A transparent superhydrophobic coating with mechanochemical robustness for anti-icing, photocatalysis and self-cleaning

Zhu, Tianxue; Cheng, Yan; Huang, Jianying; Xiong, Jiaqing; Ge, Mingzheng; Mao, Jiajun; Li, Yi; Dong, Xiuli; Zhong, Cheng; Lai, Yuekun

doi:10.1016/j.cej.2020.125746

Cited by 286 publications

(118 citation statements)

References 45 publications

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“…Superhydrophobic and self-cleaning properties of the surface usually are derived from a very high advancing water contact angle, typically of 150°or higher, and a very low contact angle hysteresis, which is a very low sliding angle, typically below 10°. 34,35 The wetting properties of feathers were tested by placing a water droplet (2 µl) on each of the two main areas of the feather, the proximal and distal ends (Fig. 5d).…”

Section: Photographic Images)mentioning

confidence: 99%

Structural colouration in the Himalayan monal, hydrophobicity and refractive index modulated sensing

et al. 2020

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Section: Photographic Images)mentioning

confidence: 99%

Structural colouration in the Himalayan monal, hydrophobicity and refractive index modulated sensing

et al. 2020

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“…Therefore, the preparation of separation membranes with high separation efficiency, low cost, and antifouling properties has great practical significance and a great economic value. 1 − 3 As a new type of membrane material, ultrahigh-molecular-weight polyethylene (UHMWPE) has excellent comprehensive performance, such as chemical resistance, abrasion resistance, aging resistance, nontoxicity, and standing mechanical strength. 4 , 5 Therefore, exploring UHMWPE separation membranes with high separation efficiency and antifouling properties becomes a hot spot for increasing scientific researchers.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Polydopamine Particles as a Thermal Stability Modifier to Prepare Antifouling Melt Blend Composite Membranes

Liu

Zhu

Jiang³

et al. 2021

ACS Omega

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This study reports a novel, multifunctional, and easily obtained modifier to support the rapid advancements in the field of filtration. Polydopamine (PDA) particles (PDAPs) have been reported as a filler for constructing polymer composites, but because of their poor thermal stability, the use of PDAPs in high-temperature blend melt systems to construct antifouling membranes was rare. In this paper, high-thermal-stability methoxy polyethylene glycol amine (mPEG-NH2)-functionalized PDA nanoparticles (mPDAPs) were first used as a modifier in high-temperature blend melt polymer composites to construct antifouling composite membranes. First, high-thermal-stability mPDAPs with an average diameter of about 390 nm were prepared by immobilized mPEG-NH2 on the PDAP surface, then melt blend mPDAPs with ultrahigh-molecular-weight polyethylene/liquid paraffin (LP) solution and thermally reduced phase separation (TIPS) to construct antifouling membranes. A combination of properties including mechanical properties, filtration efficiency, and antifouling properties of hybrid composite membranes was investigated and demonstrated that mPDAPs were an efficient modifier for high-temperature melt blending systems. The aim of this study was to provide an effective approach to improve the membrane filtration performance by bulk hybrid modification of multifunctional nanoparticles.

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“…Recently, seeking for superhydrophobic surfaces with a function that enables to self‐restore/heal their superhydrophobicity after the damages evokes an increasing interest not least because it proposes a plausible way to improve the durability and sustainability of the superhydrophobic surface so as to effectually prolong the lifespan of the materials in practice. [ 20–33 ] In design, the strategies to restore superhydrophobic surfaces rely on the recovering of either the low‐interfacial‐energy surface chemical composite or the hierarchical surface morphology. The former strategy requires the storage of the low‐interfacial‐energy chemicals within the coatings.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, PDMS‐based polymers have been intensively applied for constructing superhydrophobic coatings due to its outstanding water‐repellency property, excellent chemical stability, and good washing/abrasion resistance. [ 31,33,46 ] DA belongs to a group of catechol compounds that widely used as the coating for both natural and synthetic substrates in a wet environment, which are believed analogously to the adhesive proteins secreted in the byssus of the marine mussels. [ 10–12,47 ] In experiments, H 2 N‐PDMS‐NH 2 , DA, and ultrasonication are found to be the key components in the synthesis.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonication‐Assisted Waterborne Synthesis of Self‐Restorable Superhydrophobic Surfaces with Prolonged Lifespan in Oil Collection

Liu

Gao

et al. 2020

Adv Materials Inter

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Self‐restorable superhydrophobic surfaces have attracted increasing attention due to their important applications. However, great challenges in an easy and rapid way to accomplish superhydrophobic surfaces with tunable self‐restorability are retained. Here, a facile yet fast strategy is presented to endow commercial substrates with self‐restorable superhydrophobic surfaces irrespective of their surface chemistry and geometry. By ultrasonicating an aqueous solution comprising poly(dimethylsiloxane), bis(3‐aminopropyl)‐terminated (H2N‐PDMS‐NH2) and dopamine hydrochloride (DA) with substrates for 30 min, superhydrophobic surfaces are yielded. Under ultrasonication, H2N‐PDMS‐NH2 is dispersed as the microdroplets and produces a weakly alkaline environment to enhance self‐polymerization of DA to polydopamine (PDA). In turn, PDA reacts with microdroplets and simultaneously anchors them to substrates, creating hierarchical morphology. The diffusion of hydrophobic H2N‐PDMS‐NH2 from the interior to the surface of the coating leads to superhydrophobic surface. This superhydrophobicity is self‐restorable after it is destroyed by air‐plasma or amphiphilic molecules, presumably because the H2N‐PDMS‐NH2 diffusion from the interior to the particles’ surface minimizes the overall interfacial‐energy. The self‐restoration is significantly accelerated by heating or rubbing the substrates. This self‐restoration offers superhydrophobic materials with a considerably prolonged life‐span, promising a wide range of applications, e.g., sustainable oil/water separation.

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A transparent superhydrophobic coating with mechanochemical robustness for anti-icing, photocatalysis and self-cleaning

Cited by 286 publications

References 45 publications

Structural colouration in the Himalayan monal, hydrophobicity and refractive index modulated sensing

Structural colouration in the Himalayan monal, hydrophobicity and refractive index modulated sensing

Multifunctional Polydopamine Particles as a Thermal Stability Modifier to Prepare Antifouling Melt Blend Composite Membranes

Ultrasonication‐Assisted Waterborne Synthesis of Self‐Restorable Superhydrophobic Surfaces with Prolonged Lifespan in Oil Collection

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