Study on Polyvinly-Alcohol(PVA)/ Iron Oxide Black(Fe3O4) and Polyvinly-Alcohol(PVA)/ Iron Oxide Red(Fe2O3) Magnetic Sensitive Hydrogel
Iron oxide black and iron oxide red magnetic sensitive to polyvinly-alcohol hydrogel has been fabricated using physical cross-linking method. The mechanical properties and swelling characteristics have been studied for different content, magnetic sensibility were tested using the vibration sample magnetometer, experiment results show that iron oxide red hydrogel has better mechanical properties, Percentage of swelling and loss rate of water of the polyvinly-alcohol hydrogel decrease with the increasing of the magnetic particles content, the change tendency is very like, cross-linking is increased with performance the swelling performance decreasing; PVA and Fe3O4 has good response from the SEM photo and IR spectrogram; its magnetic properties is better.
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
S. D. Zhang et al., "Study on Polyvinly-Alcohol(PVA)/ Iron Oxide Black(Fe3O4) and Polyvinly-Alcohol(PVA)/ Iron Oxide Red(Fe2O3) Magnetic Sensitive Hydrogel", Advanced Materials Research, Vols. 287-290, pp. 2032-2035, 2011