Cheng Bin, Zhu Yurui, Chen Zuyao, Zhou Gangyi, Jiang Wanquan, Wang Cuiying, Zhang Peiqiang. Polymer Modification of Ultrafine Metal Iron Particles and Magnetorheological Properties of Their Suspensions[J]. Chinese Journal of Chemical Physics , 2000, 13(2): 215-219. doi: 10.1088/1674-0068/13/2/215-219
Citation: Cheng Bin, Zhu Yurui, Chen Zuyao, Zhou Gangyi, Jiang Wanquan, Wang Cuiying, Zhang Peiqiang. Polymer Modification of Ultrafine Metal Iron Particles and Magnetorheological Properties of Their Suspensions[J]. Chinese Journal of Chemical Physics , 2000, 13(2): 215-219. doi: 10.1088/1674-0068/13/2/215-219

Polymer Modification of Ultrafine Metal Iron Particles and Magnetorheological Properties of Their Suspensions

doi: 10.1088/1674-0068/13/2/215-219
  • Received Date: 1998-10-26
  • Monodispersed polymer modified metal iron particles have been synthesized by y-ray radiation. Selecting cetyltrimethyl ammonium bromide (CTAB), sodium dodecyl sulfonate (SDS),Tween-80, TritonX-200 and OP-10 as emulsifiers respectively. Several emulsions containing organic monomers and iron particles were obtained. By comparing stability of these emulsions,we selected a more suitable emulsifier, TritonX-200. Polymer modified iron particles were characterized by XRD, TEM and IR. In addition, pure iron particles and polymer modified iron particles were dispersed into mineral oil respectively to form magnetorheological fluids and their differences in suspension properties have also been investigated. The differences in magnetorheological measurement between suspension of Fe-copolymer particles and Fe3O4-PMMA composite particles have been studied. Experimental results showed that this kind of suspension with Fe-copolymer particles dispersed will become a new type of magnetorheological materials.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Polymer Modification of Ultrafine Metal Iron Particles and Magnetorheological Properties of Their Suspensions

doi: 10.1088/1674-0068/13/2/215-219

Abstract: Monodispersed polymer modified metal iron particles have been synthesized by y-ray radiation. Selecting cetyltrimethyl ammonium bromide (CTAB), sodium dodecyl sulfonate (SDS),Tween-80, TritonX-200 and OP-10 as emulsifiers respectively. Several emulsions containing organic monomers and iron particles were obtained. By comparing stability of these emulsions,we selected a more suitable emulsifier, TritonX-200. Polymer modified iron particles were characterized by XRD, TEM and IR. In addition, pure iron particles and polymer modified iron particles were dispersed into mineral oil respectively to form magnetorheological fluids and their differences in suspension properties have also been investigated. The differences in magnetorheological measurement between suspension of Fe-copolymer particles and Fe3O4-PMMA composite particles have been studied. Experimental results showed that this kind of suspension with Fe-copolymer particles dispersed will become a new type of magnetorheological materials.

Cheng Bin, Zhu Yurui, Chen Zuyao, Zhou Gangyi, Jiang Wanquan, Wang Cuiying, Zhang Peiqiang. Polymer Modification of Ultrafine Metal Iron Particles and Magnetorheological Properties of Their Suspensions[J]. Chinese Journal of Chemical Physics , 2000, 13(2): 215-219. doi: 10.1088/1674-0068/13/2/215-219
Citation: Cheng Bin, Zhu Yurui, Chen Zuyao, Zhou Gangyi, Jiang Wanquan, Wang Cuiying, Zhang Peiqiang. Polymer Modification of Ultrafine Metal Iron Particles and Magnetorheological Properties of Their Suspensions[J]. Chinese Journal of Chemical Physics , 2000, 13(2): 215-219. doi: 10.1088/1674-0068/13/2/215-219

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