PREPARATION OF COMPOSITE MAGNETIC MICROSPHERES BY REACTIVE BLENDING

Xiao-xia Cai; Guo-zhang Wu

doi:10.1007/s10118-011-1061-7

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PREPARATION OF COMPOSITE MAGNETIC MICROSPHERES BY REACTIVE BLENDING

PAPER | Updated：2021-06-21

- PREPARATION OF COMPOSITE MAGNETIC MICROSPHERES BY REACTIVE BLENDING
- Chinese Journal of Polymer Science Vol. 29, Issue 5, Pages: 580-585(2011)
- Affiliations：
  
  Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science & Engineering, East China University of Science & Technology, Shanghai 200237, China
- Author bio：
  
  **Guo-zhang Wu (吴国章), E-mail: wgz@ecust.edu.cn
- Funds：
- DOI：10.1007/s10118-011-1061-7
  CLC：
- Received：17 September 2010，
  
  Revised：2010-10-27，
  
  Accepted：16 November 2010，
  
  Published：2011
- Accepted：
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Xiao-xia Cai, Guo-zhang Wu. PREPARATION OF COMPOSITE MAGNETIC MICROSPHERES BY REACTIVE BLENDING[J]. Chinese Journal of Polymer Science, 2011, 29(5): 580-585.
DOI：

Xiao-xia Cai, Guo-zhang Wu. PREPARATION OF COMPOSITE MAGNETIC MICROSPHERES BY REACTIVE BLENDING[J]. Chinese Journal of Polymer Science, 2011, 29(5): 580-585. DOI： 10.1007/s10118-011-1061-7.

摘要

Abstract

A novel method for preparation of polymer-based magnetic microspheres was proposed by utilizing melt reactive blending

which was based on selective location of Fe

nanoparticles in PA6 domains of polystyrene (PS)/polyamide 6 (PA6) immiscible blends. The morphology of PA6/Fe

composite magnetic microspheres was studied by scanning electronic microscopy (SEM). The composite magnetic microspheres were spherical with a diameter range of 0.5-8 μm; the diameter was sharply decreased with a very narrow distribution by adding terminal maleic anhydride functionalized polystyrenes (FPS) for reactive blending. Transmission electron microscopy (TEM) and thermogravimetry analysis (TGA) results showed that most of Fe

was located in the PA6 microspheres. Magnetization data revealed the magnetite content of PA6/Fe

microspheres was about 32 wt% and the saturation magnetization could be up to 17.2 Am

/kg.

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