Corresponding Author

Hua-shui LIN


A series of different dimensions regularly micropillar array hydrophobic Poly(dimethylsiloxane)(PDMS) surfaces were obtained by peeling off PDMS which was poured onto the silicon models.The silicon models were prepared by ICP etching technology.The results indicate that the water contact angle(WCA) was increased with the size and the height of the mocropillar,decreased with increasing the distance of the mocropillar when the height of the micropillar was relative small;if the height of the micropillar was relative big,WCA was decreased with increasing the size of micropillar,meanwhile,the distance of the micropillar was a complex factor to WCA,and the height of the micropillar have little influence.The biggest of WCA on this micopillar array PDMS surface can reach to about 151° when the size,distance,height of the micropillar were 14μm,6μm,14μm respectively.


ICP etching, silicon model, PDMS, superhydrophobic

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[1]Lam P,Wynne K J,Wnek G E.Surface-tension-con-fined microfluidics[J].Langmuir,2002,18:948.
[2]Frstner R,Barthlott W.Wetting and self-cleaningproperties of artificial superhydrophobic surfaces[J].Langmuir,2005,21:956.
[3]Zhai L,Berg MC,Cebeci F C,et al.Patterned super-hydrophobic surfaces:toward a synthetic mimic of theNamib Desert beetle[J].Nano Lett,2006,6:1213.
[4]QurD.Non-sticking drops[J].Rep Prog Phys,2005,68:2495.
[5]Dupuis A,Yeomans J M.Modeling droplets on super-hydrophobic surfaces:Equilibrium states and transitions[J].Langmuir,2005,21:2624.
[6]Jopp J,Grll H,Yerushalmi-Rozen R.Wetting behav-ior of water droplets on hydrophobic microtextures ofcomparable size[J].Langmuir,2004,20:10015.
[7]Oner D,McCarthy T J.Ultrahydrophobic surfaces.Effects of topography length scales on wettability[J].Langmuir,2000,16:7777.
[8]Bai Shuo(白硕),Yang Ling-lu(杨凌露),Zhang Mao-feng(张茂峰),et al.Patterned Ag film with superhy-drophobic properties[J].Acta Phys-Chim Sin(in Chi-nese),2006,22(10):1296.
[9]Xia Y N,Rogers J A,Paul K E,et al.Unconventionalmethods for fabricating and patterning nanostructures?[J].Chem Rev,1999,99:1823.
[10]Zheng Z J,Azzaroni O,Zhou F,et al.Topographyprinting to locally control wettability[J].J Am ChemSoc,2006,128:7730.
[11]Khorasani MT,Hmirzadeh H,Sammes P G.Laser in-duced surface modification of polydimethylsiloxane as asuper-hydrophobic material[J].Radiat Phys Chem,1996,47:881.
[12]Jin MH,Feng X J,Xi J M,et al.Super-hydrophobicPDMS surface with ultra-low a adhesive force[J].Macromol Rapid Commun,2005,26:1805.
[13]Wenzel R N.Resistance of solid surfaces to wetting bywater[J].Ind Eng Chem,1936,28:988.
[14]Cassie A B D,Baxter S.Wettability of porous surfaces[J].Trans Faraday Soc,1944,40:546.



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