在超疏水界面光反射的基础上,用抽真空和压力驱动的方法研究了荷叶、超疏水ZnO阵列在水下的界面润湿行为和微结构中截留气体对其润湿行为的影响.结果表明:当有气体截留时受所加最大压力和微结构几何形貌的影响,超疏水界面在加压和减压过程中表现出不同的润湿可逆性;超疏水材料表面微结构中截留的气体能延迟水的侵入并提高超疏水稳定性;在特定情况下,随着外部压力的减小截留气体的膨胀能推动和排出侵入的水并引导反润湿过程.因此,截留气体有利于超疏水状态的存在.由于三相接触线密度的不同,纳米结构在压力作用下比微米结构表现出更为优异的疏水稳定性.
参考文献
| [1] | C.Neinhuis,W.Barthlott,Characterization and Distribution of Water-repellent,Self-cleaning Plant Surfaces,annals of botany,79(6),667(1997) |
| [2] | Y.Y.Yan,N.Gao,W.Barthlott,Mimicking natural superhydropho-bic surfaces and grasping the wetting process:A review on recent progress in preparing superhydrophobic surfaces,Advances in Colloid and Interface Science,169(2),80(2011) |
| [3] | WANG Bin,NIAN Jingyan,TIE Lu,ZHANG Yabin,GUO Zhiguang,Theoretical progress in designs of stablesuperhydrophobic surfaces,Acta Physica Sinica,62(14),146801 (2013)(王奔,念敬妍,铁璐,张亚斌,郭志光,稳定超疏水性表面的理论进展,物理学报,62(14),146801(2013) |
| [4] | Yu Ying,Wang Jiadao,Chen Darong,Study on drag reduction of hydrophobic surface,Lubrication Engineering,9(2006)(禹营,汪家道,陈大融,疏水表面的摩擦阻力特性研究,润滑与密封,9(2006) |
| [5] | HUANG Weibo,Studies on The Preparation of Flexible Spray Polyurea Coating and Its Drag-reducing Properties of Underwater Vehicle,PHD Thesis,Ocean University of China (2007)(黄微波,水下航行器喷涂聚脲柔性涂层的制备及减阻性能的研究,博士论文,中国海洋大学(2007) |
| [6] | S.Wang,L.Jiang,Definition of Superhydrophobic States,Advanced Materials,19(21),3423(2007) |
| [7] | A.B.D.Cassie,Contact Angles,Discussions of the Faraday Society,3,11(1948) |
| [8] | R.N.Wenzel,Resistance of solid surfaces to wetting by water,Industrial & Engineering Chemistry,28(8),988(1936) |
| [9] | B.Bhushan,Y.C.Jung,Natural and biomimetic artificial surfaces for superhydrophobicity,self-cleaning,low adhesion,and drag reduction,Progress in Materials Science,56(1),1 (2011) |
| [10] | C.W.Extrand,Designing for Optimum Liquid Repellency,Lang-muir,22(4),1711(2006) |
| [11] | B.Emami,Predicting shape and stability of air-water interface on superhydrophobic surfaces with randomly distributed,dissimilar posts,Applied Physics Letters,98(20),203106(2011) |
| [12] | N.A.Patankar,Consolidation of Hydrophobic Transition Criteria by Using an Approximate Energy Minimization Approach,Langmuir,26(11),8941(2010) |
| [13] | G.Whyman,E.Bormashenko,How to Make the Cassie Wetting State Stable?,Langrnuir,27(13),8171(2011) |
| [14] | 14 P.Papadopoulos,L.Mammen,X.Deng,D.Vollmer,H.J.Butt,How superhydrophobicity breaks down,PNAS,110(9),3254(2013) |
| [15] | HUANG Jianye,WANG Fenghui,ZHAO Xiang,ZHANG Kai,Wet-ting Transition and Stability Testing of Superhydrophobic State,Acta Phys.-chim.Sin.,29(11),2459(2013)(黄建业,王峰会,赵翔,张凯,超疏水状态的润湿转变与稳定性测试,物理化学学报,29(11),2459(2013) |
| [16] | C.W.Extrand,Modeling of Ultralyophobicity:Suspension of Liq-uid Drops by a Single Asperity,Langrnuir,21(23),10370(2005) |
| [17] | X.Sheng,J.Zhang,Air layer on superhydrophobic surface under-water,Colloids Surf.A.,377(1-3),374(2011) |
| [18] | R.Poetes,K.Holtzmann,K.Franze,U.Steiner,Metastable Under-water Superhydrophobicity,Physical Review Letters,105,166104(2010) |
| [19] | C.W.Extrand,Repellency of the Lotus Leaf:.Resistance to Water Intrusion under Hydrostatic Pressure,Langmuir,27(11),6920(2011) |
| [20] | N.A.Patankar,Vapor Stabilizing Substrates for Superhydrophobicity and Superslip,Langmuir,26(11),8783(2010) |
| [21] | ZHANG Yujun,Physical Chemistry,Chemical Industry Press,p.121(2008)(张玉军,物理化学,北京:化学工业出版社,p.121(2008)) |
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