胆甾相液晶色彩调制的研究性实验设计  

Design of research experiment for cholesteric liquid crystal color modulation

作　　者：郑桂丽[1] 张辉[1] 张雨菡 李志广[1] 张艳君[1] ZHENG Guili;ZHANG Hui;ZHANG Yuhan;LI Zhiguang;ZHANG Yanjun(School of Science,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学理学院,天津300401

出　　处：《实验室科学》2024年第4期18-23,共6页Laboratory Science

基　　金：教育部产学合作协同育人项目(项目编号:201902282023,123093284,220601318275255,220702116282701);河北工业大学本科教育教学改革研究项目(项目编号:201904014,201904040,201903006);河北省高等教育学会高等教育科学研究课题(项目编号:GJXH2019-019)。

摘　　要：胆甾相液晶的螺距能随材料配比、温度、外加电场等发生改变,进而对外界光进行调制。针对胆甾相液晶温致变色等现象,设计了研究性实验“胆甾相液晶色彩调制的研究性实验设计”,探究了胆甾相液晶材料的清亮点、织构、螺距和选择性反射随手性剂浓度和温度的变化规律。该实验流程完整,涉及材料配制、光学测量和性能检测,并将理论与实际应用相结合,有助于激发学生对温致变色材料的研究兴趣,培养学生创新性实验方案设计能力。The pitch of cholesteric liquid crystal can change with the material ratio,temperature and external electric field.This change can modulate the external light.In view of the thermochromic phenomenon of cholesteric liquid crystal,a research experiment“design of research experiment for cholesteric liquid crystal color modulation”was designed.The changes of clearning point,texture,pitch and selective reflection of cholesteric liquid crystal materials with chiral agent concentration and temperature were explored.The experimental process is complete,and involving material preparation,optical measurement and performance testing.The experiment combines theory with practical application,which helps to stimulate the interest of students in thermochromic materials and cultivate the innovative design ability of students in experiment.

关 键 词：实验设计 胆甾相液晶 手性剂浓度 温度响应 

分 类 号：O469[理学—凝聚态物理]