Download or read book A Comparison Between Self cleaning Properties Via Rolling Droplets and Condensation on Superhydrophobic Surfaces written by David Leland Miller and published by . This book was released on 2017 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superhydrophobic (SH) surfaces are super water repellent surfaces on which a droplet of water will bead up like a marble and roll off the surface with minimal tilting of the surface. This is caused by the combination of a hydrophobic coating and a rough surface structure. To achieve thermodynamic stability, surface tension of the water pulls the droplet into this shape to minimize the contact area between the droplet and the surface. This creates a high contact angle (CA) between the droplet and the surface and a low sliding angle (SA) of which the droplet begins to roll off the surface. SH surfaces have a variety of potential applications such as drag reduction, anti-icing, improved heat transfer through condensation, and self-cleaning. Numerous reports have been dedicated to exploring the fluid dynamic behavior of water droplets on SH surfaces. This thesis focuses on exploring the self-cleaning properties of SH surfaces. Surfaces contaminated with salt, tobacco, and pollen are cleaned by rolling water droplets over the surface or condensing water on the surface such that when large enough, these droplets roll away due to gravity. SH surfaces explored here are composed of micro-scale or nano-scale rib and cavity structures and and are compared with smooth, hydrophobic surfaces with a similar hydrophobic coating.
Download or read book Superhydrophobic Surfaces written by Alain Carré and published by BRILL. This book was released on 2009-04-24 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superhydrophobic surfaces (water contact angles higher than 150º) can only be achieved by a combination of hydrophobicity (low surface energy materials) with appropriate surface texture. In nature one can find an array of impressive and elegant examples of superhydrophobic surfaces. For example, on a lotus leaf rain drops bounce off after impact, then entirely roll off the lotus leaf and drag along any dirt particles, without leaving residues. The artificial design of superhydrophobic and self-cleaning surfaces has become an extremely active area of fundamental and applied research.This book presents both fundamental and applied aspects of superhydrophobic surfaces. It describes also different strategies for making superhydrophobic surfaces from a large diversity of materials (polymers, metals and other inorganic materials, composites) and processes (lithographic techniques, electrochemical processes, self-assembly processes, colloidal particles, sol-gel processes, nanofilaments, or simple scraping).A bountiful of information is covered in this book which represents cumulative wisdom of many world-renowned researchers in the fascinating and burgeoning area of superhydrophobic surfaces.
Download or read book 68th Conference on Glass Problems Volume 29 Issue 1 written by Charles H. Drummond, III and published by John Wiley & Sons. This book was released on 2011-02-08 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a state-of-the-art collection of recent papers on glass problems as presented at the 68th Conference on Glass Problems at The Ohio State University. Topics include manufacturing, glass melters, combustion, refractories, and new developments.
Download or read book Dropwise Condensation on an Ultraphobic ETFE Coated Copper Pipe Surface that Enhances Heat Flow and Increases Fresh Water Production on a Smaller Surface Area written by Tareq Isam Ismail and published by . This book was released on 2015 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lotus is a thing of beauty, a symbol of awakening to the spiritual reality of life in Hinduism and Buddhism, and creation and rebirth for the Egyptians. Also associated with purity since it is able to emerge from murky waters in the morning and be perfectly clean. Water, the number one most important resource in the world for without it all life will die. The connection between the lotus and creation of pure potable (life sustaining) water is the underlying focus of this research. It is well known that some plant leaves just can't get wet or dirty. These leaves such as the lotus leaf have superhydrophobic surfaces. Water drops that fall or develop on them bead up and roII off. These leaves not only stay dry, but the droplets pick up small particles of dirt as they roll, so that the lotus leaves are even self-cleaning. Using a specially coaled standard copper pipe this research presents a new (patent pending) coating and application technique based on the lotus leaf's ability to transform the humidity in the air into water droplets that form more rapidly and shed faster than any other known technique. Implementation of this invention will aid in the supply of potable water throughout the world. The coating used is Ethylene tetrafluoroethylene (ETFE), a fluorine based plastic (i.e., not fully fluoridated). It is a copolymer of ethylene and tetrafluoroethylene. ETFE can function at the constant temperature of 149°C (300°F) and has excellent chemical resistance. ETFE resin is the toughest of all the fluoroplastics and it can be applied as thick as 1,000[mu] (40 mils). In this dissertation, we review polymer's adhesion and wetting properties, modern methods, and techniques to modify surfaces that are used to produce superhydrophobic materials. Also we explain the surface chemistry and wetting of hierarchal structure composed of microstructures and nanostructure that are produced via sand blasting of a copper pipe and hot embossing of Ethylene tetrafluoroethylene (ETFE) substrates. This dissertation introduces a new NANO technology that uses Ethylene tetrafluoroethylene (ETFE) coating surfaces that can stay dry and clean themselves by replicating the self-cleaning technique and properties of lotus leaf. This new nano technology, once coated on a pipe, will enhance the heat flow through the pipe's surface while cold water runs through the pipe, producing approximately five times the amount of condensation on pipe than any current method without having to change the size of the pipes. This Lotus leaf effect is achieved by using a fluorine based polymer, ETFE, with source-based name of poly(ethene-cotetrafluoroethene) and International Union of Pure and Applied Chemistry (IUPAC) name poly(1,1,2,2-tetrafluorobutane-1,4-diyl) treatments on structured surfaces with compositions containing combination of nano-scale and micro-scale particulates. This technology will increase fresh water production that could be used for human consumption, farming, and power plant and nuclear energy cooling towers.
