Surface modification of titanium dioxide for electrophoretic particles

作     者：PENG Xuhui LE Yuan BIAN Shuguang LI Woyuan WU Wei DAI Haitao CHEN Jianfeng 

作者机构：Key Lab for NanomaterialsMinistry of EducationBeijing University of Chemical TechnologyBeijing 100029China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2007年第1卷第4期

页      面：338-342页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：titanium dioxide surface modification dispersibility electrophoretic mobility 

摘      要：To prepare stable electrophoretic ink(E Ink)needs color particles to be uniformly dispersed in the organic ***,t-he modification of inorganic particle surface is *** this paper,Titanium dioxide modified by alumina has been *** surface composition and struc-tures of modified particles have been characterized by X-ray photoelectron spectrometer(XPS),X-ray diffractometer(XRD)and Fourier transform infrared spectrometer(FT-IR).The dispersibility and electrophoretic mobility of these particles in tetrachloroethylene(TCE)have been investigated by laser particle size analyzer,static sedimentation and elec-trophoretic *** of temperature,pH value and stirring rate on the dispersibility and the charge property of samples have been *** results indicate the settle time of modified TiO2 can last 120 h with the response time of 35 s under the optimized modifying conditions,in which temperature is 85℃-90℃,pH is 8-9 and stirring rate is 800 r·min^(−1).The dispersibility and electrophoretic mobility have been significantly improved,which means that the modified TiO2 is suitable for electrophoretic ink particles.