本實驗以純水及十二烷基硫酸鈉(SDS)水溶液之液滴撞擊於不同固體表面，進行液滴撞擊之行為研究，其中固體平板包含金平板上之SAM (Self Assembled Monolayer)、聚碳酸酯平板、玻璃平板上之封口膜(parafilm)及加熱之鎳金屬板等。本實驗分析液滴撞擊後之潤濕直徑、接觸角及液滴高度，並進而探討液滴撞擊速度、固體表面之親疏水性、固體之表面粗糙度及液體表面張力等對液滴撞擊行為之影響。
首先以純水液滴撞擊四種SAM (pCBMA, pSBMA, SAM-COOH和 SAM-CH3) 奈米膜，探討液滴撞擊速度及SAM膜親疏水性對液滴撞擊行為之影響。其結果顯示：純水液滴於固體表面上之前進接觸角為影響液滴撞擊行為之主要因素。
接者，本研究以純水及SDS水溶液之液滴撞擊於不同表面粗糙度之PC平板(Rq=15, 32, 114 nm)，進而探討固體表面粗糙度及液滴表面張力對液滴撞擊行為之影響。實驗結果顯示：液滴潤濕直徑將受到固體表面粗糙度影響，於液滴撞擊後第一個擴張階段期間，固體表面越平滑，其潤濕直徑則隨之增加。
最後，以純水液滴撞擊加熱至不同溫度之鎳金屬表面，其溫度介於25~300℃之間。結果顯示：表面溫度約於200℃後開始發現Leidenfrost效應。

Droplet impingement experiments were conducted for impacting water drop and surfactant solution (SDS with C > Ccmc) drop onto different solid substrates, including the Self Assembled Monolayer (SAM) coated surfaces, polycarbonate (PC), parafilm and heated nickel surfaces. Relaxations of wetting diameter, contact angle, and drop height were monitored. The roles of impact velocity, hydrophobicity, surface roughness, and surface tension were studied.
The effects of impact velocity and surface hydrophobicity were investigated for water drop impacting onto four coated surfaces (pCBMA, pSBMA, SAM-COOH, and SAM-CH3). The advancing contact angle was found to be the major parameter on the impingement behavior.
The effects of surface roughness and surface tension for drops of pure water and SDS solution impinging on polycarbonate (PC) surfaces were studied for different PC surfaces with Rq = 15, 32, and 114 nm. The relaxation of drop wetting diameter was strongly affected by roughness. The largest wetting diameter during first spreading was observed for the smoothest surface.
The drop impinging was also studied for water drops impacting onto a heated Nickel surface at 25 < T < 300°C. The Leidenfrost effect was observed at temperature ~200°C.

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