表面活性剂对聚合物分散液晶光电性能的影响

张 凯; 杜 鑫; 李 儒; 阎 斌; 汪映寒

doi:null

您当前的位置：

首页 >

文章列表页 >

表面活性剂对聚合物分散液晶光电性能的影响

器件制备技术及器件物理 | 更新时间：2020-08-12

- 表面活性剂对聚合物分散液晶光电性能的影响
- Effect of Surfactant on Electro-Optical Property of Polymer Dispersed Liquid Crystal
- 液晶与显示 2010年25卷第1期页码：49-52
- 作者机构：
  
  四川大学高分子科学与工程学院高分子材料工程国家重点实验室,四川成都,610065
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O753+.2
- 收稿日期：2009-06-10，
  
  修回日期：1900-01-02，
  
  网络出版日期：2010-02-20，
  
  纸质出版日期：2010-02-20
- 稿件说明：
移动端阅览
张凯;杜鑫;李儒;阎斌;汪映寒. 表面活性剂对聚合物分散液晶光电性能的影响[J]. 液晶与显示, 2010,25(1): 49-52

ZHANG Kai;DU Xin;LI Ru;YAN Bin;WANG Ying-han. Effect of Surfactant on Electro-Optical Property of Polymer Dispersed Liquid Crystal[J]. 液晶与显示, 2010,25(1): 49-52
张凯;杜鑫;李儒;阎斌;汪映寒. 表面活性剂对聚合物分散液晶光电性能的影响[J]. 液晶与显示, 2010,25(1): 49-52 DOI：

ZHANG Kai;DU Xin;LI Ru;YAN Bin;WANG Ying-han. Effect of Surfactant on Electro-Optical Property of Polymer Dispersed Liquid Crystal[J]. 液晶与显示, 2010,25(1): 49-52 DOI：

摘要

为了调控聚合物分散液晶(PDLC)中聚合物基体和液晶微滴的界面作用

降低锚定能

以聚丙烯酸甲酯(PMA)为基体

E7为分散相

并加入了不同含量的硬脂酸(SA)表面活性剂

采用聚合物诱导相分离法制备了PDLC

并对PDLC的光电性能进行了测试。研究发现

PDLC的电光性能随着SA含量的增加而改善

但当SA的含量达到一定值后

液晶微滴出现"岛聚"现象

光电曲线出现一个转折点。实验结果表明

表面活性剂可以调控聚合物和液晶微滴的界面作用

降低锚定能

从而改善PDLC的光电性能。

Abstract

Polymer dispersed liquid crystal (PDLC) is a kind of new display material. It has a lot of advantages. Anchoring energy

as an important factor of PDLC

has a great influence on electro-optical properties. In this letter

a small amount of stearic acid (SA) was added into PDLC. With the increase of SA

the anchoring energy was reduced

which leads to a reduction in driving voltages and an improvement in the ON state transmittance. However

the ON state transmittance decreased when the concentration of SA exceeded 0.5%. Besides

with the decrease of anchoring energy

the hysteresis increased. It demonstrated that SA do reduced the anchoring energy and improved electro-optical properties of PDLC.

关键词

Keywords

references

. Spruce G, Pringle R D. Polymer dispersed liquid crystal(PDLC)films [J]. Electronics and Communication Engineering Journal, 1992,4(2): 91-100.

. Patnaik S S, Pachter R. Anchoring characteristics and interfacial interactions in polymer dispersed liquid crystal:A molecular dynamics study [J]. Polymer, 1999, 40(23):6507-6519.

. Higgins D A. Probing the mesoscopic chemical and physical properties of polymer-dispersed liquid crystal [J]. Advanced Materials, 2000,12(4):251-264.

. 马骥, 刘永刚, 胡立发. 交联剂对聚合物/液晶光栅的影响 [J]. 液晶与显示, 2005,20(4):273-277.

. Shim S S, Woo J Y, Kim K H, et al. Effects of surfactant and molecular weight of polyol on grating formation and switching of holographic PDLC [J]. Adv. Technol, 2008,19:1550-1557.

. Woo J Y, Kim B K. Surfactant effects on morphology and switching of holographic PDLCs based on polyurethane acrylates [J]. Chem. Phys. Chem., 2007,8:175-180.

. Nomura H, Suzuki S, Atarashi Y. Interfacial interaction between nematic liquid crystal and polymer in the compo-site film consisting of nematic liquid crystal and connected polymer microspheres [J]. Jpn. J. Appl. Phys., 1991,30(2):327-330.

. Klosterman J, Natarajan L V, Tondiglia V P, et al. The influence of surfactant in reflective HPDLC gratings [J]. Polymer, 2004,45:7213-7218.

. 任娇燕,冯亚云,崔宏青,等. 采用复合催化剂体系制备PDLC及其性能研究 [J]. 液晶与显示, 2008,23(1): 39-42.

. 郭福忠,郑致刚,宋静,等. 表面活性剂含量对全息聚合物分散液晶光栅电光性能的影响 [J]. 光子学报, 2008,37(9):1730-1733.

. Liu Y J, Sun X W, Dai H T, et al. Effects of surfactant on the electro-optical properties of holographic polymer dispersed liquid crystal bragg gratings [J]. Optical Materials, 2005,27:1451-1455.

. 宋静,刘永刚,郑志刚,等. 增塑剂对全息聚合物分散液晶光栅衍射性能的影响 [J]. 液晶与显示, 2008,23(5):545-548.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据