TiO2修饰空心玻璃微珠隔热涂料的制备及其性能表征  

Preparation and characterization of heat-insulted coatings containing TiO2 modified hollow glass beads

作　　者：陆洪彬[1] 冯春霞[1] 李文丹[1] 杨凤玲[1] 焦宝祥[1] 

机构地区：[1]盐城工学院材料工程学院江苏省生态环境材料重点实验室

出　　处：《化工新型材料》2010年第8期81-83,96,共4页New Chemical Materials

基　　金：江苏省生态环境材料重点实验室开放基金资助项目(XKY2009032)

摘　　要：基于核-壳材料设计原理,以Ti（SO4）2为钛源,通过非均相沉淀法制备TiO2修饰空心玻璃微珠,并以其为隔热填料配制隔热涂料;借助XRD和SEM对TiO2改性空心玻璃微珠的相组成和微结构进行了表征;系统研究了隔热涂料的热反射效果以及光催化降解甲醛的性能。当水解反应温度为60℃,pH值为7,煅烧温度为600℃,锐钛矿型TiO2壳层实现了在空心玻璃微珠表面的均匀淀积,利用其制备的隔热涂料的热反射比高达97.76%;该隔热涂料同时具有良好的光催化性能,其降解甲醛反应的半衰期为156.82min。Based on the principle of designing core-shell materials,titania modified hollow glass beads were fabricated using titanium sulfate as titania source by heterogeneous precipitation method,and the corresponding heat-insulated coatings were formulated using the modified hollow glass beads as insulated fillers.The phase composition and microstructure of the modified hollow glass beads were characterized by X-ray diffraction（XRD） and scanning electron microscopy（SEM）,and the reflecting heat and degrading formaldehyde properties of the heat-insulted coatings were investigated in details.The anatase shell formed a uniform precipitation layer on hollow glass beads when the hydrolization reaction temperature was 60℃,pH value was 7 and the calcined temperature was 600 ℃.The heat reflectance of the heat-insulated coatings containing the titania modified hollow glass beads reached 97.76%.Besides,the coating provided a good photocatalysis character,which imparted a half life of 156.82min to the reaction of formaldehyde degradation.

关 键 词：非均相沉淀 二氧化钛 空心玻璃微珠 热反射比 光催化 

分 类 号：TQ630.7[化学工程—精细化工]