蜂窝陶瓷载体介孔TiO_2涂层的制备与表征  

Preparation and Characterization of Mesoporous Titanium Dioxide Coatings on Honeycomb Ceramics

作　　者：王家雷[1] 沈岳松[1] 祝社民[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《涂料工业》2008年第4期18-21,共4页Paint & Coatings Industry

摘　　要：通过溶胶凝胶工艺制备ATS复相蜂窝陶瓷表面介孔TiO2涂层。研究了以冰醋酸为螯合剂的钛溶胶的优化配制,利用超声波振动测定涂层的结合强度,协同XRD、SEM及BET等显微表征手段对TiO2涂层进行微观分析和表征。实验表明:所制备的溶胶胶凝时间长、负载量大、比表面积大,500℃焙烧时,TiO2主要为锐钛矿晶型,介孔TiO2涂层与ATS复相蜂窝陶瓷具有高的结合强度。Mesoporous titanium dioxide coatings deposited on ATS diphase honeycomb ceramics were prepared by sol-gel process. Titanium sol chelated by acetic acid was formulated. The bonding strength of titanium dioxide coatings was measured by ultrasonic vibration. The experimental results and the microscopic analysis of SEM, XRD, BET showed that the sol prepared has features of long time of gelling, large loading and high specific surface area when the coatings sintered at 500℃, the TiO2 mostly anatase. The TiO2 coatings have high bonding strength onto ATS diphase honeycomb ceramics.

关 键 词：溶胶-凝胶制备 蜂窝陶瓷 TIO2涂层 结合强度 

分 类 号：TQ630.6[化学工程—精细化工]