Download or read book Green Polymer Composites Technology written by Inamuddin and published by CRC Press. This book was released on 2016-11-03 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive introduction to "green" or environmentally friendly polymer composites developed using renewable polymers of natural origin such as starch, lignin, cellulose acetate, poly-lactic acid (PLA), polyhydroxylalkanoates (PHA), polyhydroxylbutyrate (PHB), etc., and the development of modern technologies for preparing green composites with various applications. The book also discusses major applications of green polymer composites in industries such as medicine, biotechnology, fine chemicals and engineering.
Download or read book Robotics Advances in Research and Application 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: Robotics—Advances in Research and Application: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Autonomous Robotics. The editors have built Robotics—Advances in Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Autonomous Robotics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Robotics—Advances in Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Progress in Adhesion and Adhesives written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2018-06-25 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the ever-increasing amount of research being published, it is a Herculean task to be fully conversant with the latest research developments in any field, and the arena of adhesion and adhesives is no exception. Thus, topical review articles provide an alternate and very efficient way to stay abreast of the state-of-the-art in many subjects representing the field of adhesion science and adhesives. Based on the success of the preceding volumes in this series “Progress in Adhesion and Adhesives”), the present volume comprises 12 review articles published in Volume 5 (2017) of Reviews of Adhesion and Adhesives. The subject of these 12 reviews fall into the following general areas. Nanoparticles in reinforced polymeric composites. Wettability behavior and its modification, including superhydrophobic surfaces. Ways to promote adhesion, including tuber adhesion. Adhesives and adhesive joints Dental adhesion. The topics covered include: Nanoparticles as interphase modifiers in fiber reinforced polymeric composites; fabrication of micro/nano patterns on polymeric substrates to control wettability behavior; plasma processing of aluminum alloys to promote adhesion; UV-curing of adhesives; functionally graded adhesively bonded joints; adhesion between unvulgarized elastomers; electrowetting for digital microfluidics; control of biofilm at the tooth-restoration bonding interface; easy-to-clean superhydrophobic coatings; cyanoacrylates; promotion of resin-dentin bond longevity in adhesive dentistry; and effects of nanoparticles on nanocomposites Mode I and Mode II fractures.
Download or read book Superhydrophobic Surfaces written by Mehdi Khodaei and published by . This book was released on 2020-07 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Nanotechnology written by M. H. Fulekar and published by CRC Press. This book was released on 2017-10-30 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental nanotechnology is considered to play a key role in shaping of current environmental engineering and science practices. This book titled "Environmental Nanotechnology" covers the advanced materials, devices, and system development for use in the environmental protection. The development of nano-based materials, understanding their chemistry and characterization using techniques like X- Ray diffraction, FT-IR, EDX, scanning electron microscope (SEM), transmission electron microscope (TEM), high resolution-TEM, etc is included. It also highlights the scope for their applications in environmental protection, environmental remediation and environmental biosensors for detection, monitoring and assessment. Key Features: Covers basic to advanced Nano-based materials, their synthesis, development, characterization and applications and all the updated information related to environmental nanotechnology. Discusses implications of nanomaterials on the environment and applications of nanotechnology to protect the environment. Illustrates specific topics such as ethics of nanotechnology development, Nano-biotechnology, and application in wastewater technology. Includes applications of nanomaterials for combating global climate change and carbon sequestration. Gives examples of field applications of environmental nanotechnology. This book covers advanced materials, devices, and system developments for use in environmental protection. The development of nano-based materials, understanding its chemistry and characterization by the use of X-Ray diffraction, FT-IR, EDX, scanning electron microscope (SEM), transmission electron microscope (TEM), and high resolution-TEM give the scope for their application in environmental protection, environmental remediation, and environmental biosensors for detection, monitoring, and assessment. The green chemistry based on nano-based materials prevents pollution and controls environmental contaminants.
