Zn0.6Mn0.2Ni0.2Fe2O4/聚邻甲基苯胺复合物的制备和电磁性能

doi:10.6023/A1106202

化学学报 ›› 2012, Vol. 70 ›› Issue (06): 728-734.DOI: 10.6023/A1106202 上一篇下一篇

研究论文

Zn_0.6Mn_0.2Ni_0.2Fe₂O₄/聚邻甲基苯胺复合物的制备和电磁性能

肖秋实, 许青青, 李良超, 仇海珍, 陈海峰, 许峰

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 Zn_0.6Mn_0.2Ni_0.2Fe₂O₄/poly(o-toluidine) Composites

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

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).

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摘要/Abstract

用化学沉淀法和原位聚合法分别制备了Zn_0.6Mn_0.2Ni_0.2Fe₂O₄ 铁氧体纳米粒子和Zn_0.6Mn_0.2Ni_0.2Fe₂O₄ 铁氧体/聚邻甲基苯胺复合微粒(ZMNF/POT). 通过现代测试技术表征了样品组成、结构、形貌和电-磁性能. 结果表明, POT 对ZMNF 粒子具有较好的包覆作用; 复合物电导率与POT 的含量成正比, 而磁性能与ZMNF 粒子的含量相关; 在1～15MHz 频段内, POT 和ZMNF/POT 复合物的介电损耗与其电导率表现出一致性; 复合物具有可观的磁损耗, 比磁介质型ZMNF 的大, 且ZMNF 含量为31.74 wt%的复合物的磁损耗最大, 有望作为屏蔽和吸收电磁波材料获得应用.

关键词: 聚邻甲基苯胺, Zn_0.6Mn_0.2Ni_0.2Fe₂O₄, 电导率, 磁性能, 电磁损耗

Zn_0.6Mn_0.2Ni_0.2Fe₂O₄ 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), Zn_0.6Mn_0.2Ni_0.2Fe₂O₄, conductivity, magnetic properties, electro-magnetic loss

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肖秋实, 许青青, 李良超, 仇海珍, 陈海峰, 许峰. Zn_0.6Mn_0.2Ni_0.2Fe₂O₄/聚邻甲基苯胺复合物的制备和电磁性能[J]. 化学学报, 2012, 70(06): 728-734.

Xiao Qiushi, Xu Qingqing, Li Liangchao, Qiu Haizhen, Chen Haifeng, Xu Feng. Preparation and Electrical-magnetic Properties of Zn_0.6Mn_0.2Ni_0.2Fe₂O₄/poly(o-toluidine) Composites[J]. Acta Chimica Sinica, 2012, 70(06): 728-734.

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Zn_0.6Mn_0.2Ni_0.2Fe₂O₄/聚邻甲基苯胺复合物的制备和电磁性能

Preparation and Electrical-magnetic Properties of Zn_0.6Mn_0.2Ni_0.2Fe₂O₄/poly(o-toluidine) Composites

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