本論文旨在探討將金屬有機骨架材 (MOF) 與高分子混合後之MOF複合材料 (MOF複材),透過MOF擁有的孔洞結構純化劣質液晶,使劣化液晶的電學特性能有效地恢復。 研究結果顯示,純MOF材料能夠吸附相較於其本身重量1倍多的水氣,利用純MOF材料處理劣化液晶,能使液晶之電性有明顯的回復。而在MOF與高分子混合物中,若有添加陰電性材料AMPS或陽電性材料VBTA,則由介電頻譜術及電壓保持率等量測,證實MOF複材能夠提升24小時處理時間內的液晶水氣吸附效率。 改變陰陽電性材料的添加量,可使MOF複材的純化效果達到最佳,有助於降低劣化液晶中的離子雜質,使其得以再次使用,達到環保的效果。
This thesis focuses on effectively recovering the electrical property of degraded liquid crystals (LCs) by the porous metal–organic framework (MOF) /copolymer composites. The research result shows that the electrical property of degraded LCs can be recovered by MOF alone. Moreover, by adding the electronegative material AMPS or electropositive material VBTA into MOF/polymer mixture, according to the results of dielectric spectroscopy and voltage holding ratio (VHR) measurement, the water adsorption efficiency increases within 24 hours. Finally, fine tuning the amount of AMPS and VBTA, we obtain the optimized MOF/polymer mixture for purification of a degraded LC, and the treated (i.e., purified) LC is reusable.