ABSTRACT To improve the electro-optical properties of polymer-dispersed liquid crystal (PDLC) film, the size and number of liquid crystal droplets were regulated by changing component, curing method, curing temperature and time, and so on, but the regulation reported in the literatures was constrained within the curing process. In this work, the size of liquid crystal droplets is regulated by quenching around the glass transition temperature (T g) at which the mobility of polymer chains changes dramatically. At the same time, the degree of supersaturation of liquid crystal molecules changes due to the decrease of temperature, thereby regulating the number of nucleation of liquid crystal droplets. Through the study of the above process, the effects of the size and number of liquid crystal droplets and the content of liquid crystal dissolved in the polymer network on the electro-optical properties of PDLC film are discussed. The research provides a new method to regulate the structure and properties of PDLC film aiming at the cured PDLC film, effectively overcoming the disadvantage of the regulation aiming at the curing process. Graphical abstract

中文翻译：

---

淬火工艺对聚合物分散液晶的结构和性能进行剪裁

摘要 为了提高聚合物分散液晶 (PDLC) 薄膜的电光性能，通过改变成分、固化方法、固化温度和时间等来调节液晶液滴的大小和数量，但该调节在文献被限制在固化过程中。在这项工作中，液晶液滴的大小是通过在聚合物链的迁移率急剧变化的玻璃化转变温度 (T g ) 附近淬火来调节的。同时，液晶分子的过饱和度因温度的降低而发生变化，从而调节液晶液滴的成核次数。通过对上述过程的研究，讨论了液晶液滴的大小和数量以及溶解在聚合物网络中的液晶含量对PDLC薄膜电光性能的影响。该研究提供了一种针对固化PDLC薄膜进行PDLC薄膜结构和性能调控的新方法，有效克服了针对固化过程调控的弊端。图形概要