Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science

On the Superhydrophobic Properties of Crystallized Stearic Acid*

Kyle R. Joseph A and Chiara Neto A B

A School of Chemistry, The University of Sydney, NSW 2006, Australia.

B Corresponding author. Email:

Australian Journal of Chemistry 63(3) 525-528
Submitted: 15 May 2009  Accepted: 2 October 2009   Published: 26 March 2010


A surface coating formed by stearic acid (SA) crystals was prepared by repeatedly dipping a silicon substrate into a SA solution and drying it in air. Scanning electron microscopy imaging revealed that the surface roughness of the coating increases with each dip-and-dry cycle. The coating appears as a carpet of hydrophobic ‘blades’, and is superhydrophobic (after 20 dipping cycles advancing contact angle ~160°), even after immersion in water for up to 2 h. This simple method could be applied to large areas, making this an interesting alternative to high-tech surface modification techniques.


[1]  Whitesides G. M.Stroock A. D.2001Phys. Today5442doi:10.1063/1.1387591

[2]  Neinhuis C.Barthlott W.1997Ann. Bot.79667doi:10.1006/ANBO.1997.0400

[3]  Barthlott W.Neinhuis C.1997Planta2021doi:10.1007/S004250050096

[4]  Wenzel R. N.1936Ind. Eng. Chem.28988doi:10.1021/IE50320A024

[5]  Cassie A. B. D.Baxter S.1944Trans. Faraday Soc.40546doi:10.1039/TF9444000546

[6]  Otten A.Herminghaus S.2004Langmuir202405doi:10.1021/LA034961D

[7]  Nakajima A.Hashimoto K.Watanabe H.2001Monatsh. Chem.13231doi:10.1007/S007060170142

[8]  Quéré D.2005Rep. Prog. Phys.682495doi:10.1088/0034-4885/68/11/R01

[9]  Nakajima A.Hashimoto K.Watanabe T.Takai K.Yamauchi G.Fujishima A.2000Langmuir167044doi:10.1021/LA000155K

[10]  Blossey R.2003Nat. Mater.2301doi:10.1038/NMAT856

[11]  Patankar N. A.2004Langmuir208209doi:10.1021/LA048629T

[12]  Genzer J.Efimenko K.2006Biofouling22339doi:10.1080/08927010600980223

[13]  Genzer J.Marmur A.2008MRS Bull.33742

[14]  Watanabe K.Udagawa Y.Udagawa H.1999J. Fluid Mech.381225doi:10.1017/S0022112098003747

[15]  Neto C.Evans D. R.Bonaccurso E.Butt H.-J.Craig V. S. J.2005Rep. Prog. Phys.682859doi:10.1088/0034-4885/68/12/R05

[16]  Henry C. L.Neto C.Evans D. R.Biggs S.Craig V. S. J.2004Physica A33960doi:10.1016/J.PHYSA.2004.03.044

[17]  Marmur A.2006Langmuir221400doi:10.1021/LA052802J

[18]  Voronov R. S.Papavassiliou D. V.Lee L. L.2008Ind. Eng. Chem. Res.472455doi:10.1021/IE0712941

[19]  Sun T.Feng L.Gao X.Jiang L.2005Acc. Chem. Res.38644doi:10.1021/AR040224C

[20]  Ma M.Hill R. M.2006Curr. Opin. Colloid Interface Sci.11193doi:10.1016/J.COCIS.2006.06.002

[21]  Roach P.Shirtcliffe N. J.Newton M. I.2008Soft Matter4224doi:10.1039/B712575P

[22]  Saleema N.Farzaneh M.2008Appl. Surf. Sci.2542690doi:10.1016/J.APSUSC.2007.10.004

[23]  Hosono E.Fujihara S.Honma I.Zhou H.2005J. Am. Chem. Soc.12713458doi:10.1021/JA053745J

[24]  Ren S.Yang S.Zhao Y.Yu T.Xiao X.2003Surf. Sci.54664doi:10.1016/J.SUSC.2003.09.018

[25]  Song X.Zhai J.Wang Y.Jiang L.2006J. Colloid Interface Sci.298267doi:10.1016/J.JCIS.2005.11.048

[26]  Wang Q.Zhang B.Qu M.Zhang J.He D.2008Appl. Surf. Sci.2542009doi:10.1016/J.APSUSC.2007.08.039

[27]  von Sydow E.1955Acta Crystallogr.8557doi:10.1107/S0365110X55001746

[28]  de Gennes P.-G., Brochard-Wyart F., Quéré D., Capillarity and Wetting Phenomena. Drops, Bubbles, Pearls, Waves 2004 (Springer: New York, NY).

[29]  Tadros M. E.Hu P.Adamson A. W.1974J. Colloid Interface Sci.49184doi:10.1016/0021-9797(74)90351-8

[30]  Nishino T.Meguro M.Nakamae K.Matsushita M.Ueda Y.1999Langmuir154321doi:10.1021/LA981727S

[31]  Lafuma A.Quéré D.2003Nat. Mater.2457doi:10.1038/NMAT924

[32]  Gao L.McCarthy T. J.2006Langmuir226234doi:10.1021/LA060254J

[33]  Larmour I. A.Bell S. E. J.Saunders G. C.2007Angew. Chem.461710doi:10.1002/ANIE.200604596

Export Citation Cited By (2)