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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 諶玉真(Yu-Jane Sheng) | |
dc.contributor.author | I-Fan Hsieh | en |
dc.contributor.author | 謝逸凡 | zh_TW |
dc.date.accessioned | 2021-06-16T09:25:54Z | - |
dc.date.available | 2022-07-20 | |
dc.date.copyright | 2017-07-20 | |
dc.date.issued | 2017 | |
dc.date.submitted | 2017-06-07 | |
dc.identifier.citation | [1] de Gennes, P. G.; Brochard-Wyart, F.; Quéré, D. Capillarity and Wetting Phenomena, Drops, Bubbles, Pearls, Waves; Springer: New York, 2004.
[2] J. Berthier, Microdrops and digital microfluidics. 2008: William Andrew Publishing. [3] T. Young, An Essay on the Cohesion of Fluids. Philosophical Transactions of the Royal Society of London, 1805. 95(ArticleType: primary_article / Full publication date: 1805 / Copyright © 1805 The Royal Society): p. 65-87. [4] Wikipedia-Young-Laplace equation. https://en.wikipedia.org/wiki/Young%E2%80%93Laplace_equation. [5] Wenzel, R. N. Resistance of solid surfaces to wetting by water. Ind. Eng. Chem. 1936, 28, 988-994. [6] Cassie, A. B. D.; Baxter, S. Wettability of porous surfaces. Trans. Faraday Soc. 1944, 40, 546-551. [7] Hong, S.-J.; Chang, C.-C.; Chou, T.-H.; Sheng, Y.-J.; Tsao, H.-K. A drop pinned by a designed patch on a tilted superhydrophobic surface: mimicking desert beetle. J. Phys. Chem. C 2012, 116, 26487-26495. [8] Hong, S. J.; Chang, F. M.; Chou, T. H.; Chan, S. H.; Sheng, Y. J.; Tsao, H. K. Anomalous Contact Angle Hysteresis of a Captive Bubble: Advancing Contact Line Pinning. Langmuir 2011, 27, 6890-6896. [9] Chou, T.-H.; Hong, S.-J.; Sheng, Y.-J.; Tsao, H.-K. Drops sitting on a tilted plate: receding and advancing pinning. Langmuir 2012, 28, 5158-5166. [10] Israelachvili, J. N. Intermolecular and Surface Forces; Academic Press: New York, 1985. [11] N. Maeda, et al., Adhesion and friction mechanisms of polymer-on-polymer surfaces, Science 297 (5580) 2002, 379-382. [12] Johnson, R. E.; Dettre, R. H. Contact angle hysteresis I. Study of an idealized rough surface. Adv. Chem. Ser. 1964, 43, 112-135. [13] Promraksa, A.; Chen, L.-J. Modeling contact angle hysteresis of a liquid droplet sitting on a cosine wave-like pattern surface. J. Colloid Interface Sci. 2012, 384, 172-181. [14] Chang, C.-C.; Wu, C.-J.; Sheng, Y.-J.; Tsao, H.-K. Air pocket stability and the imbibition pathway in droplet wetting. Soft Matter 2015, 11, 7308-7315. [15] Cox, R. G. The spreading of a liquid on a rough solid surface. J. Fluid Mech. 1983, 131, 1-26. [16] Chang, C. C.; Sheng, Y. J.; Tsao, H. K. Wetting Hysteresis of Nanodrops on Nanorough Surfaces. Phys. Rev. E: Stat. Phys., Plasmas, Fluids, Relat. Interdiscip. Top. 2016, 94, 042807. [17] Wong, T.-S.; Kang, S. H.; Tang, S. K. Y.; Smythe, E. J.; Hatton, B. D.; Grinthal, A.; Aizenberg, J. Bioinspired self-repairing slippery surfaces with pressure-stable omniphobicity. Nature 2011, 477, 443-447. [18] Kim, P.; Kreder, M. J.; Alvarenga, J.; Aizenberg, J. Hierarchical or Not? Effect of the Length Scale and Hierarchy of the Surface Roughness on Omniphobicity of Lubricant-Infused Substrates. Nano Lett. 2013, 13, 1793-1799. [19] Chang, C. C.; Wu, C. J.; Sheng, Y. J.; Tsao, H. K. Resisting and Pinning of a Nanodrop by Trenches on a Hysteresis-free Surface. J. Phys. Chem. 2016, 145, 164702. [20] Chang, F. M.; Hong, S. J.; Sheng, Y. J.; Tsao, H. K. Wetting Invasion and Retreat across a Corner Boundary. J. Phys. Chem. C 2010, 114, 1615-1621. [21] Weng Y. H.;` Hsieh, I, F.; Tsao, H. K.; Sheng, Y. J. Water-repellent Hydropphilic Nanogrooves. DOI: 10.1039/c7cp01409k. [22] Mammen L, Bley K, Papadopoulos P, Schellenberger F, Encinas N, Butt HJ, Weiss CK, Vollmer D. Functional superhydrophobic surfaces made of Janus micropillars. Soft Matter 2015, 11 (3): 506-515. [23] G. O. Berim and E. Ruckenstein, Nanodrop on a nanorough hydrophilic solid surface: Contact angle dependence on the size, arrangement, and composition of the pillars, J. Colloid Interface Sci. 359, 304 (2011). [24] C. D. Daub, J. Wang, S. Kudesia, D. Bratko, and A. Luzar, The influence of molecular-scale roughness on the surface spreading of an aqueous nanodrop, Faraday Discuss. 146, 67 (2010). [25] Brakke, K. A. The Surface Evolver. Exp. Math. 1992, 1, 141-165. [26] Español, P.; Warren, P. B. Statistical mechanics of dissipative particle dynamics. Europhys. Lett. 1995, 30, 191-196. [27] Liang, Y. E.; Weng Y. H.; Hsieh, I F.; Tsao, H. K.; Sheng, Y. J. Attractive Encounter of a Nanodrop toward a Nanoprotrusion. J. Phys. Chem. C, 2017, 121 (14), 7923-7930. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/59504 | - |
