本論文之目的在使用分子動力學模擬奈米液滴於基材上之潤濕(wetting)行為，依模擬系統找尋合適且能正確描述的水、白金及水與白金基材之勢能，並且建立奈米水滴與白金基材之系統，再進一步的探討兩者之間潤濕行為，以提供奈米噴流加工製程設計的條件最佳化之參考。
研究內容可分為兩大部份，分別以溫度及液滴尺寸作為操作變因，探討液滴的潤濕行為，在潤濕行為的研究是以液滴於基材上的潤濕面積(wetting area)及液滴與基材間的接觸角(contact angle)做為此行為的討論議題。

The purpose of this thesis is to simulate the behavior of a nano water droplet on a platinum substrate based on molecular dynamics. By finding appropriate potential energies for water-water, water-platinum and platinum-platinum, we may build up a simulation system to investigate the wetting behavior between water and platinum. And therefore the simulation results may be offered as reference to nano-spreading industries.

The study is divided into two parts: choosing the temperature and the droplet size as operating conditions to investigate the wetting behavior respectively. The wetting area and the contact angle between the droplet and the platinum surface are investigated to discuss the wetting behaviors.

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