全文下载：2012030233
宿梅香1， 李少香2*， 和海青1， 赵君3
（1. 青岛科技大学 高分子科学与工程学院，山东 青岛 266042； 2. 青岛科技大学 环境与安全工程学院， 山东 青岛 266042；
3. 青岛海洋化工研究院，山东 青岛 266071）
摘要: 以硫酸钛为钛源，氢氧化钠为沉淀剂，采用非均相沉淀法制得了二氧化钛包覆空心玻璃微珠，用扫描电镜（SEM）和X射线衍射仪等表征了所得产品。分析了不同温度、pH值、煅烧温度、硫酸钛用量等各种工艺参数对产物的调控作用。实验结果表明，反应温度和pH等参数对产物的形貌和结构有重要影响。水解温度等于60 ℃，pH等于6~7，煅烧温度为700 ℃时成功地在空心玻璃微珠表面均匀包覆了一层锐钛型二氧化钛。硫酸钛溶液用量为40 g时，产物表面包覆厚度大约为0.3 μm，隔热效果最好。
关键词: 二氧化钛； 包覆； 空心玻璃微珠
中图分类号: TQ 637 文献标志码： A
Preparation and Characterization of Hollow Glass Microspheres Coated with Titanium Dioxide
SU Mei-xiang1, LI Shao-xiang1, HE Hai-qing1, ZHAO Jun3
(1.CollegeofPolymerScience and Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China;
2.CollegeofEnvironmentand Safety Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China;
3. Qingdao Marine Chemicals Research Institute,Qingdao266071,China)
Abstract: Hollow glass microspheres coated with titanium dioxide were prepared using titanium sulfate as precursor and sodium hydroxide as precipitant. The products were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The effects of varied process parameters, such as temperature, pH value, calcinning, quantity of titanium sulfate were investigated.The results showed that parameters of process, such as temperature,pH value seriously affects the morphology and structure of the coated products. The anatase TiO2 distributed uniformly on the surface of hollow glass microspheres on the condition of hydrolysis at temperature 60 ℃, pH value of 6—7, calcining temperature at 700 ℃. When the titanium sulfate solution dosage is 40 g，the surface coating thickness on the product surface is about 0.3 μm and the heat insulation effect is the best.
Key words: titanium dioxide; coated; hollow microsphere
收稿日期：2011-09-23
作者简介： 宿梅香(1985—)，女，硕士研究生. *通信联系人.
