利用二氧化矽顆粒自組裝方式應用於超疏水性玻璃表面改質

A superhydrophobic glass surface with self-assembled silica particles

李佩珊(Pei-Shan Lee)

指導教授 ： 陳炳煇

國立臺灣大學/工學院/機械工程學研究所/碩士(2009年)

https://doi.org/10.6342/NTU.2009.10615

摘要

無資料

關鍵字

超疏水性 ； 微奈米結構 ； 蓮花效應 ； 透光 ； 玻璃表面

並列摘要

In this thesis, a versatile method to produce superhydrophobic surfaces with micro-silica, nano-silica, and hierarchical structures with micro/nano-silica on glass surfaces were successfully developed. Optically transparent superhydrophobic silica thin films were prepared by using silica particles suspended in several silane couple agents, including Methyltriethoxysilane (METES), Methyltrimethoxysilane(METMS), Dimethoxydimethylsilane (DIMES), Decyltrimethoxysilane (DECYS), and a mixture of METES/METMS, METES/DIMES, and METES/DECYS(molar ratio 1). A silane couple agent, which mimics the hydrophobic compound material on the lotus leaf, is to bond the substrate such as glass and a material such as silica particles. Subsequently, a mixture of silane couple agents achieves higher contact angles and transmittances than a single silane couple agent.
Our results also show that as the weight of silica particles increases, the surface roughness is enhanced. After the surface roughness is enhanced, the surface hydrophobicity increased, whereas the transmittance decreased. Therefore, a balance between the weight of silica-particle and the choice of silane is of great importance. These superhydrophobic films have been characterized by scanning electron microscopy (SEM), optical transmission, and contact angle (CA) measurements. A superhydrophobic(CA=162.8°) and nearly transparent(T~84%) surface is obtained on a hierarchical structure dipped in the solution composed of with 0.2g of micro/nano-silica particles and 5.94g METES/DECYS(molar ratio 1).

並列關鍵字

Superhydrophobic ； Lotus effect ； Micro/Nano structure ； glass ； transparency

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