详细信息
PET聚酯缩聚用改性二氧化钛催化剂的制备研究
Study of Synthesis and Application of Surface Modified Titanium Dioxide for Polycondensation Catalysis of PET
文献类型:期刊文献
中文题名:PET聚酯缩聚用改性二氧化钛催化剂的制备研究
英文题名:Study of Synthesis and Application of Surface Modified Titanium Dioxide for Polycondensation Catalysis of PET
作者:顾宇辉[1];古宏晨[2];徐宏[2];韩哲文[1]
机构:[1]华东理工大学材料科学与工程学院,上海200237;[2]上海交通大学纳米科学与技术工程中心,上海200030
年份:2004
卷号:33
期号:4
起止页码:25
中文期刊名:合成纤维
外文期刊名:Synthetic Fiber in China
收录:CSTPCD;;北大核心:【北大核心2000】;
基金:科技部"十五"攻关项目(2001BA310A09);上海市纳米专项(0159NM037;0213NM002)。
语种:中文
中文关键词:硅烷偶联剂;改性二氧化钛;催化剂;制备;聚酯;缩聚;聚对苯二甲酸乙二醇酯;对苯二甲酸;乙二醇;氧化锑;醋酸锑
外文关键词:Polyester Catalysis Titanium dioxide
摘要:设计并制备了一种表面硅烷偶联剂KH560改性的二氧化钛,并用红外、透射电镜、XRD粉末衍射和N2吸附比表面积对其进行表征。该催化剂是由许多很小的无定形二氧化钛粒子组成的团聚体,其表面富含大量的羟基。该催化剂较Sb2O23的催化活性高许多,而且所得产品的色相较未改性的二氧化钛有明显的改善。
A new type of silane reagent KH560 modified titanium dioxide was prepared by hydrogen of titanium alcohoxide, and characterized by IR spectroscopy, transmition electron microscopy( TEM, HREM ), powder X-ray diffraction and N2 adsorpation. The titanium dioxide was used as polycondensation catalyst of poly- ethyleneterephthalate (PET) and shovved more activity than antimony-based catalysts(Sb2O3). Furthermore, the PET with silane coupling reagent KH560 modified titanium dioxide showed higher whiteness than that titanium dioxide without modification.
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