stabilised suspension of calcium carbonate
thesis
posted on 2018-08-15, 11:13 authored by Akram B.C. AyubThis thesis is a continuation of work started by Riley who observed anomalies in the rheological behaviour of concentrated
suspensions of calcium carbonate stabilised by polyacrylate (Dispex
N40) exposed to steady shear. The present work consists of a detailed
investigation of the same system under condition of oscillatory shear
from which non-linear behaviour was observed. Using the model of
Green and Revlin and analysing the data by means of harmonic analysis
the elastic and viscous moduli of the system were determined as the
functions of strain, strain rate and concentration.
The thesis reviews theories of linear and non-linear behaviour
of dispersed systems and attempts to relate the results obtained to
this theory. In order to do this measurements and calculations were
made of the degree of the colloidal stabilities of the dispersions
used.
Funding
National University of Malaysia (Bangi, Malaysia).
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Publisher
© Akram Bin Che AyubPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
1975Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.Language
- en