摘要
针对导电二氧化钛的应用要求,在金红石型二氧化钛浆料的基础上,表面包覆一层ATO(SnO2掺杂Sb2O3),制备ATO/TiO2复合粉体.以粉体体积电阻率作为评价指标,考察包膜的pH值、温度以及包膜剂放入的时间、五水氯化锡的加入量、m(SbCl3)/m(SnCl4·5H2O)及煅烧温度等制备工艺,并对导电机理进行了研究.实验得出较佳的制备条件:pH值为2、包膜温度60℃、加料时间3 h、w(SnCl4·5H2O)为60%、m(SbCl3)/m(SnCl4·5H2O)=0.1、煅烧温度600℃.金红石型二氧化钛浆料中加入ATO(SnO2掺杂Sb2O3),可克服产生静电的现象.同时有非常好的耐受性和导电性,助力功能型工业涂料的快速发展.
Abstract
According to the performance requirements of conductive titanium dioxide and on the basis of rutile titanium dioxide slurry,a layer of ATO(SnO2 doped Sb2O3)was coated on the surface of titanium dioxide for preparation of ATO/TiO2 composite powder.Taking the volume resistivity index of the powder as the evaluation index,the preparation processes such as coating pH value,coating temperature,coating agent addition time,w(SnCl4·5H2O),m(SbCl3)/m(SnCl4·5H2O)and calcination temperature were investigated,and the conductive mechanism was also studied.Better preparation conditions were obtained by experiments:pH =2,coating temperature is 60℃,the feeding time is 3 h,w(SnCl4·5H2O)=60%,m(SbCl3)/m(SnCl4·5H2O)=0.1,calcination temperature is 600℃.ATO(SnO2 doped Sb2O3)was added into rutile titanium dioxide slurry to overcome the phenomenon of static electricity.At the same time,it has very good tolerance and conductivity,supporting the rapid development of functional industrial coatings.
维普
万方数据