WANG Dong1 ， WANG Caili1 ， WANG Zhaohua2
（1. College of Mining Engineering， Taiyuan University of Technology， Taiyuan 030024， China; 2. Jiangxi H&J Mineral Fiber Tecnology Co.，Ltd.， Yichun 336400， China）
Abstract： To improve the electric conductivity of wollastonite, the surface modification of wollastonite particles was studied. Taking wollastonite powders as raw materials, the tin chloride pentahydrate and antimony chloride as coating modifiers, the nano-sized antimony-doped tin oxide wollastonite composite particles were obtained by the method of chemical deposition. The effect of different processing parameters on preparing composite powders was investigated. The composite was characterized by transmission electron microscope, EDX, whiteness apparatus, grain size analyzer, and surface area analyzer. The results show that the whiteness of wollastonite particles reduces from 91.7% to 90.5% . The particle size increases from 10.81 to 11.46 μm. The specific surface area is increased from 1.406 8 to 3.653 2 m2/g. The resistivity declines from 3.36×1010 to 0.85×105 Ω·cm.
Keywords: wollastonite; antimony-doped tin oxide; surface modification; electric conductivity
中图分类号：TQ320.4 文献标志码：A
文章编号：1008-5548（2015）01-0061-05
DOI:10.13732/j.issn.1008-5548.2015.01.013
收稿日期：2014-04-24， 修回日期：2014-05-11，在线出版时间：2015-03-02。
基金项目：太原理工大学校基金项目，编号：2013Z019。
第一作者简介：王栋（1988—），女，硕士研究生，研究方向为非金属矿加工与应用。电话：18334706679，E-mail：437418529@qq.com。
通信作者简介：王彩丽（1984—），女，讲师，博士研究生，研究方向为非金属矿加工与应用。电话：18835102943，E-mail: 229478584@qq.com。
