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Superhydrophobic surfaces, with a water contact angle >150°, have attracted both academic and industrial interest due to their wide range of applications, such as water proofing, anti-fogging, antifouling, anti-icing, fluidic drag reduction and anti-corrosion. Currently the majority of superhydrophobic coatings are created using organic chemicals with low surface energy. However, the lack of mechanical strength and heat resistance prevents the use of these coatings in harsh environments. Quality superhydrophobic coatings developed using inorganic materials are therefore highly sought after. Ceramics are of particular interest due to their high mechanical strength, heat and corrosion resistance. Such superhydrophobic coatings have recently been successfully fabricated using a variety of ceramics and different approaches, and have shown the improved wear and tribocorrosion resistance properties. This Special Issue focuses on the recent developments in the fabrication of superhydrophobic coatings and their robustness against corrosion and wear resistance, but the original work on other properties of superhydrophobic coatings are also welcome. In particular, the topics of interest include, but are not limited to: Robust superhydrophobic coatings; Coatings with super-wettability in multifunctional applications; Wetting effects on corrosion and tribology; Hierarchical Coating for wetting and modelling.
n/a --- self-cleaning --- ferrofluid drop --- surface topography --- oil-water separation --- wear resistance --- super-hydrophobic coating --- parabolic morphology --- nanocomposite --- electrochemical surface engineering --- Al2O3-coated particles --- dynamic characteristics --- superhydrophobic --- stability --- suspension --- water-lubricated bearing --- chemical stability --- corrosion protection --- low friction --- friction and wear behaviour --- lubrication performance --- electrochemical deposition --- carbon steel --- TiO2 --- magnetic field --- superhydrophobic surface --- empirical formula of friction coefficient --- rough morphology --- electroless composite coating --- HVOF --- water-repellent surfaces --- corrosion resistance --- mechanical durability --- aluminum alloy --- Ni–Co --- WS2 --- thermal spray --- surfactant --- Co–Ni coating --- damped harmonic oscillation --- anodization --- etching --- MoS2 particles --- chemical etching --- truncated cone morphology --- superhydrophobic materials --- hydrophobicity --- super-hydrophobic surface --- micro-arc oxidation --- electrodeposition
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Building on advances in miniaturization and soft matter, surface tension effects are a major key to the development of soft/fluidic microrobotics. Benefiting from scaling laws, surface tension and capillary effects can enable sensing, actuation, adhesion, confinement, compliance, and other structural and functional properties necessary in micro- and nanosystems. Various applications are under development: microfluidic and lab-on-chip devices, soft gripping and manipulation of particles, colloidal and interfacial assemblies, fluidic/droplet mechatronics. The capillary action is ubiquitous in drops, bubbles and menisci, opening a broad spectrum of technological solutions and scientific investigations. Identified grand challenges to the establishment of fluidic microrobotics include mastering the dynamics of capillary effects, controlling the hysteresis arising from wetting and evaporation, improving the dispensing and handling of tiny droplets, and developing a mechatronic approach for the control and programming of surface tension effects. In this Special Issue of Micromachines, we invite contributions covering all aspects of microscale engineering relying on surface tension. Particularly, we welcome contributions on fundamentals or applications related to:Drop-botics: fluidic or surface tension-based micro/nanorobotics: capillary manipulation, gripping, and actuation, sensing, folding, propulsion and bio-inspired solutions; Control of surface tension effects: surface tension gradients, active surfactants, thermocapillarity, electrowetting, elastocapillarity; Handling of droplets, bubbles and liquid bridges: dispensing, confinement, displacement, stretching, rupture, evaporation; Capillary forces: modelling, measurement, simulation; Interfacial engineering: smart liquids, surface treatments; Interfacial fluidic and capillary assembly of colloids and devices; Biological applications of surface tension, including lab-on-chip and organ-on-chip systems. We expect novel as well as review contributions on all aspects of surface tension-based micro/nanoengineering. In line with Micromachines' policy, we also invite research proposals that introduce ideas for new applications, devices, or technologies.
