Water And Oil Repellent Surfaces
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Water And Oil Repellent Surfaces
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Author : Ioannis Karapanagiotis
language : en
Publisher: MDPI
Release Date : 2020-11-18
Water And Oil Repellent Surfaces written by Ioannis Karapanagiotis and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-18 with Science categories.
Materials of extreme wetting properties have received significant attention, as they offer new perspectives providing numerous potential applications. Water- and oil-repellent surfaces can be used, for instance, in the automobile, microelectronics, textile and biomedical industries; in the protection and preservation of constructions, buildings and cultural heritage; and in several other applications relevant to self-cleaning, biocide treatments, oil–water separation and anti-corrosion, just to name a few. The papers included in this book present innovative production methods of advanced materials with extreme wetting properties that are designed to serve some of the abovementioned applications. Moreover, the papers explore the scientific principles behind these advanced materials and discuss their applications to different areas of coating technology.
Water And Oil Repellent Surfaces
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Author : Ioannis Karapanagiotis
language : en
Publisher:
Release Date : 2020
Water And Oil Repellent Surfaces written by Ioannis Karapanagiotis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Materials of extreme wetting properties have received significant attention, as they offer new perspectives providing numerous potential applications. Water- and oil-repellent surfaces can be used, for instance, in the automobile, microelectronics, textile and biomedical industries; in the protection and preservation of constructions, buildings and cultural heritage; and in several other applications relevant to self-cleaning, biocide treatments, oil-water separation and anti-corrosion, just to name a few. The papers included in this book present innovative production methods of advanced materials with extreme wetting properties that are designed to serve some of the abovementioned applications. Moreover, the papers explore the scientific principles behind these advanced materials and discuss their applications to different areas of coating technology.
Water And Oil Repellent For Glass Surface
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Author : Y. Oda
language : en
Publisher:
Release Date : 1983
Water And Oil Repellent For Glass Surface written by Y. Oda and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Water And Oil Repellent Glass Surface Treatment Agent
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Author : Y. Oda
language : en
Publisher:
Release Date : 1983
Water And Oil Repellent Glass Surface Treatment Agent written by Y. Oda and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Bioinspired Structures And Design
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Author : Wole Soboyejo
language : en
Publisher: Cambridge University Press
Release Date : 2020-09-17
Bioinspired Structures And Design written by Wole Soboyejo and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-17 with Science categories.
Human cortical bone as a structural material : Hierarchical design and biological degradation / Robert Ritchie and Elizabeth A. Zimmermann -- Bio-inspiration from nacre / Nima Rahbar and Sina Askarinejad -- Bio-inspiration from bamboo / Ting Tan and Wole Soboyejo.
Designing Liquid Repellent Surfaces For Fabrics Feathers And Fog
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Author : Shreerang Sharad Chhatre
language : en
Publisher:
Release Date : 2013
Designing Liquid Repellent Surfaces For Fabrics Feathers And Fog written by Shreerang Sharad Chhatre and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Omniphobicity refers to a property of surfaces which are not wetted by water, oils, alcohols and other low surface tension liquids. Robust omniphobic surfaces can be applied in many areas including fabrics with chemical / biological protection and dirt / fingerprint resistant touch screens. The main aim of this thesis is to develop rules for the systematic design of omniphobic surfaces with a focus on textiles. First, a design chart is developed to help us understand the impact of surface chemistry and surface topography on the wettability of a textured surface. A smaller characteristic length scale of a re-entrant surface topography, tighter weave and a coating with inherently low wettability are better for producing omniphobic surfaces that resist wetting by liquids with low surface tension. This framework is applied to textile fabrics and bird feathers to test their wettability. Using this framework, wettability of low surface tension liquids on a polyester fabric is tuned or switched using either thermal annealing or biaxial stretching. Army Combat Uniform fabrics are rendered oleophobic, thus opening the way to optimize omniphobic army uniforms. The wettability of molecules similar to fluorodecyl POSS is investigated by measuring the contact angles with liquids of a broad range of surface tension and polarity. Of the molecules tested so far, fluorodecyl POSS has the lowest solid surface energy (9.3 mN/m) and the lowest increment in solid surface energy (7 mN/m). The wetting aspects of the hierarchical topography of bird feathers are captured using contact angle measurements in terms of a spacing ratio. Thermodynamics of the wetting of feathers and the robustness against wetting during the course of a dive are correlated to the wing spreading behavior. Our understanding of surface wettability of woven meshes is applied to optimize their fog collection ability. A business case for fog harvesting is developed and strategies to decrease asset and cash flow risks are proposed. The contributions presented here provide means to better characterize surfaces with complex topography, tune and a priori predict their wettability and recommend a design strategy both at a molecular and a macroscopic level to maximize their non-wettability.
