高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (11): 1986.

• 研究论文 • 上一篇    下一篇

原位诱导生长法制备单分散M型钡铁氧体亚微空心球

甘治平, 官建国   

  1. 武汉理工大学材料复合新技术国家重点实验室, 武汉430070
  • 收稿日期:2005-06-30 出版日期:2005-11-10 发布日期:2005-11-10
  • 基金资助:

    总装备部预研基金项目(批准号:51447020205QT6904);电磁兼容性国防科技重点实验室项目资助

In-situ Induced Growth to Mono-dispersed Hollow M-type Barium Ferrite Sub-micro-spheres

GAN Zhi-Ping, GUAN Jian-Guo   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China
  • Received:2005-06-30 Online:2005-11-10 Published:2005-11-10

摘要: 提出了一种制备单分散M型钡铁氧体空心球的新方法,即以碳酸胍表面改性的单分散聚(苯乙烯-共-丙烯酸)P(St-co-AA)乳胶粒子为模板,在其表面原位诱导钡铁氧体前驱物的定位并生长,以此获得壳层均匀致密的P(St-co-AA)/钡铁氧体前驱物核壳复合粒子,再经过热处理得到结构完整、成分单一的M型钡铁氧体空心球.

关键词: 空心球, 钡铁氧体, 聚(苯乙烯-共-丙烯酸)

Abstract: In this paper a new method for fabricating mono-dispersed hollow M-type barium ferrite sub-micro-spheres was provided.That is to say,templated on the poly(styrene-co-acrylic acid) latexes which are surface-modified in a guanidine carbonate solvent,the barium ferrite precursors are in-situ induced to anchor on the surface and grow up,so was prepared the poly(styrene-co-acrylic acid)/barium ferrite precursor core-shell composite particles with uniform compact shell.Further heat-treating to the involved particles leads to mono-dispersed intact-frame hollow M-type barium ferrite sub-micro-spheres with pure BaFe12O19crystal phase.

Key words: Hollow spheres, Barium ferrite, Poly(styreneco-acrylic acid)

中图分类号: 

TrendMD: