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Effect of polymer matrix on the magnetic properties of polymer bonded magnets filled Fe3O4 nanoparticles

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Abstract

The effect of binder on the magnetic properties of polymer bonded magnets (PBMs) was studied. Five PBMs containing 5 wt% of Fe3O4 nanoparticles were prepared by melt extrusion in a twin screw extruder. The selecting bonders were polypropylene, nylon 66, high impact polystyrene, polycarbonate and acrylonitrile butadiene styrene. Compression moulded samples were prepared. TEM images show a good dispersion for nylon 66 comparing to other nanocomposites. Dynamic intersection frequency (ωc) which is related to crossing of G′ and G″ curves showed that there was a more homogeneity in the nylon 66 and PP nanocomposite comparing to that of other nanocomposites. The curves of saturation magnetization strength (Bs), residual magnetic flux density (Br), and coercive force (Hc) versus surface energy were plotted for different nanocomposites. The magnetic properties of nanocomposites had relationship with the rheological properties and also the surface energy of the matrices.

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Acknowledgments

The work described in this paper was supported by a grant from the Islamic Azad University, Gachsaran branch. The authors gratefully acknowledge the Research Vice Chancellor of Islamic Azad University of Gachsaran and his co-workers. The valuable results were obtained by dynamic rheometry.

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Authors and Affiliations

  1. Department of Chemical Engineering, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran

    S. Mousavian, D. Ashouri & H. Sadeghipour

  2. Department of Polymer Engineering, Shahreza Branch, Islamic Azad University, Shahreza, Iran

    H. Ebadi-Dehaghani & F. Jabbari

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  1. S. Mousavian
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  2. H. Ebadi-Dehaghani
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  3. D. Ashouri
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  4. H. Sadeghipour
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  5. F. Jabbari
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Correspondence to H. Ebadi-Dehaghani.

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Mousavian, S., Ebadi-Dehaghani, H., Ashouri, D. et al. Effect of polymer matrix on the magnetic properties of polymer bonded magnets filled Fe3O4 nanoparticles. J Polym Res 19, 9991 (2012). https://doi.org/10.1007/s10965-012-9991-5

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  • DOI: https://doi.org/10.1007/s10965-012-9991-5

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