Waterproof And Water Repellent Textiles And Clothing
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Author : John T Williams
language : en
Publisher: Woodhead Publishing
Release Date : 2017-11-21
Waterproof And Water Repellent Textiles And Clothing written by John T Williams and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-21 with Technology & Engineering categories.
Waterproof and Water Repellent Textiles and Clothing provides systematic coverage of the key types of finishes and high performance materials, from conventional wax and silicone, through controversial, but widely used fluoropolymers and advanced techniques, such as atmospheric plasma deposition and sol-gel technology. The book is an essential resource for all those engaged in garment development, production and finishing, and for academics engaged in research into apparel technology and textile science. Rapid innovation in this field is driving new performance demands in many areas, including the sporting and military sectors. However, another innovation driver is the regulatory framework in the USA, Europe and globally, addressing both health concerns (e.g. with PFOS / PFOA) and environmental impacts (e.g. C8 fluorocarbon finishes). Both of these aspects are fully covered, along with the replacement materials / technologies currently available and under development. In addition, oleophobic and multifunctional coatings are discussed, as are aspects of performance, testing and applications in sportswear, protective clothing, and footwear. Introduces innovative materials and technologies, exploring their current and potential use across different sectors Provides expert guidance on the health and environmental aspects of key waterproof materials and coatings and their associated regulations Demystifies testing processes and design principles
Wetting Of Underliquid Systems
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Author : Kumari Trinavee
language : en
Publisher:
Release Date : 2019
Wetting Of Underliquid Systems written by Kumari Trinavee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Computational fluid dynamics categories.
Wetting studies can be tracked back over the last few decades due to its applications in the development of water repellent (superhydrophobic), oil repellent (superoleophobic) surfaces. Despite the fact that these surfaces are well explored for air medium (inviscid), still the subject remains an emerging and challenging field due to the dearth of fundamental studies of wetting in surrounding viscous medium. Analyzing the interaction of a liquid droplet with a surface when kept in another liquid medium is vital for evolving applications in aquatic environment, oil-spillage, designing functional interfaces etc. The present study identifies and addresses a systematic study of two different underliquid systems : oil (drop) in water (surrounding medium) and water (drop) in oil (surrounding medium) with two different substrates viz., Poly (methyl methacrylate) PMMA and glass. Conventional theories namely, Young's equation and Owens-Wendt approach were corroborated with experimentally observed results. It was found that that experimental values vary largely with the conventional theoretical model for water (drop) in oil (viscous surrounding medium) on PMMA substrate. However, oil (drop) in water medium on PMMA substrate do not show such an anomaly. Therefore we hypothesized that a thin oil-film is sandwiched between water drop and substrate. Accordingly, we presented a modified theoretical model of Young's equation considering a thin oil film beneath the water drop originating from surrounding viscous medium. On the other hand, the standard Young's equation do not translate to the underliquid systems on a glass substrate. Also, Owens-Wendt theory could not correctly predict the underliquid contact angles on glass. Therefore similar to PMMA, we hypothesize that a thin oil film is present beneath the water drop on glass substrate. However, the modified Young's equation with thin-film consideration agrees very well with the experimental values and thereby demonstrated the presence of a thin film between a drop and glass substrate originating from the surrounding viscous medium.
Bio Inspired Surfaces And Applications
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Author : Yuehao Luo
language : en
Publisher: World Scientific
Release Date : 2016-06-21
Bio Inspired Surfaces And Applications written by Yuehao Luo and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-21 with Technology & Engineering categories.
Through millions of years' natural selection, sharkskin has developed into a kind of drag-reducing surface. This book shows how to investigate, model, fabricate and apply sharkskin's unique surface properties, creating a flexible platform for surface and materials engineers and scientists to readily adopt or adapt for their own bio-inspired materials.Rather than inundate the reader with too many examples of materials inspired by nature, sharkskin has been chosen as the center-piece to illustrate accurate 3D digital modeling of surfaces, complete numerical simulation of micro flow field, different fabrication methods, and application to natural gas pipelining. This is a must-read for any researcher or engineer involved in bio-inspired surfaces and materials studies.
Wetting And Wettability
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Author : Mahmood Aliofkhazraei
language : en
Publisher: BoD – Books on Demand
Release Date : 2015-12-16
Wetting And Wettability written by Mahmood Aliofkhazraei and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-16 with Science categories.
On the liquid 's surface, the molecules have fewer neighbors in comparison with the bulk volume. As a result, the energy interaction shows itself in the surface tension. Traditionally, the surface tension can be assumed as a force in the unit of the length which can be counted by the unit of Newton on squared meter, or energy on the units of the surface. The surface tension, implies the interface between liquid and vapor, which is an example of the surface tensions. The equilibrium between these surface tensions, decides that a droplet on a solid surface, would have a droplet form or will change to layer form. This book collects new developments in wetting and wettability science.