Is Fe Sponge Magnetic

Abstract.Magnetically driven super-hydrophobic materials were prepared by fe 3 o 4 nanoparticles and stearic acid, which were deposited on the surface of polyurethane sponges.The presence of the fe 3 o 4 nanoparticles makes the sponge have the magnetic, and the micro-nano hierarchical structure and hydrophobic functional groups lead to the sponge have excellent superhydrophobicity.