炭黑/TiO_2双粒子电泳分散体系中聚异丁烯的稳定作用  

Stabilization of polyisobutylene in carbon black/TiO_2 electrophoretic display dispersion system

作　　者：赵谦[1] 李祥高[1] 王世荣[1] 张少奎[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《功能材料》2011年第3期471-473,478,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2008AA03A315;2008AA03A334)

摘　　要：以纳米炭黑和TiO2作为显示粒子,以四氯乙烯为分散介质制备电泳显示分散体系,研究了聚异丁烯对分散体系的稳定作用。结果表明,在12%(质量分数)的聚异丁烯存在下,能稳定地得到含量为10.38%(质量分数)的电泳粒子分散体系。该分散液在10～60℃的范围内保持粒子的平均粒径无变化;用该分散液制备的电泳显示器件表现了优异的显示效果,对比度达到26.3,响应时间为520ms。A kind of electrophoretic display dispersion liquid containing carbon black and titanium dioxide particles dispersed in tetrarchloroethylene was prepared,and stabilization of polyisobutylene in dispersion liquid system was studied.The results indicated that a stable electrophoretic particles dispersion system could be obtained when the weight of polyisobutylene is 12%,the content of electrophoretic particles in the dispersion liquid is 10.38wt%.The average particle size in dispersion system almost have no change at 10-60℃.This dispersion liquid was applied in preparation of the electrophoretic display device,and the device showed excellent display properties,with an image contrast of 26.3 and a response time of 520ms.

关 键 词：电泳显示 分散稳定性 聚异丁烯 分散体系 

分 类 号：TB34[一般工业技术—材料科学与工程] O648.14[理学—物理化学]