纳米TiO_2的表面改性及其分散性研究  

Study on surface modification and dispersion behavior of nanosized TiO_2

作　　者：亓学奎[1] 王欣欣[1] 杨华[1] 曲晶明 

机构地区：[1]北京市理化分析测试中心,北京100089

出　　处：《化工新型材料》2015年第11期148-150,共3页New Chemical Materials

基　　金：北京市科学技术研究院萌芽计划(20140426);国家自然科学基金(21207007);北京市科技新星计划(Z121103002512035)

摘　　要：利用硅烷偶联剂KH550对纳米TiO2进行了表面改性。红外光谱(FT-IR)、热失重(TGA)和透射电镜(TEM)的测试结果表明KH550成功接枝到纳米TiO2表面。沉降实验和紫外可见光分析结果表明,接枝了KH550的纳米TiO2,同时具有亲水性和亲油性,在乙醇中具有更好的分散稳定性。The surface modification of nano-TiO2 with silane coupling reagent KH550 was studied.The prepared samples were characterized by FT-IR,TG and TEM.The results indicated that KH550 was successfully grafted onto the surface of nano-TiO2.The results of sedmintation experiment and UV-Vis analysis showed that nano-TiO2 grafted with KH550 had both hydrophilicity and lipophilicity,and had better dispersion and stability in the ethanol solvent than that unmodified.

关 键 词：纳米TIO2 表面改性 分散稳定性 

分 类 号：TB383.1[一般工业技术—材料科学与工程]