Magnetic compounds as coatings on polymer particles and magnetic properties of the composite particles

被引:32
作者
Shiho, H
Manabe, Y
Kawahashi, N
机构
[1] JSR Corp, Fine Elect Res Labs, Specialty Mat Lab, Yokkaichi, Mie 5108552, Japan
[2] JSR Corp, Mat Characterizat & Anal Lab, Yokkaichi, Mie 5108552, Japan
关键词
D O I
10.1039/a906180k
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Spherical micron-sized polymer particles coated with magnetite have been prepared by a new method consisting of a two step process, in which iron compounds are coated on a micron-sized polymer core by controlled hydrolysis of FeCl3 in the presence of urea, poly(vinylpyrrolidone) and hydrochloric acid. The thickness of the coating layer could be altered by adjusting the amount of FeCl3 added to the system. Magnetic particles were obtained by treating the coated powders with hydrogen at moderate temperatures. The chemical composition and morphology of the coating layer, and the resulting magnetic properties varied with the calcination conditions.
引用
收藏
页码:333 / 336
页数:4
相关论文
共 11 条