Synthesis of Hydrogel Nanocomposites Based on Partially Hydrolyzed Polyacrylamide, Polyethyleneimine, and Modified Clay
Kaique A. B. Pereira, Kelly Lúcia Nazareth Pinho de Aguiar, Priscila F. Oliveira, Beatriz Martins Vicente, Lucas G. Pedroni, Claudia R. E. Mansur
Abstract
') and durability in the studied conditions (stable at 30 days) than conventional ones (HPAM/PEI), indicating the dispersion and reinforcing effect of clay. The functional groups of these hydrogels were confirmed by FTIR, and TGA demonstrated the structural reinforcement due to the presence of the clays, which had lower weight loss than the conventional hydrogel. The hydrogel morphologies were analyzed by SEM, and the results corroborated with those obtained by TGA, indicating better structural reinforcement when using organophilic clay.
Topics & Concepts
Self-healing hydrogelsPolyacrylamideThermogravimetric analysisFourier transform infrared spectroscopyChemical engineeringMaterials scienceBentoniteNanocompositePolymerPolymer chemistryComposite materialEngineeringEnhanced Oil Recovery TechniquesHydraulic Fracturing and Reservoir AnalysisHydrogels: synthesis, properties, applications