华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (8): 70-74.

• 材料科学与技术 • 上一篇    下一篇

ATO 包覆型导电纤维的制备

吴建青 颜东亮 汪永清 卢振亚   

  1. 华南理工大学 材料科学与工程学院,广东 广州 510640
  • 收稿日期:2006-12-18 出版日期:2007-08-25 发布日期:2007-08-25
  • 通信作者: 吴建青(1956-) ,男,教授,博士生导师,主要从事高性能陶瓷研究. E-mail:imjqwu@scut. edu.cn
  • 作者简介:吴建青(1956-) ,男,教授,博士生导师,主要从事高性能陶瓷研究.
  • 基金资助:

    广东省自然科学基金资助项目( 05006564) ;广东省科技攻关计划项目(2004810301007 )

Preparation of ATO-Coated Conductive Fiber

Wu lian-qing  Yan Dong-liang  Wang Yong-qing  Lu Zhen-ya   

  1. School of Materials Science and Engineering , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2006-12-18 Online:2007-08-25 Published:2007-08-25
  • Contact: 吴建青(1956-) ,男,教授,博士生导师,主要从事高性能陶瓷研究. E-mail:imjqwu@scut. edu.cn
  • About author:吴建青(1956-) ,男,教授,博士生导师,主要从事高性能陶瓷研究.
  • Supported by:

    广东省自然科学基金资助项目( 05006564) ;广东省科技攻关计划项目(2004810301007 )

摘要: 以莫来石纤维为基体,采用共沉淀法在其表面沉积一层锑掺杂氧化锡(ATO) ,制得导电纤维,并研究了制备工艺对导电纤维电阻率和颜色的影响.结果表明:热处理温度为600 - 1 000 ℃时制备的导电纤维的电阻率低于50Ω·cm ,与同条件下制备的ATO 的电阻率相差不大;热处理温度为1000℃以上时,由于莫来石纤维中的部分Al3+ 进入氧化锡晶格出现补偿效应,致使导电纤维的电阻率急剧下降;导电纤维的亮度L* 布大于同温度下制备的ATO 的亮度,而且差值都在10 个羊位以上;导电纤维与硫酸银标准样品的色差ΔE 小于10 个NBS.

关键词: 锑掺杂氧化锡, 导电纤维, 制备, 包覆, 颜色

Abstract:

Conductive fiher was prepared hy coating a layer of antimony-doped tin dioxide (ATO) on the surface of mullite fiher via the co-precipitation method. The influence of the preparation process on the electric resistivity and the color of the prepared conductive fiher was then investigated. The results show that (1) after heat treatment at 600 to 1 000 ℃ , the conductive fiher is of a resistivity less than 50Ω·cm , which is almost the same as that of the ATO prepared in the same conditions; (2) when the heating temperature is higher than 1000℃ , the resistivity of the conductive fiher ahruptly decreases due to the compensative effect resulting from the entry of a pa吐of Al3+ into the SnO2 lattice; (3) the lightness L * of the conductive fiher is higher than that of the ATO prepared at the same temperature , with a difference heing more than 10 units; and (4) the chromatic aherration ΔE between the conductive fiher and the standard harium sulfate sample is less than 10 NBS.

Key words: antimony-doped tin dioxide, conductive fiher, preparation, coating, color