Rheological Evaluation of Acrylamide-based Terpolymer Nanocomposite Solution ‎Containing Silica Nanoparticles in the Presence of Different Salts
Paper ID : 1352-ICNS
Authors:
Ahmadreza Karimi1, Saeed Ghaderi2, Seyyedarash Haddadi3, Ahmad Ramazani S.A. *4
1Chemical and Petroleum Engineering Department, Faculty of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
2Chemical and Petroleum Engineering Department, Sharif University of Technology, Tehran, Iran
3School of Engineering, University of British Columbia, Kelowna V1V 1V7, Canada
4Sharif University of Technology
Abstract:
Due to the weak performance of commercially affordable natural and synthetic polymeric thickeners in high ‎temperatures and salinity, they fail to use in many applications especially in saline conditions with high ‎temperatures. In this work, a new salt and temperature resistance acrylamide/acrylic acid/styrene terpolymer ‎containing silica nanoparticles (PAAS) with self-associative properties were synthesized via a one-step inverse ‎emulsion polymerization and its applicability as a rheological modifier and thickener were investigated. The ‎characteristics of synthesized PAAS and its aqueous solutions were investigated using FT-IR, FE-SEM, and ‎rheometric mechanical spectrometry (RMS) analyses. The rheological investigations revealed that the shear ‎viscosity of aqueous increases with the increment of temperature (from 30 °C to 80 °C) and salt (NaCl, KCl and ‎MgCl2 ) concentration (from 5000 to 50000) ppm increased considerably. Such interesting rheological behavior ‎can be attributed to the modifying units including hydrophilic and hydrophobic monomers in the polymer chain ‎backbones which by increasing temperature as well as in presence of mono and bivalent ions, form a ‎complicated network, and a result the shear viscosity increased.‎
Keywords:
Nanocomposite, Acrylamide terpolymer, Rheological modifier, Salt-resistance.‎
Status : Abstract Accepted (Poster Presentation)