两种钛源对钛酸铝溶胶可纺性影响的对比研究  

Comparison of Effect of Two Titanium Sources on the Spinnability of Aluminum Titanate Sols

作　　者：江伟辉[1] 虞澎澎[1] 刘健敏[1] 谭训彦[1] 彭永烽[1] 

机构地区：[1]景德镇陶瓷学院材料科学与工程学院,景德镇333001

出　　处：《人工晶体学报》2009年第1期148-151,158,共5页Journal of Synthetic Crystals

基　　金：教育部"新世纪优秀人才计划"项目(NCET-05-0578);国家自然科学基金(No.50762005)资助项目

摘　　要：本文分别以钛酸丁酯的冰醋酸溶液和四氯化钛的乙醇溶液为钛源,硝酸铝的乙醇溶液为铝源,采用溶胶-凝胶法制备钛酸铝溶胶,通过分析溶胶的流变学特征和显微结构,研究了两种钛源对钛酸铝溶胶可纺性的影响。结果表明:以钛酸丁酯的冰醋酸溶液为钛源,制备的钛酸铝溶胶,由球形胶粒团聚体组成,呈非牛顿型流体的特性,溶胶不具有可纺性;而以四氯化钛乙醇溶液为钛源制备的溶胶,由线型聚合物构成,粘度为18.1~28 Pa.s,属于牛顿型流体,具有很好的可纺性。Two kinds of aluminum titanate sols were prepared by sol-gel method using Ti(OC4H9)4-acetic acid solution and TiCl4-ethanol solution as titanium source,Al(NO3)3·9H2O as aluminum source.The effect of two titanium sources on the spinnability of aluminum titanium sols was studied by analyzing the rheological character and microstructures of the prepared sols.The results show that when using Ti(OC4H9)4-acetic acid solution as titanium source,the sol,consisting of spherical colloidal aggregates,is characterized ...

关 键 词：溶胶-凝胶法 钛酸铝 可纺性 钛源 

分 类 号：TQ174.6[化学工程—陶瓷工业]