本研究主要在探討如何設計與製備出一可調控潤濕性及黏著性的透明表面。運用靜電逐層組裝技術在玻璃基板上製備出兼具透明及超親水的二氧化矽奈米粒子薄膜，首先控制本體層數以創造出不同的粗糙表面結構，並觀察在粗糙度的變化下，不同疏水改質程度對其潤濕性及黏著性質的影響。實驗結果顯示粗糙的SiO2奈米粒子薄膜在不同程度的疏水改質對其表面有著極大的影響，所以可展現出多樣化的濕潤性及黏著性，而在同一疏水改質程度下，不同粗糙的表面結構也可得到不同的潤濕性與黏著性。此外，比較碳氟鏈和碳氫鏈矽烷對潤濕性及黏著性的影響，從實驗結果得知，碳氟鏈矽烷可得到較高的接觸角和較低的遲滯接觸角，也就是擁有比較強的疏水性質；而在不同疏水改質程度下，遲滯接觸角和黏著力的趨勢則很相像，從低到高的改質程度皆是由小變大，再由大至小之極大的變化，然而因改質速度較快會在高改質程度時會持平甚至微幅上升。之後本研究製作潤濕圖 (wetting diagram) 去進行潤濕行為模式的分析，最後提出一可能機制與潤濕行為模式做結合，解釋平坦和粗糙表面在疏水改質程度下會有如此截然不同的潤濕行為和黏著性質。

This work aims at how to design and fabricate the transparent surfaces with tunable water wettability and adhesion. An electrostatic layer-by-layer (ELbL) assembly process was utilized to fabricate transparent and superhydrophilic nanoparticulate thin films on glass substrates, and controlling the numbers of body layer creates the different rough surface morphology in this assembly process. Degree of silanization effect on wettability and adhesion were then observed in the variation of roughness. Experiments show the rough SiO2 nanoparticulate thin films have significant influence on the surfaces in different degree of silanization, so they can perform a variety of wettability and adhesion. Different rough surface structure can also get tunable wettability and adhesion in the same degree of silanization. Furthermore, we compare the wettability and adhesion of fluorinated silane with alkylsilane. Experiments show fluorinated silane can get higher contace angle and lower contact angle hysteresis, and it can also possess more powerful hydrophobicity. Surface modification by these two silanes can acquire similar trend of the wettability and adhesion in the degree of silanization. The hysteresis and adhesion exihibit extreme variation which goes through a maximum and drop off at higher degree of silanization on SiO2 nanoparticulate thin film. But the rate of modification by using fluorinated silane is faster to modify completely, it will be eaual or rise slowly at last. Finally, making the wetting diagram does the analysis of wetting mode, and combines with the possible mechanism which we propose. Explain why smooth and rough surfaces have entirely different wetting behavior and adhesion in the degree of silanization.

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