Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (06): 728-734.DOI: 10.6023/A1106202 Previous Articles     Next Articles

Special Topic


肖秋实, 许青青, 李良超, 仇海珍, 陈海峰, 许峰   

  1. 浙江师范大学物理化学研究所 化学系 金华 321004
  • 投稿日期:2011-06-20 修回日期:2011-11-01 发布日期:2011-12-14
  • 通讯作者: 李良超
  • 基金资助:

    国家自然科学基金(No. 21071125)和浙江省科技计划重大专项(No. 2010C11053)资助项目.

Preparation and Electrical-magnetic Properties of Zn0.6Mn0.2Ni0.2Fe2O4/poly(o-toluidine) Composites

Xiao Qiushi, Xu Qingqing, Li Liangchao, Qiu Haizhen, Chen Haifeng, Xu Feng   

  1. Department of Chemistry, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004
  • Received:2011-06-20 Revised:2011-11-01 Published:2011-12-14
  • Supported by:

    The project supported by the National Natural Science Foundation of China (No. 21071125) and the Science and Technology Key Project of Zhejiang Province (No. 2010C11053).

Zn0.6Mn0.2Ni0.2Fe2O4 ferrite and their poly(o-toluidine) composites (ZMNF/POT) were prepared by a chemical precipitation method and an in situ polymerization method, respectively. Their composition, structure, morphology, conductivity and magnetic properties were characterized by means of modern testing technology. The results showed that the ZMNF particles were covered well by the POT, the conductivity of composites were mainly attributed to the POT content, while their magnetic properties were related to the ZMNF content. In the range of 1~15 MHz, the dielectric loss and conductivity of the POT and ZMNF/POT composites had better consistency with their conductivity; the magnetic loss of the composites was quite considerable and superior to that of the magnetic type ZMNF, and reached the maximum when the content of ZMNF is 31.74 wt% in the composites. The composites are hoped to used as advancing microwave absorption and shielding materials.

Key words: poly(o-toluidine), Zn0.6Mn0.2Ni0.2Fe2O4, conductivity, magnetic properties, electro-magnetic loss