Preparation and characterization of a polyvinylpyrrolidone water-based magnetic fluid / 南方医科大学学报
Journal of Southern Medical University
;
(12): 353-355, 2008.
Artigo
em Chinês
| WPRIM
| ID: wpr-293379
ABSTRACT
<p><b>OBJECTIVE</b>To prepare a stable water-based magnetic fluid.</p><p><b>METHODS</b>A 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.</p><p><b>RESULTS</b>The magnetic nanoparticles of homogeneously small size and water-based magnetic fluid were obtained, which had good dispersion in water with strong magnetism.</p><p><b>CONCLUSION</b>PVP can be used as a surfactant to stabilize the magnetic fluid.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Tensoativos
/
Propriedades de Superfície
/
Teste de Materiais
/
Compostos Ferrosos
/
Química
/
Povidona
/
Nanopartículas
/
Magnetismo
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2008
Tipo de documento:
Artigo
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