Ko, S. W. and Yang, M. S. and Choi, H. J. (2009) Adsorption of polymer coated magnetite composite particles onto carbon nanotubes and their magnetorheology. Materials Letters, 63 (11). 861 - 863.
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Official URL: http://www.sciencedirect.com/science/article/B6TX9...
Polymer coated nano-sized magnetite (Fe3O4) particles with multiwalled carbon nanotube (MWNT) nanohybrid were prepared by four step procedures in this study. Initially, magnetic particles were synthesized by a co-precipitation method with ammonium hydroxide and oleic acid, and then the produced particles were coated with polyacrylamide (PAAm). Finally PAAm coated magnetite particles (Mag-PAAm) were physically adsorbed onto multiwalled carbon nanotubes (MWNT) under ultrasonication. Transmission electron microscopy (TEM) was used to investigate the formation of Mag-PAAm-MW nanohybrids nanostructure, confirming that prepared Mag-PAAM particles were well adsorbed onto the surfaces of MWNT. In addition, MR characteristics of PAAm coated magnetite particles with MWNT (Mag-PAAm-MW) nanohybrids were investigated under six different external magnetic field strengths via a rotational rheometer, exhibiting typical MR behavior of yield stress and shear stress.
|Uncontrolled Keywords:||Nanocomposite; Magnetorheological fluid; Magnetite; MWNT|
|Subjects:||Material Science > Nanostructured materials|
|Deposited On:||10 Feb 2010 17:44|
|Last Modified:||10 Feb 2010 17:44|
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