Cassie-Baxter to Wenzel state wetting transition: Scaling of the front velocity
We experimentally study the dynamics of water in the Cassie-Baxter state to Wenzel state transition on surfaces decorated with assemblies of micrometer-size square pillars arranged on a square lattice. The transition on the micro-patterned superhydrophobic polymer surfaces is followed with a high-sp...
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| Veröffentlicht in: | The European physical journal. E, Soft matter and biological physics Soft matter and biological physics, 2009-08, Vol.29 (4), p.391-397 |
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| container_title | The European physical journal. E, Soft matter and biological physics |
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| creator | Peters, A. M. Pirat, C. Sbragaglia, M. Borkent, B. M. Wessling, M. Lohse, D. Lammertink, R. G. H. |
| description | We experimentally study the dynamics of water in the Cassie-Baxter state to Wenzel state transition on surfaces decorated with assemblies of micrometer-size square pillars arranged on a square lattice. The transition on the micro-patterned superhydrophobic polymer surfaces is followed with a high-speed camera. Detailed analysis of the movement of the liquid during this transition reveals the wetting front velocity dependence on the geometry and material properties. We show that a decrease in gap size as well as an increase in pillar height and intrinsic material hydrophobicity result in a lower front velocity. Scaling arguments based on balancing surface forces and viscous dissipation allow us to derive a relation with which we can rescale all experimentally measured front velocities, obtained for various pattern geometries and materials, on one single curve. |
| doi_str_mv | 10.1140/epje/i2009-10489-3 |
| format | Article |
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M.</creatorcontrib><creatorcontrib>Pirat, C.</creatorcontrib><creatorcontrib>Sbragaglia, M.</creatorcontrib><creatorcontrib>Borkent, B. M.</creatorcontrib><creatorcontrib>Wessling, M.</creatorcontrib><creatorcontrib>Lohse, D.</creatorcontrib><creatorcontrib>Lammertink, R. G. H.</creatorcontrib><title>Cassie-Baxter to Wenzel state wetting transition: Scaling of the front velocity</title><title>The European physical journal. E, Soft matter and biological physics</title><addtitle>Eur. Phys. J. E</addtitle><addtitle>Eur Phys J E Soft Matter</addtitle><description>We experimentally study the dynamics of water in the Cassie-Baxter state to Wenzel state transition on surfaces decorated with assemblies of micrometer-size square pillars arranged on a square lattice. The transition on the micro-patterned superhydrophobic polymer surfaces is followed with a high-speed camera. Detailed analysis of the movement of the liquid during this transition reveals the wetting front velocity dependence on the geometry and material properties. We show that a decrease in gap size as well as an increase in pillar height and intrinsic material hydrophobicity result in a lower front velocity. Scaling arguments based on balancing surface forces and viscous dissipation allow us to derive a relation with which we can rescale all experimentally measured front velocities, obtained for various pattern geometries and materials, on one single curve.</description><subject>Biological and Medical Physics</subject><subject>Biophysics</subject><subject>Chemistry</subject><subject>Complex Fluids and Microfluidics</subject><subject>Complex Systems</subject><subject>Exact sciences and technology</subject><subject>Fluid Dynamics</subject><subject>General and physical chemistry</subject><subject>Nanotechnology</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Polymer Sciences</subject><subject>Regular Article</subject><subject>Soft and Granular Matter</subject><subject>Solid-liquid interface</subject><subject>Surface physical chemistry</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><issn>1292-8941</issn><issn>1292-895X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp9kM1OGzEURq0KVH7aF-ii8gZVLAbsscdjdxeiUipFYkER3VkezzU4moxT26GFp8chUdixutb1-b4rHYS-UHJGKSfnsJzDua8JURUlXKqKfUCHtFZ1JVXzZ2_35vQAHaU0J4SUGPuIDqgSQtFWHqLrqUnJQ3Vh_meIOAd8B-MzDDhlkwH_g5z9eI9zNGPy2YfxO76xZljvgsP5AbCLYcz4EYZgfX76hPadGRJ83s5jdHv54_f0qppd__w1ncwqyxueK9t1ShnbWZC8k85YEHUPjApHO8Na6Zjou95aVmbfNw2YhjohmHSuU6417BidbnofzKCX0S9MfNLBeH01men1jjBJZd2KR1rYbxt2GcPfFaSsFz5ZGAYzQlgl3TJOuJJUFbLekDaGlCK4XTUleu1cr53rV-f61blmJfR1W7_qFtC_RbaSC3CyBUwq7lxxaX3acXUBG8HbwrENl8rXeA9Rz8MqjkXje-dfADConRM</recordid><startdate>20090801</startdate><enddate>20090801</enddate><creator>Peters, A. 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| title | Cassie-Baxter to Wenzel state wetting transition: Scaling of the front velocity |
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