Preparation and characterization of polymer-dispersed liquid crystal (PDLC) with different cation exchange capacity (CEC) clays

Tsung Yen Tsai*, Chun Yi Lee, Chen Ju Lee, Wei Chiang Chang, Wei Lee, Po Cheng Chen

*Corresponding author for this work

研究成果: Article

12 引文 斯高帕斯(Scopus)

摘要

This work describes the morphology and electro-optical properties of polymer-dispersed liquid crystals (PDLCs). These composites consist of the nematic liquid crystal E7, filled with different types of inorganic nanoparticles in Norland optical adhesive (NOA65) polymer matrices. Natural clays CL120 (trade name: CN-C34 with higher cation exchange capacity CEC) and CL42 (trade name: PK802 with lower CEC) are used as various inorganic nanofillers. Wide angle X-ray diffraction was exploited to examine the dispersion of the inorganic nanoparticles in PDLCs. The morphology of liquid crystal droplets in PDLCs is investigated by the field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM) as well. Transmittance vs. applied voltage is measured to study the electro-optical properties and the response times of the PDLCs. It is suggested that doping with inorganic nanoparticles in PDLCs effectively reduces the driving voltage and improves the electro-optical characteristics.

原文English
頁(從 - 到)595-599
頁數5
期刊Journal of Physics and Chemistry of Solids
71
發行號4
DOIs
出版狀態Published - 1 四月 2010

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