Abstract-The main purpose of this paper is using modification of nanoparticle layers to increasing the hydrophilic surfaces and enhancing the evaporation behaviors in stainless steel plate. When the products being made, use three different kind of fluids, acetone, ethanol and water to testing the benefit for evaporation test. The experimental results showed that the unmodified stainless steel plate's contact angle 87 and the contact angle is changing to 7 by modified stainless steel plate of 18 layers. But use the best contact angle to testing for the evaporation test, it was found that the acetone evaporation was enhanced to 450% benefit, the ethanol evaporation was increased by about 350% benefit, and the evaporation which enhancing over 300% benefit was by water.
Abstract. The aim of this study is to use nanoscale bilayers assembly tacking surface modification on stainless steel plate, to make the surface modification of the Super hydrophilic surface, and then as the visualization of droplet evaporation and evaporation efficiency of the study, the paper made nano-film in the form of overlapping surface modification, change its hydrophilicity, and then take water as the working fluid for evaporation behavior visualization observation. The change parameters include droplet size (1µl-5µl), droplet extension area and liquid film thickness, with the change of evaporation time, further analysis of evaporation enhancement efficiency. The results showed that the best modified 18-layer Contact angle was 4 ⁰ surface of the super hydrophilic water. The results of evaporation test showed that the best evaporation efficiency of plate was about 550% the liquid droplet was more than 3µl, the effect was stable at 550%, less than 3µl also had more than 450% promotion.
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