本研究分為三個部份做研究探討。首先,以水熱法(Hydrothermal)合成奈米級的人工合成層狀雙氫氧化物(layer double hydroxide , LDH),且嚐試在水熱反應過程中改變反應條件(溫度、時間、pH值、... 等) 來控制其粒子形成的大小與均一性。 第二部份將此可調控粒徑的Mg-Al type LDH摻混於向列型液晶(nematic liquid crystals) E7與感光型高分子單體中,藉由光聚合過程產生相分離而製備具有全像(holographic)光學特性的高分子分散液晶膜(Polymer-Dispersed Liquid Crystals films , PDLC films),研究探討其光學特性與未來應用性。 最後,將有機官能化的Mg-Al-K2 LDH與PMMA混成,藉由自由基聚合反應(Radical Polymrization)在層間發生的特性,製備出剝離型奈米級複合材料(Exfoliated Nanocomposites Materials),並研究探討其機械性質與分散性。
This research is divided into three parts. First, the synthesis of nano-scaled layered double hydroxide (LDH) and control of partical size by changing the reaction conditions such as temperature, time, pH . . . etc, by appling the hydrothermal method. Second, we study on optics characterization and apply to the holographic PDLC film, which are prepared by the photo-induced polymer separation method. The photo-induced polymer solution contained Mg-Al type LDH with E7. Finally, the mechanical properties and dispersion of Mg-Al-K2 LDH/PMMA exfoliated nanocomposites were discussed by the radical polymerization.