欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用石英晶体微天平（quartz crystal microbalance,QCM）研究了电场对5CB液晶分子的近壁面层黏弹性的影响.对QCM结果的分析发现,电场作用对液晶的黏度影响分为两部分,通过建立含吸附膜的双层膜模型,分析了QCM的两部分结果,发现电场对近壁面吸附层及体相层的影响是不同的.根据QCM的双层膜模型,对近壁面层液晶分子的黏弹性及膜厚进行了定量的分析计算,结果表明5CB在石英晶体上电极附近有一层约100nm厚的近壁面吸附层,其复剪切黏度随电场强度的增加而减小,这与5CB液晶的体相黏度变化规律相反.
英文摘要：
The influence of electric field on near-interface 4-pentyl-4′-cyanobiphenyl（5CB） liquid crystal （LC） is investigated with quartz crystal microbalance （QCM）.The results of QCM show that the process of frequency shifting with electric field,which reflects the viscoelasticity change of 5CB,can be divided into two parts.Then the two-layer model of 5CB is proposed to illuminate the results of QCM,thereby indicating that the effect of electric field on near-interface layer is different from on bulk layer.Quantitative analysis is carried out with two-layer model of QCM,which indicates that there is a near-interface layer of about 100nm,adsorbed on the upper electrode of quartz crystal.The complex shear viscosity of the near-interface layer decreases with electric field strength increasing,which is opposite to the rule of bulk viscosity of 5CB.
同期刊论文项目
同项目期刊论文
Effects of Inhomogeneous Substrate and Molecular Orientation on the AC Electrowetting Behavior of Li
Growth of ultrathin diamond-like carbon films by C-60 cluster assembly: Molecular dynamics simulatio
Effect of ion beam bombardment on the properties of Ni films deposited on polyimide by ion beam assi
Monoatomic layer removal mechanism in chemical mechanical polishing process: A molecular dynamics st
Bubble generation in a nanoconfined liquid film between dielectric-coated electrodes under alternati
Formation and coalescence of linear chains in growth of nanostructured sp-sp(2) amorphous carbon fil
Effect of liquid properties on the growth and motion characteristics of micro-bubbles induced by ele
期刊信息
位置：