製作透明且連續之沸石膜與塊材; Preparation of transparent continuous zeolite film and monolith

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Title:	製作透明且連續之沸石膜與塊材;Preparation of transparent continuous zeolite film and monolith
Authors:	許哲豪;Cha-Hao Hsu
Contributors:	化學工程與材料工程研究所
Keywords:	透明沸石膜層;超級親水;超級疏水;方向結構性;透光性;preferred orientation;zeolite films;zeolite monolith;super-hydrophilc;Transparent;super-hydrophobic
Date:	2004-07-12
Issue Date:	2009-09-21 12:24:05 (UTC+8)
Publisher:	國立中央大學圖書館
Abstract:	本研究的主要目的，乃是利用矽沸石前趨物溶膠在硬質的密基材(玻璃試片、矽晶片與高分子塑膠試片，簡稱PES)上製作透明沸石膜層以及利用矽沸石前趨物溶膠當作起始物來合成透明沸石塊材。由原子力顯微鏡所觀察得到的結果，可以知道其沸石膜層是具有良好的透光性及方向結構性。而且藉由實驗條件的改變，可以平版基材上合成出超級疏水(接觸角大於130度)或超級親水(接觸角小於5度)的透明沸石膜層。也可以合成出對n-octane的接觸角小於5度與對純水的接觸角約在30度至40度左右的親油、親水膜。上述這些鍍膜可能應用於觸媒、感測器、半導體工業中低介電常數的鍍膜以及抗刮、抗腐蝕磨、硬鍍膜與低折射率的光學鍍膜。而矽沸石塊材所具有的良好透光度，可能應用於尖端的光學材料的領域中。由實驗中的結果發現位於奈米尺度大小的沸石結晶所組成的沸石膜層是可以具有良好的排列及方向性，而此特殊性質將使這些鍍膜可應用於尖端功能性的材料上的機會便大大地增加了。 Transparent zeolite films on dense substrates (glass, silicon wafer and PES ) and zeolite monolith were made from zeolite sol precursors. The coatings were transparent and in many cases showed a preferred orientation, as observed from AFM. By varying the experimental conditions, super-hydrophobic (contact angle with water greater than 120°) and super-hydrophilc (contact angle less than 5°) could be obtained. Organophilic coatings with water contact angle of 30 ° and 0° for n-octane, could also be prepared. These coatings have potential applications in catalysis, sensor and low-k layer in IC industry as well as for corrosion-resistant, hard-coat, optic and low-RI films. The monolith of silicalite-1 zeolite were optically transparent, which might be important for advanced optozeolitic materials. These results suggest that nanosize zeolites have potential to allow morphological design with applications for advanced functional materials.
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] Electronic Thesis & Dissertation

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