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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2020, Volume 71, Issue 6, 51-58

https://doi.org/10.37358/RC.20.6.8169

Ihsan Bozdogan, Muserref Onal, Abdullah Devrim Pekdemir, Yuksel Sarikaya

Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions

Abstract:

Since their exceptional rheological behavior, bentonite suspensions are widely used in engineering, industrial, agricultural, and drilling applications. So, the aim of the present study is to investigate the rheological properties of three types aqueous suspensions prepared with calcium bentonite (CaB), sodium bentonite (NaB) obtained from that by Na2CO3 activation, and NaB with the excess soda. The CaB taken from Giresun/Turkey region contains calcium smectite (CaxS) as clay mineral and opal CT (SiO2.nH2O) as impurity which is paracrystalline silica. Soda content by the activation and bentonite content in the suspension were changed in the interval of 2.5-15.0% and 5-20% by mass, respectively. CaxS completely converted to sodium smectite (Na2xS) by the activation with the soda content of 2.5% and then Na2xS+Na2CO3 mixtures formed. Rheological properties of these aqueous suspensions were measured using a Fann Viscometer. These properties reached their maxima by the most thixotropic Na2xS suspensions and greatly increased with the increasing of smectite content. Rheological plots drawn of the shear rate vs. shear stress in the interval of 170-1020 s-1 showed that the suspensions flow as a Bingham Plastic. Change in rheological properties depending on the smectite type and content as well as excess soda content was explained thermodynamically based on the chemical potential gradient between interlayer and dispenser waters.
Keywords:
bentonite; rheology; suspension; yield stress

Issue: 2020, Volume 71, Issue 6
Pages: 51-58
Publication date: 2020/7/1
https://doi.org/10.37358/RC.20.6.8169
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
BOZDOGAN, I., ONAL, M., PEKDEMIR, A.D., SARIKAYA, Y., Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions, Rev. Chim., 71(6), 2020, 51-58.

Vancouver
Bozdogan I, Onal M, Pekdemir AD, Sarikaya Y. Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions. Rev. Chim.[internet]. 2020 Jun;71(6):51-58. Available from: https://doi.org/10.37358/RC.20.6.8169


APA 6th edition
Bozdogan, I., Onal, M., Pekdemir, A.D. & Sarikaya, Y. (2020). Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions. Revista de Chimie, 71(6), 51-58. https://doi.org/10.37358/RC.20.6.8169


Harvard
Bozdogan, I., Onal, M., Pekdemir, A.D., Sarikaya, Y. (2020). 'Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions', Revista de Chimie, 71(6), pp. 51-58. https://doi.org/10.37358/RC.20.6.8169


IEEE
I. Bozdogan, M. Onal, A.D. Pekdemir, Y. Sarikaya, "Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions". Revista de Chimie, vol. 71, no. 6, pp. 51-58, 2020. [online]. https://doi.org/10.37358/RC.20.6.8169


Text
Ihsan Bozdogan, Muserref Onal, Abdullah Devrim Pekdemir, Yuksel Sarikaya,
Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions,
Revista de Chimie,
Volume 71, Issue 6,
2020,
Pages 51-58,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.6.8169.
(https://revistadechimie.ro/Articles.asp?ID=8169)
Keywords: bentonite; rheology; suspension; yield stress


RIS
TY - JOUR
T1 - Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions
A1 - Bozdogan, Ihsan
A2 - Onal, Muserref
A3 - Pekdemir, Abdullah Devrim
A4 - Sarikaya, Yuksel
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 6
SP - 51
EP - 58
UR - https://doi.org/10.37358/RC.20.6.8169
KW - bentonite
KW - rheology
KW - suspension
KW - yield stress
ER -


BibTex
@article{RevCh2020P51,
author = {Bozdogan Ihsan and Onal Muserref and Pekdemir Abdullah Devrim and Sarikaya Yuksel},
title = {Thermodynamic Interpretation on the Rheology of Aqueous Bentonite Suspensions},
journal = {Revista de Chimie},
volume = {71},
number = {6},
pages = {51-58},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.6.8169},
url = {https://revistadechimie.ro/Articles.asp?ID=8169}
}
 
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