electrodynamic screen --- soft tissue --- microstructure --- mist capillary self-alignment --- droplet --- lab-on-a-chip --- mixing --- nanoprecipitation --- asymmetric surfaces --- gecko setae --- oil-water interface --- non-invasive control --- self-cleaning surface --- corrosive resistance --- micropipette-technique --- hydrophobic --- wettability gradient --- lung-surfactants --- hydrophilic --- dynamic --- vibrations --- superhydrophobic --- microasssembly --- adsorption --- wetting --- photochemical reaction --- contact line oscillation --- 355 nm UV laser --- capillary --- computational fluid dynamics --- bearing --- solutal Marangoni effect --- relaxation oscillations --- superhydrophilic --- microtexture melting --- rigid gas permeable contact lenses --- hydrophilic/superhydrophobic patterned surfaces --- polydimethylsiloxane (PDMS) replication --- microfabrication --- actuation --- droplet transport --- “droplet-interface-bilayers” --- microfluidics --- electrosurgical scalpels --- continuous-flow reactor --- air-water surface --- micromanufacturing --- surface treatment --- liquid bridge --- stereolithography --- super-hydrophobic --- two-phase flow --- hot drop --- durable --- insoluble lipids --- anti-sticking --- smart superhydrophobic surface --- droplet manipulation --- “black lipid films” --- condensation --- pick-and-place --- wettability --- gas-microbubbles --- soft robotics --- capillary pressure --- superomniphobic --- self-lubricating slippery surface --- electrowetting --- soluble surfactant --- anisotropic ratchet conveyor --- Nasturtium leaf --- droplets --- photoresponsible surfactant --- two-photon polymerization --- contact angle --- adhesion --- transport --- pick and place --- surface tension --- oil-microdroplets --- micromanipulation --- laser die transfer --- capillary gripper --- equilibrium
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This book focuses on fundamental and applied research on polymer processing and its effect on the final surface as the optimization of polymer surface properties results in the unique applicability of these over other materials. The development and testing of the next generation of polymeric and composite materials is of particular interest. Special attention is given to polymer surface modification, external stimuli-responsive surfaces, coatings, adhesion, polymer and composites fatigue analysis, evaluation of the surface quality and microhardness, processing parameter optimization, characterization techniques, among others.
thermoplastic polyurethanes blends --- pressure sensitive adhesives --- viscoelastic properties --- adhesion properties --- tack --- creep --- cohesion properties --- nano-structure functional film --- magnetron sputtering --- cellulose insulation polymer --- space charge --- hydrophobicity --- zinc oxide --- polytetrafluoroethylene --- bromoisobutyryl esterification --- cornstarch --- synthesis process --- past stability --- adhesion --- film properties --- mullite --- whiskers --- nonaqueous precipitation method --- aluminum fluoride --- polar transformation --- screw --- aspect ratio --- carbon nanotube --- dispersion --- masterbatch --- nanocomposite --- polyamide --- polyamide 6 --- halloysite nanotube --- functionalizing agent --- in situ polymerization --- melt blending --- polymorphism --- hydrothermal ageing --- polymers --- octaglycidyl-POSS --- DGEBA --- dicyandiamide --- accelerators --- corrosion --- protective coatings --- infrared spectroscopy --- rheology --- poplar wood --- waterborne UV lacquer product --- wood modification --- contact angle --- spectroscopy --- super-hydrophobic coating --- elastic sensor --- carbon nanotubes --- wearable electronics --- monitoring of breathing --- strain sensor --- polymer composite --- CNTs --- construction composite --- friction resistance --- surface state --- low dielectric constant --- PI --- irradiation --- dielectric loss --- tin compounds --- valsartan --- poly(vinyl chloride) --- additives --- average molecular weight --- weight loss --- functional group index --- PET --- polymer --- plasma jet --- tilted application --- ROS distribution --- UV --- VUV --- epoxy --- Joule heating --- fast curing --- accelerated forming --- shape memory --- Acrylonitrile Butadiene Styrene --- sound absorption --- 3D printing technology --- frequency --- thickness --- air gap --- polyvinyl alcohol --- cationic polyacrylamide --- polyvinyl chloride --- azodicarbonamide --- micro-structure --- diffusion plate --- micro injection molding --- grinding --- ethylene-octene-copolymer --- carbon fibers --- polyaniline --- polypyrrole --- thermoelectric composites --- surface coating --- dopamine hydrochloride --- graphene oxide --- surgical suture --- friction --- Poly(vinylidene chloride-co-acrylonitrile) (P(VDC-co-AN )) --- thermo-dynamic surface characterization --- surface free energy --- inverse gas chromatography --- visual traits --- computer vision and image processing --- basalt fiber --- epoxy composite --- glass transition temperature --- DMA --- TMA --- creep recovery --- stress-relaxation --- heterogeneous nucleation --- cell morphology --- injection molding foaming --- composite materials --- visualization --- gloss transition defect --- surface defect --- surface gloss --- shrinkage --- mold surface replication --- surface analysis --- injection molding --- polymer surface modification --- hydrophobic properties --- optimization --- mathematical modeling --- poly(ethylene glycol) (PEG) --- conjugation --- N,N′-disuccinimidyl carbonate (DSC) --- immobilization --- surface modification --- ultra-high molecular weight polyethylene --- cellulose nanofiber --- bionanocomposite --- melt-blending --- ethanol mixing
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This book focuses on fundamental and applied research on polymer processing and its effect on the final surface as the optimization of polymer surface properties results in the unique applicability of these over other materials. The development and testing of the next generation of polymeric and composite materials is of particular interest. Special attention is given to polymer surface modification, external stimuli-responsive surfaces, coatings, adhesion, polymer and composites fatigue analysis, evaluation of the surface quality and microhardness, processing parameter optimization, characterization techniques, among others.
