NDLI: The Electro-Optical Properties and Adhesion Strength of Epoxy-Polymercaptan-Based Polymer Dispersed Liquid Crystal Films

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The Electro-Optical Properties and Adhesion Strength of Epoxy-Polymercaptan-Based Polymer Dispersed Liquid Crystal Films

Content Provider	MDPI
Author	Chen, Gang Hu, Wei Zhou, Le Zhang, Huimin Wang, Ling Zhang, Cuihong Sun, Jian Zhang, Lanying Yuan, Xiaotao Zhu, Siquan
Copyright Year	2021
Description	Polymer dispersed liquid crystal (PDLC) films were prepared by thermal polymerization-induced phase separation in epoxy/polymercaptan/liquid crystal (LC)/accelerator mixtures. The effects of the concentration of LC and accelerator, the curing temperature, and the structure of epoxy monomer on the electro-optical (E-O) properties and adhesion strength of the PDLC films were studied systematically via E-O, peel strength, DSC, IR, and gel measurements. It showed that different polymer structures and the properties of the polymer can be obtained by changing the compositions and the curing temperature, which had significant impacts on the E-O properties of the PDLC films. Meanwhile, the polymer matrix with high glass-transition temperature $(T_{g}$) and small pore size will improve the adhesion strength of the PDLC film, and these kinds of epoxy-polymercaptan-based PDLC films have better performance than traditional acrylate-based PDLC in the aspect of the adhesion strength. This work may provide some inspiration in preparing epoxy-polymercaptan-based PDLC films, which both have excellent E-O performance and good adhesion strength, towards roll-to-roll processes and large-scale flexible applications.
Starting Page	576
e-ISSN	20734352
DOI	10.3390/cryst11060576
Journal	Crystals
Issue Number	6
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-05-21
Access Restriction	Open
Subject Keyword	Crystals Polymer Science Polymer Dispersed Liquid Crystal Polymer Network Morphologies Electro-optical Properties Adhesion Strength
Content Type	Text
Resource Type	Article

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