Robust and durable liquid-repellent surfaces

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(20), P. 8476 - 8583

Published: Jan. 1, 2022

Liquid-repellent surfaces, such as superhydrophobic superoleophobic and slippery liquid-infused have drawn keen research interest from the communities engaged in chemical synthesis, interfacial chemistry, surface engineering, bionic manufacturing micro-nano machining. This is due to their great potential applications liquid-proofing, self-cleaning, resistance, anti-icing, water/oil remediation, biomedicine, etc. However, poor robustness durability that notably hinders real-world of surfaces remains Achilles heel. The past few years witnessed rapidly increasing publications address liquid-repellent many breakthroughs been achieved. review provides an overview recent progress made towards robust durable surfaces. First, we discuss wetting solid its generally-adopted characterisation methods, introduce typical Second, focus on various evaluation methods Third, advances design fabrication are reviewed detail. Fourth, present where these employed fields like biology daily life. Finally, possible perspectives By presenting state-of-the-art this significant fast-developing area, believe will inspire multidisciplinary scientific industrial circles develop novel can meet requirements applications.

Language: Английский

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Omniphobic liquid-like surfaces

Nature Reviews Chemistry, Journal Year: 2023, Volume and Issue: 7(2), P. 123 - 137

Published: Jan. 9, 2023

Language: Английский

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Constructing Superhydrophobicity by Self‐Assembly of SiO₂@Polydopamine Core‐Shell Nanospheres with Robust Oil‐Water Separation Efficiency and Anti‐Corrosion Performance

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(16)

Published: Jan. 31, 2023

Abstract Vulnerable robustness of superhydrophobic materials have mightily hindered their practical applications. Herein, a controllable and effective strategy is demonstrated for constructing robust superhydrophobicity with aqueous hydrophobic interaction driving self‐assembly (HIDS), using polydopamine (PDA) as the binder SiO 2 particles nano‐sized structures to enable low‐adhesive property. The proposed realizes rapid interfacial assembly PDA by manipulating wetting properties @PDA core‐shell modifier. polyurethane (PU) sponges are facilely rendered remarkable robustness, stemming from excellent adherence HIDS enhanced covalent between PU. Coated sponge possesses ultralong‐term stability during oil‐water separation, separation efficiency can be maintained at 98.8% even after 1000 cycle separations strikingly, still retained 100 abrasion ultrahigh loading pressure 49 kPa. Versatilely, coatings assembled on various substrates through scalable dip coating attaining superhydrophobicity, regardless size, roughness, chemistry, rigidity. complete water‐repellent permanent magnet Nd‐Fe‐B hold anti‐corrosion without deteriorating magnetic properties, exhibiting low corrosion current density 2.03 × 10 −8 A cm −2 , which three orders magnitude lower than that 1.30 −5 bare magnet.

Language: Английский

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Femtosecond Laser Thermal Accumulation-Triggered Micro-/Nanostructures with Patternable and Controllable Wettability Towards Liquid Manipulating

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: April 8, 2022

Versatile liquid manipulating surfaces combining patternable and controllable wettability have recently motivated considerable attention owing to their significant advantages in droplet-solid impacting behaviors, microdroplet self-removal, liquid-liquid interface reaction applications. However, developing a facile efficient method fabricate these versatile remains an enormous challenge. In this paper, strategy for the fabrication of with on Polyimide (PI) film based femtosecond laser thermal accumulation engineering is proposed. Because its micro-/nanostructures chemical composition through adjusting local accumulation, PI can be tuned from superhydrophilicity (~ 3.6°) superhydrophobicity 151.6°). Furthermore, three diverse heterogeneous were constructed various applications successfully realized, including water transport, droplet arrays, wells. This work may provide achieving efficiently multifunctional steering surfaces.

Language: Английский

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Functional PDMS Elastomers: Bulk Composites, Surface Engineering, and Precision Fabrication

Advanced Science, Journal Year: 2023, Volume and Issue: 10(34)

Published: Oct. 9, 2023

Abstract Polydimethylsiloxane (PDMS)—the simplest and most common silicone compound—exemplifies the central characteristics of its class has attracted tremendous research attention. The development PDMS‐based materials is a vivid reflection modern industry. In recent years, PDMS stood out as material choice for various emerging technologies. rapid improvement in bulk modification strategies multifunctional surfaces enabled whole new generation devices, facilitating, even transforming enormous applications, including flexible electronics, superwetting surfaces, soft actuators, wearable implantable sensors, biomedicals, autonomous robotics. This paper reviews latest advances field functional materials, with focus on added functionality their use programmable smart devices. Recent breakthroughs regarding instant crosslinking additive manufacturing are featured, exciting opportunities future highlighted. review provides quick entrance to this rapidly evolving will help guide rational design next‐generation