Research & information: general --- Biology, life sciences --- thermoplastic polyurethanes blends --- pressure sensitive adhesives --- viscoelastic properties --- adhesion properties --- tack --- creep --- cohesion properties --- nano-structure functional film --- magnetron sputtering --- cellulose insulation polymer --- space charge --- hydrophobicity --- zinc oxide --- polytetrafluoroethylene --- bromoisobutyryl esterification --- cornstarch --- synthesis process --- past stability --- adhesion --- film properties --- mullite --- whiskers --- nonaqueous precipitation method --- aluminum fluoride --- polar transformation --- screw --- aspect ratio --- carbon nanotube --- dispersion --- masterbatch --- nanocomposite --- polyamide --- polyamide 6 --- halloysite nanotube --- functionalizing agent --- in situ polymerization --- melt blending --- polymorphism --- hydrothermal ageing --- polymers --- octaglycidyl-POSS --- DGEBA --- dicyandiamide --- accelerators --- corrosion --- protective coatings --- infrared spectroscopy --- rheology --- poplar wood --- waterborne UV lacquer product --- wood modification --- contact angle --- spectroscopy --- super-hydrophobic coating --- elastic sensor --- carbon nanotubes --- wearable electronics --- monitoring of breathing --- strain sensor --- polymer composite --- CNTs --- construction composite --- friction resistance --- surface state --- low dielectric constant --- PI --- irradiation --- dielectric loss --- tin compounds --- valsartan --- poly(vinyl chloride) --- additives --- average molecular weight --- weight loss --- functional group index --- PET --- polymer --- plasma jet --- tilted application --- ROS distribution --- UV --- VUV --- epoxy --- Joule heating --- fast curing --- accelerated forming --- shape memory --- Acrylonitrile Butadiene Styrene --- sound absorption --- 3D printing technology --- frequency --- thickness --- air gap --- polyvinyl alcohol --- cationic polyacrylamide --- polyvinyl chloride --- azodicarbonamide --- micro-structure --- diffusion plate --- micro injection molding --- grinding --- ethylene-octene-copolymer --- carbon fibers --- polyaniline --- polypyrrole --- thermoelectric composites --- surface coating --- dopamine hydrochloride --- graphene oxide --- surgical suture --- friction --- Poly(vinylidene chloride-co-acrylonitrile) (P(VDC-co-AN )) --- thermo-dynamic surface characterization --- surface free energy --- inverse gas chromatography --- visual traits --- computer vision and image processing --- basalt fiber --- epoxy composite --- glass transition temperature --- DMA --- TMA --- creep recovery --- stress-relaxation --- heterogeneous nucleation --- cell morphology --- injection molding foaming --- composite materials --- visualization --- gloss transition defect --- surface defect --- surface gloss --- shrinkage --- mold surface replication --- surface analysis --- injection molding --- polymer surface modification --- hydrophobic properties --- optimization --- mathematical modeling --- poly(ethylene glycol) (PEG) --- conjugation --- N,N′-disuccinimidyl carbonate (DSC) --- immobilization --- surface modification --- ultra-high molecular weight polyethylene --- cellulose nanofiber --- bionanocomposite --- melt-blending --- ethanol mixing
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