dc.description.abstract | 本篇論文研究目的為探討在奈米尺度及無接觸線遲滯的條件下,液滴-柱及液滴-孔洞此二系統之潤濕現象。在一平滑表面上,可觀察到一奈米液滴之隨機運動行為;然而,當此液滴接觸到平滑表面上一材質與表面相同的凸起長方柱狀物時,其自由移動之能力將被限制住。無論是在親液或疏液系統,皆可觀察到液滴與柱之間存在的相互吸引力。藉由對系統施加一外力,並利用受力液滴之位移值及施加外力值,便可計算出兩種液滴脫離柱過程(與液滴是否跨越柱相關)之能量變化圖。結果顯示,所施加外力之臨界值、位能井深度值,在親液系統時皆大於在疏液系統時之值。此外,在親液系統可觀察到液滴能穩定對稱地跨坐在柱正上方;然而此狀態在疏液系統卻變得非常不穩定。另一方面,在液滴-孔洞之研究上,液滴初始即被放置在此孔洞的正上方,而根據觀察,液滴是否完全地潤濕此孔洞之條件,取決於液滴之潤濕性(接觸角)、液滴體積、孔洞大小以及孔洞內部構造。結果顯示,液滴恰巧潤濕孔洞之臨界角,會隨著液滴體積增大或孔洞大小減小而逐漸降低;而此結果也可用於解釋為何在金字塔形孔洞及倒金字塔形孔洞能觀察到截然不同的潤濕行為。 | zh_TW |
dc.description.abstract | The wetting behavior of a nanodrop encountering a nanoprotrusion and atop a nanogroove on a hysteresis-free surface is explored by Surface Evolver. On a smooth surface, a nanodrop exhibits random motion but will be captured as it encounters a nanoprotrusion, which possesses the same wettability as that of the surface. For both lyophilic and lyophobic systems, there exists an attraction between the drop and the protrusion. The energy profiles corresponding to the detaching processes with and without crossing the protrusion is determined by the displacement of the captured drop due to the applied external force. It is found that the critical forces and the depth of the energy wells of the lyophilic system are greater than those of the lyophobic system. Furthermore, the drop symmetrically straddling on the protrusion is stable for the lyophilic system but becomes unstable for the lyophobic system. For a nanodrop placed atop a nanogroove, whether the groove can be wetted by the drop depends on the wettability (contact angle), drop volume, groove size, and the shape of the groove. It is found that the critical contact angle corresponding to the impregnation of the groove by the drop diminishes with increasing drop volume or decreasing groove size. According to this result, the observed difference in the wetting phenomena between a pyramidal groove and an inverted pyramidal groove can be elucidated. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T09:25:54Z (GMT). No. of bitstreams: 1 ntu-106-R04524102-1.pdf: 4565480 bytes, checksum: d205a07562cae36e8a27d2fbc01e9ab7 (MD5) Previous issue date: 2017 | en |
dc.description.tableofcontents | 致謝 I
摘要 II Abstract III Content IV Content of Figures VI Chapter 1 Introduction 1 1-1 Wetting Phenomenon 1 1-2 Surface Tension and Contact Angle 1 1-3 Geometry Effect 5 1-4 Contact Angle Hysteresis 7 1-5 Research Objective 11 Chapter 2 Simulation Tool: Surface Evolver 13 2-1 Drop-protrusion System 16 2-2 Drop-groove System 16 Chapter 3 Wetting Phenomenon of the Drop-protrusion System 17 3-1 Drop Trapped by a Lyophilic Protrusion 18 3-1-1 Attraction between Drop and Protrusion 18 3-1-2 Crossing over the Protrusion by External Force 19 3-1-3 Detaching from the Protrusion by External Force 24 3-2 Drop Trapped by a Lyophobic Protrusion 31 3-2-1 Attraction between Drop and Protrusion 31 3-2-2 Crossing over the Protrusion by External Force 32 3-2-3 Detaching from the Protrusion by External Force 36 Chapter 4 Wetting Phenomenon of the Drop-groove System 42 4-1 Impregnation of a Cubic Nanogroove 42 4-2 Impregnation of a (Inverted) Pyramidal Nanogroove 47 Chapter 5 Conclusions 51 Chapter 6 Reference 53 | |
dc.language.iso | en | |
dc.title | 奈米尺度之液滴-柱與液滴-孔洞系統的潤濕現象 | zh_TW |
dc.title | Wetting Phenomenon of Nanoscaled Drop-protrusion and Drop-groove Systems | en |
dc.type | Thesis | |
dc.date.schoolyear | 105-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 曹恆光(Heng-Kwong Tsao),康敦彥(Dun-Yen Kang),謝之真(Chih-Chen Hsieh) | |
dc.subject.keyword | 潤濕,液滴,接觸角,Surface Evolver, | zh_TW |
dc.subject.keyword | Wetting,Droplet,Contact Angle,Surface Evolver, | en |
dc.relation.page | 55 | |
dc.identifier.doi | 10.6342/NTU201700901 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2017-06-08 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 化學工程學研究所 | zh_TW |
顯示於系所單位: | 化學工程學系 |
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