Influence of chemical modification on the performance of Fe3O4 magnetic microspheres

Chin J Mater Res

2004, Vol. 18

Issue (5): 494-498 DOI:

Research Articles

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Influence of chemical modification on the performance of Fe3O4 magnetic microspheres

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同济大学

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;. Influence of chemical modification on the performance of Fe3O4 magnetic microspheres. Chin J Mater Res, 2004, 18(5): 494-498.

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Abstract Magnetic microspheres were prepared through partial reduction--precipitation method. The surface of particles was modified by silane--coupling agents. The structure and properties of these magnetic microspheres were characterized by X--ray, TEM, AFM, IR, etc. The magnetic nanoparticles modified by silane-- coupling agents present favorable dispersibility, responsibility to magnetism and resist against the corrosion of acid or alkali solution. The results of investigation on modified nanoparticles with different silane--coupling agents also indicate that the particles have multi functional organic groups on their surface, such as --OH, --NH$_{2}$, --NH, --C=O, --C=C.

Key words: composite Fe3O4 magnetic microspheres chemical modification silanecoupling agents

Received: 05 November 2004

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https://www.cjmr.org/EN/ OR https://www.cjmr.org/EN/Y2004/V18/I5/494

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