Download or read book Superhydrophobic Surfaces written by Russell J. Crawford and published by Elsevier. This book was released on 2015-02-19 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superhydrophobic Surfaces analyzes the fundamental concepts of superhydrophobicity and gives insight into the design of superhydrophobic surfaces. The book serves as a reference for the manufacturing of materials with superior water-repellency, self-cleaning, anti-icing and corrosion resistance. It thoroughly discusses many types of hydrophobic surfaces such as natural superhydrophobic surfaces, superhydrophobic polymers, metallic superhydrophobic surfaces, biological interfaces, and advanced/hybrid superhydrophobic surfaces. Provides an adequate blend of complex engineering concepts with in-depth explanations of biological principles guiding the advancement of these technologies Describes complex ideas in simple scientific language, avoiding overcomplicated equations and discipline-specific jargon Includes practical information for manufacturing superhydrophobic surfaces Written by experts with complementary skills and diverse scientific backgrounds in engineering, microbiology and surface sciences
Download or read book Biotechnologies and Biomimetics for Civil Engineering written by Fernando Pacheco Torgal and published by Springer. This book was released on 2014-08-16 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Putting forward an innovative approach to solving current technological problems faced by human society, this book encompasses a holistic way of perceiving the potential of natural systems. Nature has developed several materials and processes which both maintain an optimal performance and are also totally biodegradable, properties which can be used in civil engineering. Delivering the latest research findings to building industry professionals and other practitioners, as well as containing information useful to the public, ‘Biotechnologies and Biomimetics for Civil Engineering’ serves as an important tool to tackle the challenges of a more sustainable construction industry and the future of buildings.
Download or read book Handbook of Research on Tribology in Coatings and Surface Treatment written by Pakseresht, Amirhossein and published by IGI Global. This book was released on 2022-03-25 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances are continuously being made in applying the coatings and surface treatments by different techniques to reduce the damages from tribology. Engineers need more detailed information to compare the capability of each coating process in wear resistant and lubrication applications. It is also important to focus on the concepts of tribology in various applications such as the manufacturing process, bio implants, machine elements, and corrosive environments. The need for a comprehensive resource addressing these findings in order to improve wear resistance is unavoidable. The Handbook of Research on Tribology in Coatings and Surface Treatment evaluates the latest advances the fabrication of wear-resistant and lubricant coatings by different techniques and investigates wear-resistant coatings and surface treatments in various applications such as the automobile industry. Covering a wide range of topics such as lubricant coatings and wearable electronic devices, it is ideal for engineers, industry professionals, researchers, academicians, scholars, practitioners, instructors, and students.
Download or read book Recent Advances in Mechanical Engineering written by Anoop Kumar Shukla and published by Springer Nature. This book was released on 2023-06-18 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the select proceedings of the 3rd Biennial International Conference on Future Learning Aspects of Mechanical Engineering (FLAME) 2022. It aims to provide a comprehensive and broad-spectrum picture of the state-of-the-art research and development in thermal, fluids, energy and process engineering, mechatronics, control and robotics, material science and engineering, solid mechanics and structural engineering, dynamics and control, engineering design, manufacturing and industrial engineering, automobile engineering. This volume will prove a valuable resource for researchers and professionals in mechanical engineering and allied fields.
Download or read book Solid State Sensors Actuators and Microsystems Workshop 2010 written by and published by . This book was released on 2010 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroless Plating written by Glenn O. Mallory and published by William Andrew. This book was released on 1990 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 21st Century Surface Science written by Phuong Pham and published by BoD – Books on Demand. This book was released on 2020-11-26 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface sciences elucidate the physical and chemical aspects of the surfaces and interfaces of materials. Of great interest in this field are nanomaterials, which have recently experienced breakthroughs in synthesis and application. As such, this book presents some recent representative achievements in the field of surface science, including synthesis techniques, surface modifications, nanoparticle-based smart coatings, wettability of different surfaces, physics/chemistry characterizations, and growth kinetics of thin films. In addition, the book illustrates some of the important applications related to silicon, CVD graphene, graphene oxide, transition metal dichalcogenides, carbon nanotubes, carbon nanoparticles, transparent conducting oxide, and metal oxides.
Download or read book Sol Gel Materials for Energy Environment and Electronic Applications written by Suresh C. Pillai and published by Springer. This book was released on 2017-02-16 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides expert coverage of the state-of-the-art in sol-gel materials for functional applications in energy, environment and electronics. The use of sol-gel technology has become a hotbed for cutting edge developments in many fields due to the accessibility of advanced materials through low energy processes. The book offers a broad view of this growing research area from basic science through high-level applications with the potential for commercialization and industrial use. Taking an integrated approach, expert chapters present a wide range of topics, from photocatalysts, solar cells and optics, to thin films and materials for energy storage and conversion, demonstrating the combined use of chemistry, physics, materials science and engineering in the search for solutions to some of the most challenging problems of our time.