Language: Английский

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Making the lignocellulosic fibers chemically compatible for composite: A comprehensive review

Cleaner Materials, Journal Year: 2022, Volume and Issue: 4, P. 100078 - 100078

Published: March 31, 2022

Plant based lignocellulosic fiber, primarily consist of cellulose, hemicellulose and lignin, can be used as a reinforcing medium in polymer-basedmatrix with proper alteration. This article explores various chemical modification fiber order to make it more compatible for using the reinforcement composite materials. Mechanical properties natural depend on aspect ratio, surface morphology, adhesion between constituents etc. Chemical decreases moisture content, dimensional instability, reduces diameter which turn improves degum bundles thereby produce reaction site react hydrophobic matrix. Surface morphology modified by treatment promotes better mechanical interlocking. includes mercerization, silane treatment, acetylation, permanganate, peroxide, benzoylation, malleated coupling agent, triazine, stearic acid are rigorously discussed this article. Furthermore, recent research outcomes regarding fibers reviewed SEM images treated considered assess change matrix brought treatment. Eventually, applications broadly discussed.

Language: Английский

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Room-Temperature Self-Healing Polyurea with High Puncture and Impact Resistances

Chemistry of Materials, Journal Year: 2023, Volume and Issue: 35(4), P. 1806 - 1817

Published: Feb. 13, 2023

Polyureas are widely used as protective materials because they have good mechanical strength, toughness, and strain-rate-dependent behavior. However, the fast reaction between −NCO −NH2 component results in gelation seconds, limiting their performance regulation applications. In this study, we report a novel strategy to fabricate one-component polyurea with room-temperature self-healing, puncture resistance, impact resistance. First, latent curing agent was synthesized via Schiff base of an aliphatic diamine isobutyraldehyde. Then, were mixed directly isocyanate. Such mixture uncured storage without moisture, but it cured once contact moisture application. So, called polyurea. The exhibits self-healing properties healing efficiency up 98%. It has displacement high 15.1 cm by sharp objects. also excellent resistance dissipative energy capacity possesses can be integrated into Kevlar fabrics form flexible puncture-resistant composite combined carbon nanotubes wearable strain sensors. is expected find applications intelligent soft materials, body armor, sensors, other fields.

Language: Английский

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Underwater Bionic Self‐Healing Superhydrophobic Coating with the Synergetic Effect Of Hydrogen Bonds and Self‐Formed Bubbles

Small, Journal Year: 2024, Volume and Issue: 20(20)

Published: Jan. 4, 2024

Abstract The self‐healing ability of superhydrophobic surfaces in air has attracted tremendous additions recent years. Once the surface is damaged underwater, water seeps into gaps among micro/nano structures. film diffuses and eventually disappears during immersion without actively replenishing gas, which results impossible self‐healing. Here, an underwater coating with synergetic effect hydrogen bonds self‐formed bubbles via spraying method fabricated. movement prepared polyurethane enables microstructures to reconstruct at room temperature effervescent materials replenish gas before completely self‐healing, achieving property coating. Moreover, hydrophilic material sprayed along unmodified micron‐scaled particles because modified nano‐scale are key factors for realization An stable pressure resistance (4.9 kPa) demonstrated. This also shows excellent drag reduction, anti‐icing, anti‐corrosion properties. facile scalable offers a new route that executes recovery.

Language: Английский

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Construction of transparent, robust and haze-selectable superhydrophobic coatings with honeycomb structure

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 483, P. 149319 - 149319

Published: Feb. 6, 2024

Language: Английский

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Practical Applications of Self‐Healing Polymers Beyond Mechanical and Electrical Recovery

Advanced Science, Journal Year: 2024, Volume and Issue: 11(16)

Published: Feb. 15, 2024

Self-healing polymeric materials, which can repair physical damage, offer promising prospects for protective applications across various industries. Although prolonged durability and resource conservation are key advantages, focusing solely on mechanical recovery may limit the market potential of these materials. The unique properties self-healing polymers, such as interfacial reduction, seamless connection lines, temperature/pressure responses, phase transitions, enable a multitude innovative applications. In this perspective, diverse polymers beyond their traditional strength emphasized in sectors food packaging, damage-reporting, radiation shielding, acoustic conservation, biomedical monitoring, tissue regeneration is explored. With regards to commercialization challenges, including scalability, robustness, performance degradation under extreme conditions, strategies overcome limitations promote successful industrialization discussed. Furthermore, impacts materials future research directions, encompassing environmental sustainability, advanced computational techniques, integration with emerging technologies, tailoring specific examined. This perspective aims inspire interdisciplinary approaches foster adoption real-life settings, ultimately contributing development next-generation

Language: Английский

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