Intrinsic self-healing organogels based on dynamic polymer network with self-regulated secretion of liquid for anti-icing

Chen, Guangmeng; Liu, Sichuan; Sun, Zhiyong; Wen, Shifeng; Feng, Tao; Yue, Zhufeng

doi:10.1016/j.porgcoat.2020.105641

Cited by 22 publications

(14 citation statements)

References 32 publications

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“…Density functional theory calculations also revealed the critical role of Cu(II) in accelerating the reversible dissociation of dimethylglyoxime-urethane. A dynamic self-healing PDMS (polydimethylsiloxane) material cross-linked by reversible urea hydrogen bonds and imine bonds (UI) was studied in our previous work [42][43]. The dynamic network consists of urea hard segments and imine soft segments.…”

Section: Introductionmentioning

confidence: 99%

Optimization of intrinsic self-healing silicone coatings by benzotriazole loaded mesoporous silica

Chen¹,

Wen²,

Ma³

et al. 2021

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Optimization of intrinsic self-healing silicone coatings by benzotriazole loaded mesoporous silica

Chen¹,

Wen²,

Ma³

et al. 2021

Surface and Coatings Technology

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“…[ 56 ] Both the thickness of the lubricant layer and the size of the embedded droplets in this substrate were controllable through polymer crosslinking strength and oil content, which offered a strategy for preparing similar substrates for improving anti‐icing performance. [ 34 , 41 , 42 , 43 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 ] Icephobic surfaces following the same strategy for surface regenerable lubricant layers indeed showed ice adhesion strength below 40 kPa, [ 41 ] with regenerated lubricating layers after 15 wiping/regenerating tests and long‐term ice adhesion strength below 70 kPa. Through a precise proportioning of polymer and oil, novel self‐lubricating organogels (SLUG) displayed extremely low ice adhesion strength of 0.4 kPa.…”

Section: Dynamic Substratesmentioning

confidence: 99%

“…Therefore, self‐responsive substrates with self‐healing functionality have been fabricated for anti‐icing purposes. [ 36 , 37 , 58 , 68 , 69 , 70 , 71 ] Such substrates showed significant improvements in mechanical durability because of the self‐healing ability of surface damages at subzero temperature to maintain their smooth topographies (Figure 3b ). One of the self‐healing substrates, Fe‐pyridinedicarboxamide‐containing PDMS (FePy‐PDMS) elastomer, exhibited low ice adhesion strength of ≈6 kPa after 50 icing/deicing cycles.…”

Section: Dynamic Substratesmentioning

confidence: 99%

Dynamic Anti‐Icing Surfaces (DAIS)

et al. 2021

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Remarkable progress has been made in surface icephobicity in the recent years. The mainstream standpoint of the reported antiicing surfaces yet only considers the ice-substrate interface and its adjacent regions being of static nature. In reality, the local structures and the overall properties of ice-substrate interfaces evolve with time, temperature and various external stimuli. Understanding the dynamic properties of the icing interface is crucial for shedding new light on the design of new anti-icing surfaces to meet challenges of harsh conditions including extremely low temperature and/or long working time. This article surveys the state-of-the-art anti-icing surfaces and dissects their dynamic changes of the chemical/physical states at icing interface. According to the focused critical ice-substrate contacting locations, namely the most important ice-substrate interface and the adjacent regions in the substrate and in the ice, the available anti-icing surfaces are for the first time re-assessed by taking the dynamic evolution into account. Subsequently, the recent works in the preparation of dynamic anti-icing surfaces (DAIS) that consider time-evolving properties, with their potentials in practical applications, and the challenges confronted are summarized and discussed, aiming for providing a thorough review of the promising concept of DAIS for guiding the future icephobic materials designs.

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“…Actually, the durability of SLIPS is an urgent issue, as lubricant depletion can be caused by accreted ice or external force. [21] Many studies have found that the SLIPS has self-repairing phenomenon, [22][23][24] which can compensate the lubricant loss. However, there is almost no systematic research on the number of self-repairs in service, which determines the durability of SLIPS in practical application.…”

Section: Introductionmentioning

confidence: 99%

Self‐Repairing Performance of Slippery Liquid Infused Porous Surfaces for Durable Anti‐Icing

Yuan

Xiang

Liu

et al. 2022

Adv Materials Inter

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Anti-icing fluids with a low freezing point, such as ethylene glycol, are widely used for aircraft. [9] The fluid is evenly sprayed on the aircraft surface, thereby reducing the freezing point of water droplets and delaying icing. However, the anti-icing fluid needs to be applied repeatedly and requires many raw materials. Consequently, the deposition and dissipation of ethylene glycol aqueous solutions has caused serious pollution to the soil and groundwater environment. [10] Recently, superhydrophobic surfaces (SHP) have attracted much attention in the field of anti-icing. [11] The SHP can trap air within the micro/nanosurface and barrier the heat transfer, [12] thus showing a Cassie state. Such surfaces can repel water drops and delay the ice nucleation, which endows them excellent anti-icing properties. However, SHP is currently unable to meet the anti-icing requirements of aircraft surfaces well. On one hand, the aircraft must pass through clouds with high water vapor content during flight, and the water can condense on the textured structure of SHP, resulting in a Wenzel state. [13] On the other hand, the supercooled water droplets will impact onto the surface of the aircraft running at high speed. Thus, the water droplets can penetrate into the textured structure of SHP, which can also lead to a Wenzel state. [14] In the Wenzel state, the ice forms an interlock with the textured surface, consequently resulting in a higher ice-adhesion strength of SHP. [15] As a result, the SHP does not mean icephobicity, especially for the in-flight icing scenario.Inspired by nepenthes, Aizenberg et al. prepared a slippery liquid infused porous surface (SLIPS), also known as an ultralubricating surface. [16] SLIPS can be created by infiltrating a porous substrate with lubricant to produce an ultra-smooth lubricant layer and this layer on the surface can suppress the anchor of ice into the solid surface. Thus, the SLIPS demonstrates low ice-adhesion [17] and low nucleation rate. [18] Silicone oil (viscosity: 50 mPa s at 25 °C, surface tension: 21.2 mN m -1 at 25 °C, density: 0.964 g cm -1 at 25 °C, vapor pressure: <7 hPa at 25 °C) is often used as the lubricant, because it is difficult to volatile, non-toxic, harmless and low price. Anodic oxidation with simplicity and efficiency is generally used for the construction of the porous surfaces of light metal materials, [19] which can be also used for preparing SLIPS. To sum up, SLIPS is an economical, convenient, low-power requirement and environmentally friendly passive anti-icing method. Additionally, the Icing accretion on aircraft surfaces has threatened the flight safety so far. Slippery liquid infused porous surface (SLIPS) is an emerging anti-icing method. Many studies have found that SLIPS has self-repairing phenomena. However, there is almost no systematic research on the number of selfrepairs in service, which determines the durability of anti-icing. Herein, the self-repairing performance of SLIPS is studied through icing-repairing and abrasion-repairing cycles. A st...

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Intrinsic self-healing organogels based on dynamic polymer network with self-regulated secretion of liquid for anti-icing

Cited by 22 publications

References 32 publications

Optimization of intrinsic self-healing silicone coatings by benzotriazole loaded mesoporous silica

Optimization of intrinsic self-healing silicone coatings by benzotriazole loaded mesoporous silica

Dynamic Anti‐Icing Surfaces (DAIS)

Self‐Repairing Performance of Slippery Liquid Infused Porous Surfaces for Durable Anti‐Icing

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