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.
In this paper a new method for fabricating mono-dispersed hollow M-type barium ferrite sub-microspheres 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 monodispersed intact-frame hollow M-type barium ferrite sub-micro-spheres with pure BaFe12O19crystal phase.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第11期1986-1989,共4页
Chemical Journal of Chinese Universities
基金
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