Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-26T21:49:49.315Z Has data issue: false hasContentIssue false
  • English
  • Français

Anionic Polyacrylamide Polymer Adsorption by Pyrophyllite and Montmorillonite

Published online by Cambridge University Press:  01 January 2024

Hadar Heller  and
Rami Keren
Hadar Heller
Affiliation:
Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization (ARO), PO Box 6, Bet Dagan 50250, Israel
Rami Keren*
Affiliation:
Institute of Soil, Water and Environmental Sciences, The Volcani Center, Agricultural Research Organization (ARO), PO Box 6, Bet Dagan 50250, Israel
*
*E-mail address of corresponding author: rkeren@volcani.agri.gov.il
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The mechanism by which the anionic polymers interact with platelets of 2:1 clay minerals is not fully understood. The objective of the present study was to evaluate the effect of the electric field associated with the basal and edge surfaces of the clay minerals on the adsorption of anionic polymers. Two negatively charged polymers, PAM90 and ACC86, of the same molecular weig ht (2 × 105 g mol−1) but with different degrees of hydrolysis (90 and 20%, respectively), were used. The effect of pH (6, 10), NaCl concentration (0, 10 mmolC L−1) and clay particle size on PAM90 adsorption by pyrophyllite and the effect of NaCl concentration on the adsorption of these polymers by Na-montmorillonite in aqueous suspensions were studied. Adsorption of PAM90 on pyrophyllite was greater at pH 6 than at pH 10 and greater in 10 mmol L−1 NaCl than in distilled water. Adsorption of PAM90 on pyrophyllite increased with decreasing particle size. On pyrophyllite the high-charge-density PAM90 was adsorbed to a greater extent than the low-charge-density ACC86; by contrast, ACC86 adsorption was greater than that of PAM90 on Na-montmorillonite. These results were attributed to the repulsive forces which develop between the negatively charged extended-chain polymer and the extended negative electric field associated with the basal surfaces, around the Na-montmorillonite platelets. The results may suggest that the edge surfaces play a major role in PAM adsorption.

Keywords

MontmorillonitePolyacrylamide-Clay InteractionPyrophyllite
Type
Research Article
Information
Clays and Clay Minerals , Volume 51 , Issue 3 , June 2003 , pp. 334 - 339
Copyright
Copyright © 2003, The Clay Minerals Society

References

Aly, S.M. and Letey, J., (1988) Polymer and water quality effects on flocculation of montmorillonites Soil Science Society of America Journal 52 1453–1458 10.2136/sssaj1988.03615995005200050047x.Google Scholar
Ben-Hur, M. Malik, M. Letey, J. and Mingelgrin, U., (1992) Adsorption of polymers on clays as affected by clay charge and structure, polymer properties and water quality Soil Science 153 349–356 10.1097/00010694-199205000-00002.Google Scholar
Black, A.P. Birkner, F.B. and Morgan, J.J., (1965) Destabilization of dilute clay suspensions with labeled polymers Journal of the American Water Works Association 57 1547–1560 10.1002/j.1551-8833.1965.tb01542.x.Google Scholar
Bleam, W.F. Welhouse, G.J. and Janowiak, M.A., (1993) The surface coulomb energy and proton coulomb potentials of pyrophyllite 010, 110, 100 and 130 edges Clays and Clay Minerals 41 305–316 10.1346/CCMN.1993.0410305.Google Scholar
Espinasse, P. and Siffert, B., (1979) Acetamide and polyacrylamide adsorption onto clays: Influence of exchangeable cation and the salinity of the medium Clays and Clay Minerals 27 279–284 10.1346/CCMN.1979.0270406.Google Scholar
Greenland, D.J. (1972) Interactions between organic polymers and inorganic soil particles. In: Proceedings of the Symposium on the Fundamentals of Soil Conditioning, in Ghent, Belgium (DeBoodt, M., editor). State University of Ghent, Belgium.Google Scholar
Heller, H. and Keren, R., (2001) Rheology of Na-montmorillonite suspension as affected by electrolyte concentration and shear rate Clays and Clay Minerals 49 286–291 10.1346/CCMN.2001.0490402.Google Scholar
Heller, H. and Keren, R., (2002) Anionic polyacrylamide polymers effect on rheological behavior of Na-montmorillonite suspensions Soil Science Society of America Journal 66 19–25 10.2136/sssaj2002.1900.Google Scholar
Keren, R. and Sparks, D.L., (1994) Effect of pH and ionic strength on boron adsorption by pyrophyllite Soil Science Society of America Journal 58 1095–1100 10.2136/sssaj1994.03615995005800040013x.Google Scholar
Keren, R. and Sparks, D.L., (1995) The role of edge surfaces in flocculation of 2:1 clay minerals Soil Science Society of America Journal 59 430–435 10.2136/sssaj1995.03615995005900020023x.Google Scholar
Lagaly, G. (1987) Clay-organic interactions: problems and recent results. Pp. 343–351 in: Proceeding of the International Clay Conference, Denver 1985 (Schultz, L.G., Olphen, H. van and Mumpton, F.A., editors). Clay Minerals Society, Bloomington, Indiana.Google Scholar
Laird, D.A., (1997) Bonding between polyacrylamide and clay mineral surfaces Soil Science 162 826–832 10.1097/00010694-199711000-00006.Google Scholar
Lee, L.T. Rahbari, R. Lecourtier, J. and Chauveteau, G., (1991) Adsorption of polyacrylamides on the different faces of kaolinites Journal of Colloid and Interface Science 147 351–357 10.1016/0021-9797(91)90167-7.Google Scholar
Michaels, A.S. and Morelos, S., (1955) Polyelectrolyte adsorption by kaolinite Industrial Engineering Chemistry 47 1801–1809 10.1021/ie50549a029.Google Scholar
Mortimer, D.A., (1991) Synthetic polyelectrolytes — A review Polymer International 25 29–41 10.1002/pi.4990250107.Google Scholar
Okuda, S. Inoue, K. and Williamson, W.O., (1996) Negative surface charges of pyrophyllite and talc 1 31 41.Google Scholar
Ruehrwein, R.A. and Ward, D.W., (1952) Mechanism of clay aggregation by polyelectrolytes Soil Science 73 485–492 10.1097/00010694-195206000-00007.Google Scholar
Stutzmann, T.h. and Siffert, B., (1977) Contribution to the adsorption mechanism of acetamide and polyacrylamide onto clays Clays and Clay Minerals 25 392–406 10.1346/CCMN.1977.0250604.Google Scholar
Theng, B.K.G., (1979) Formation and Properties of Clay-Polymer Complexes New York Elsevier Scientific Publishing Company 10.1016/S0166-2481(08)70111-9 362 pp.Google Scholar
Theng, B.K.G., (1982) Clay-polymer interactions: Summary and perspectives Clays and Clay Minerals 30 1–10 10.1346/CCMN.1982.0300101.Google Scholar
Van Olphen, H., (1977) An Introduction to Clay Colloid Chemistry 2nd New York John Wiley & Sons, Inc..Google Scholar