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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
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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.
作者 亓学奎 王欣欣 杨华 曲晶明
机构地区 北京市理化分析测试中心
出处 《化工新型材料》 CAS CSCD 北大核心 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)
关键词 纳米TIO2 表面改性 分散稳定性 nano-TiO2 surface modification dispersion stability
分类号 TB383.1 [一般工业技术—材料科学与工程]
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参考文献10

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化工新型材料
2015年 第11期

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