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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/96429


    Title: Adjustable Wetting Behavior of Parylene Surface Using to Liquid-Droplet Locomotion
    Authors: He, Guo-Yuan;Yang, Lung-Jieh
    Contributors: 淡江大學機械與機電工程學系
    Keywords: Plasma;CF4;SF6;O2;Hydrophobic;Hydrophilic
    Date: 2008-06
    Issue Date: 2014-03-07 11:38:34 (UTC+8)
    Abstract: This paper demonstrated the plasma treatment of only 10 seconds on the parylene surface for changing its wetting behavior. CF4 and SF6 plasma gasses could increase the contact angle (of water) remarkably from 74 degree (lightly hydrophilic) to 123 degree (hydrophobic), whereas O2 plasma could reversely decrease the contact angle greatly from 75 degree to almost 0 degree (highly hydrophilic). The former can be applied to making the hydrophobic surface for driving liquid droplets, and the later can enhance the automatically filling flow caused by capillary suction. We apply the former to the micro-pillar array devices, and the max moving velocity of droplet is 23.06 mm/sec. Moreover, we also compared it with micro-pillar array which was modified by vapor of HMDS in this paper.
    Relation: Proceedings of the 4th Asia Pacific Conference on Transducers and Micro-Nano Technologies (APCOT 2008),4p.
    Appears in Collections:[機械與機電工程學系暨研究所] 會議論文

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