Preparation and characterization of a polyvinylpyrrolidone water-based magnetic fluid.
- Author:
Jian-feng XIE
1
;
Yang-de ZHANG
;
Zhao-wu ZENG
;
Xiao-li WANG
;
Xing-yan LIU
;
Wei-hua ZHOU
Author Information
- Publication Type:Journal Article
- MeSH: Ferrous Compounds; chemistry; Magnetics; Materials Testing; Nanoparticles; chemistry; Povidone; chemistry; Surface Properties; Surface-Active Agents; chemical synthesis; chemistry
- From: Journal of Southern Medical University 2008;28(3):353-355
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo prepare a stable water-based magnetic fluid.
METHODSA water-based magnetic fluid was prepared by addition of polyvinylpyrrolidone (PVP) as the coating agent for the magnetic particles. After preparation of Fe3O4 by co-precipitation method, PVP was added for its coating, followed by ultrasonic agitation and purification.
RESULTSThe magnetic nanoparticles of homogeneously small size and water-based magnetic fluid were obtained, which had good dispersion in water with strong magnetism.
CONCLUSIONPVP can be used as a surfactant to stabilize the magnetic fluid.
