Rheological and thermal stability of interpenetrating polymer network hydrogel based on polyacrylamide/hydroxypropyl guar reinforced with graphene oxide for application in oil recovery

Abstract The purpose of the present work is to enhance thermal stability and rheological properties semi-interpenetrating polymer network (IPN) hydrogel based on partially hydrolyzed polyacrylamide/hydroxypropyl guar (HPAM/HPG) nanocomposite reinforced with graphene oxide (GO), at temperatures (200 240 °F) for use in oil recovery applications. FTIR spectra IPN hydrogels revealed interactions GO HPAM/HPG chains. An increase viscosity also observed from study. Moreover, its exhibited non-Newtonian behavior. decline was an temperature 200 °F but still higher than without GO. Dispersion through matrix evaluated by SEM morphology electrical conductivity. showed high stability, flow activation energy as compared Therefore, addition 0.1 wt.% suitable create a cross-linked solution improved which may be beneficial