An experimental investigation of water tension on hydrophobic surface

Self-cleaning surfaces have received a great attention and are highly desirable as they have endless potential applications. This surface can be achieved through two approaches, either the use of a hydrophilic surface or a hydrophobic surface. With reference to Wenzel and Cassie and Baxter, hydropho...

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Main Author: Chan, Kim Hang.
Other Authors: Chan Weng Kong
Format: Final Year Project
Language:English
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/10356/44960
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-449602023-03-04T18:37:57Z An experimental investigation of water tension on hydrophobic surface Chan, Kim Hang. Chan Weng Kong Yang Chun, Charles School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering::Fluid mechanics Self-cleaning surfaces have received a great attention and are highly desirable as they have endless potential applications. This surface can be achieved through two approaches, either the use of a hydrophilic surface or a hydrophobic surface. With reference to Wenzel and Cassie and Baxter, hydrophobicity is determined by the high contact angle, surface tension and surface roughness. An ultra hydrophobic surface refers to a surface which has a water contact angle bigger than 150°. In order to achieve an ultra hydrophobic surface, we can either increase the surface tension of the substrate or increase the surface roughness without affecting the substrate. In this research, the student will be investigating the surface tension on hydrophobic surface. He will fabricate a hydrophobic coating on the glass slides via sol-gel method and alter the surface roughness with the use of aluminum oxide nanoparticles. Different size of aluminum oxide nanoparticles will be used, and the sizes are 10nm, 80nm and 150nm. The hydrophobicity will be determined by the contact angle of the water droplet on the glass slide and the surface roughness is determined by the use of atomic force microscope or the confocal imaging profiler. Bachelor of Engineering (Mechanical Engineering) 2011-06-07T07:13:38Z 2011-06-07T07:13:38Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/44960 en Nanyang Technological University 64 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering::Fluid mechanics
spellingShingle DRNTU::Engineering::Mechanical engineering::Fluid mechanics
Chan, Kim Hang.
An experimental investigation of water tension on hydrophobic surface
description Self-cleaning surfaces have received a great attention and are highly desirable as they have endless potential applications. This surface can be achieved through two approaches, either the use of a hydrophilic surface or a hydrophobic surface. With reference to Wenzel and Cassie and Baxter, hydrophobicity is determined by the high contact angle, surface tension and surface roughness. An ultra hydrophobic surface refers to a surface which has a water contact angle bigger than 150°. In order to achieve an ultra hydrophobic surface, we can either increase the surface tension of the substrate or increase the surface roughness without affecting the substrate. In this research, the student will be investigating the surface tension on hydrophobic surface. He will fabricate a hydrophobic coating on the glass slides via sol-gel method and alter the surface roughness with the use of aluminum oxide nanoparticles. Different size of aluminum oxide nanoparticles will be used, and the sizes are 10nm, 80nm and 150nm. The hydrophobicity will be determined by the contact angle of the water droplet on the glass slide and the surface roughness is determined by the use of atomic force microscope or the confocal imaging profiler.
author2 Chan Weng Kong
author_facet Chan Weng Kong
Chan, Kim Hang.
format Final Year Project
author Chan, Kim Hang.
author_sort Chan, Kim Hang.
title An experimental investigation of water tension on hydrophobic surface
title_short An experimental investigation of water tension on hydrophobic surface
title_full An experimental investigation of water tension on hydrophobic surface
title_fullStr An experimental investigation of water tension on hydrophobic surface
title_full_unstemmed An experimental investigation of water tension on hydrophobic surface
title_sort experimental investigation of water tension on hydrophobic surface
publishDate 2011
url http://hdl.handle.net/10356/44960
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