Preparation and deflection characterization of intelligent polymer gels controlled by magnetic fields

Fe₃O₄ nanoparticles can be prepared by chemical co-precipitation. By using them in artificial muscle, it can be droved by magnetic field. Characterization was also performed by X-ray Diffraction (XRD), Transmission Electron Microscope (TEM) and Vibration Showpiece Magnetor (VSM). Fe₃O₄ is dispersed in polyvinyl alcohol (PVA) hydrogel to make new type intelligent hydrogel - magnetic field sensitive polymer gels. Observe gel´s surface through EM (Electron Microscope). IR (Infrared) of PVA and Fe₃O₄ nanoparticles magnetic sensitive polymer gels is detected. The different proportion Fe₃O₄ and Fe₃O₄ magnetic field sensitive gels were tested in magnetic field for observing their deflection. Utilize the characterization of different deflection to make a finger of robot by changing the proportion of Fe₃O₄.