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Green Superhydrophobic Surfaces / HENRY APSEY

Swansea University Author: HENRY APSEY

  • E-Thesis under embargo until: 12th August 2029

DOI (Published version): 10.23889/SUThesis.68208

Abstract

This project aims to develop novel fluorine-free superhydrophobic (water-repelling) sur-faces, made from readily available non-toxic and economical branched low surface energy materials (LSEMs). These have important advantages over the existing LSEMs, including biodegradability, environmental accepta...

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Published: Swansea University, Wales, UK 2024
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
Supervisor: Alexander, S., Barron, A. R., and Hill, D.
URI: https://cronfa.swan.ac.uk/Record/cronfa68208
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first_indexed 2024-11-07T12:15:55Z
last_indexed 2024-11-07T12:15:55Z
id cronfa68208
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spelling v2 68208 2024-11-07 Green Superhydrophobic Surfaces a0c493aece11b972ac4fd108228ab199 HENRY APSEY HENRY APSEY true false 2024-11-07 This project aims to develop novel fluorine-free superhydrophobic (water-repelling) sur-faces, made from readily available non-toxic and economical branched low surface energy materials (LSEMs). These have important advantages over the existing LSEMs, including biodegradability, environmental acceptance and are cheaper to mass produce compared with current superhydrophobic materials which are typically made using fluorocarbons.Fluorinated compounds have significant environmental risks due to bio-persistence and bio-accumulation, and are also extremely costly. The applications of low surface energy surfaces vary from protective or anti-adhesion coatings and anti-fouling, to environmental and biomedical applications. The research will focus on diverse areas from fundamental science to applications that rely on LSEMs. An overview will be discussed in Chapter 1. This thesis details the design and fabrication of superhydrophobic surfaces through a variety of methods and demonstrates their potential in a range of real-life applications. The effects of materials, their synthesis and application to a range of surfaces have been explored in order to engineer optimal surface properties. Firstly, in Chapter 2 a range of metal oxide nanoparticles were functionalised using a range of carboxylic acids. These were further tested in various ratios and combinations. In Chapter 3 the chain length of siloxane films were explored to test the anti-fouling properties of a surface on glass and plastic. In Chapter 4 investigation into carbon based materials for their hydrophobic and electrical carrying properties. Finally, In Chapter 5 we investigated the design, application and testing of hydrophobic/hydrophilic coated 3D printed substrates for attraction and collection of water vapour for water collection. E-Thesis Swansea University, Wales, UK superhydrophobic, hydrophobic, coatings, surface, waterproof, colloids, metal oxide, silane, graphene oxide 12 8 2024 2024-08-12 10.23889/SUThesis.68208 A selection of content is redacted or is partially redacted from this thesis to protect sensitive and personal information. COLLEGE NANME COLLEGE CODE Swansea University Alexander, S., Barron, A. R., and Hill, D. Doctoral Ph.D EPSRC doctoral training grant, Salts Healthcare EPSRC doctoral training grant, Salts Healthcare 2024-11-07T12:20:05.5221037 2024-11-07T12:03:19.0196572 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering HENRY APSEY 1 Under embargo Under embargo 2024-11-07T12:14:39.5757356 Output 10691717 application/pdf E-Thesis true 2029-08-12T00:00:00.0000000 Copyright: The Author, Henry Apsey, 2024 true eng
title Green Superhydrophobic Surfaces
spellingShingle Green Superhydrophobic Surfaces
HENRY APSEY
title_short Green Superhydrophobic Surfaces
title_full Green Superhydrophobic Surfaces
title_fullStr Green Superhydrophobic Surfaces
title_full_unstemmed Green Superhydrophobic Surfaces
title_sort Green Superhydrophobic Surfaces
author_id_str_mv a0c493aece11b972ac4fd108228ab199
author_id_fullname_str_mv a0c493aece11b972ac4fd108228ab199_***_HENRY APSEY
author HENRY APSEY
author2 HENRY APSEY
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publishDate 2024
institution Swansea University
doi_str_mv 10.23889/SUThesis.68208
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
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description This project aims to develop novel fluorine-free superhydrophobic (water-repelling) sur-faces, made from readily available non-toxic and economical branched low surface energy materials (LSEMs). These have important advantages over the existing LSEMs, including biodegradability, environmental acceptance and are cheaper to mass produce compared with current superhydrophobic materials which are typically made using fluorocarbons.Fluorinated compounds have significant environmental risks due to bio-persistence and bio-accumulation, and are also extremely costly. The applications of low surface energy surfaces vary from protective or anti-adhesion coatings and anti-fouling, to environmental and biomedical applications. The research will focus on diverse areas from fundamental science to applications that rely on LSEMs. An overview will be discussed in Chapter 1. This thesis details the design and fabrication of superhydrophobic surfaces through a variety of methods and demonstrates their potential in a range of real-life applications. The effects of materials, their synthesis and application to a range of surfaces have been explored in order to engineer optimal surface properties. Firstly, in Chapter 2 a range of metal oxide nanoparticles were functionalised using a range of carboxylic acids. These were further tested in various ratios and combinations. In Chapter 3 the chain length of siloxane films were explored to test the anti-fouling properties of a surface on glass and plastic. In Chapter 4 investigation into carbon based materials for their hydrophobic and electrical carrying properties. Finally, In Chapter 5 we investigated the design, application and testing of hydrophobic/hydrophilic coated 3D printed substrates for attraction and collection of water vapour for water collection.
published_date 2024-08-12T12:20:04Z
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score 11.037603

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