The flow properties of natural Ca bentonite and Na bentonite-water systems
were studied after adding an anionic polyacrylamide (PAM) polymer. The effe
ct of the PAM has also been investigated at different quantities. The exper
imental results are discussed in terms of bentonite forms and concentration
of PAM. Besides, measurement of theological properties of Ca bentonite + P
AM and Na bentonite + PAM systems have been examined in detail through XRD,
FT-IR and DTA analyses. (C) 2001 Elsevier Science B.V. All rights reserved
.