作　　者： ; ; ; ;

机构地区： 华南理工大学材料科学与工程学院

出　　处： 《华南理工大学学报（自然科学版）》 2007年第8期70-74,共5页

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1 000℃以上时,由于莫来石纤维中的部分A l3+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*大于同温度下制备的ATO的亮度,而且差值都在10个单位以上;导电纤维与硫酸钡标准样品的色差ΔE小于10个NBS. Conductive fiber was prepared by coating a layer of antimony-doped tin dioxide （ATO） on the surface of mullite fiber via the co-precipitation method. The influence of the preparation process on the electric resistivity and the color of the prepared conductive fiber was then investigated. The results show that （ 1 ） after heat treatment at 600 to 1000℃ , the conductive fiber is of a resistivity less than 50 Ω·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 fiber abruptly decreases due to the compensative effect resulting from the entry of a part of Al^3＋ into the SnO2 lattice ; （3） the lightness L＊ of the conductive fiber is higher than that of the ATO prepared at the same temperature, with a difference being more than 10 units; and （4） the chromatic aberration AE between the conductive fiber and the standard barium sulfate sample is less than 10 NBS.

关 键 词： 锑掺杂氧化锡 导电纤维 制备 包覆 颜色

领　　域： [一般工业技术]