Study the effect of Ag nanoparticles and ZnO nanoparticles at different concentrations on the viscosity and surface tension of Polyacrylamide solutions. Iraqi Journal of Physics, [S. l.], v. 17, n. 40, p. 119–126, 2019. DOI: 10.30723/ijp.v17i40.412. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/412.. Acesso em: 1 may. 2024.