Formation of zwitterionic coatings with an aqueous lubricating layer for antifogging/anti-icing applications

Tao, Chao; Bai, Shuo; Li, Xiaohui; Li, Chuan; Ren, Lixia; Zhao, Yunhui; Yuan, Xiaoyan

doi:10.1016/j.porgcoat.2017.11.002

Cited by 66 publications

(61 citation statements)

References 51 publications

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“…1,3 One way to avoid fog formation is to control the temperature and humidity of the environment. 1 Another approach is to use antifog coatings, 1,2,4 which are preferable because of lower cost and energy consumption. Antifog coatings can be external, where the antifog is applied using spray or dip coating on the surface, or internal, where the antifog is incorporated by compounding.…”

Section: Introductionmentioning

confidence: 99%

Engineering of Durable Antifog Thin Coatings on Plastic Films by UV-Curing of Proteinoid Prepolymers with PEG-Diacrylate Monomers

et al. 2019

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Fog formation on transparent surfaces constitutes a major challenge in several optical applications, such as plastic packaging, lenses, mirrors, and windshields. To overcome this problem, we prepared and characterized durable antifog thin coatings on plastic films such as polyethylene terephthalate (PET). Proteinoids are biocompatible random polymers made of α-amino acids by thermal step-growth polymerization. Proteinoid prepolymers were prepared by adding activated double bonds to proteinoids via the Michael addition reaction. A series of thin antifog cross-linked coatings were prepared by spreading on PET films with a Mayer rod various mixtures of the proteinoid prepolymers, polyethylene glycol diacrylate, and a photoinitiator, followed by UV-curing of the dried coatings. The antifog properties of the coatings were determined by the contact angle, roughness, haze, and gloss measurements, as well as hot and cold fog tests, to examine the optical properties of the films under fog formation conditions. Mechanical properties such as adhesion, robustness, and abrasion resistance of the antifog coatings were examined by tape, knife-scratch, and sandpaper abrasion tests. The effect of coating composition, wettability, and roughness on the antifog properties of the coated PET films was elucidated. The formula was optimized, and the corresponding UV-cured antifog cross-linked thin coating exhibited transparency with good adhesion and excellent durable antifog performance.

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Section: Introductionmentioning

confidence: 99%

Engineering of Durable Antifog Thin Coatings on Plastic Films by UV-Curing of Proteinoid Prepolymers with PEG-Diacrylate Monomers

et al. 2019

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“…It could be verified that there was nonfreezable bound water in most of the copolymers, similar to our previous studies. 20,21 However, for P(V- co -P), it was difficult to distinguish freezable bound water and freezable free water in the DSC curve.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the total bound water contents showed similar results about 0.32–0.40 mg/mg, suggesting that all the copolymers containing VCap, VP, and SBMA with or without POSS may have similar situations of polymer–water interactions at a molecular level, which agreed with our previous reports. 20,21…”

Section: Resultsmentioning

confidence: 99%

Amphiphilic Copolymers Containing POSS and SBMA with N-Vinylcaprolactam and N-Vinylpyrrolidone for THF Hydrate Inhibition

Zhao

et al. 2018

ACS Omega

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Icelike gas hydrates deposited in the pipelines under low temperatures and high pressures could remarkably reduce the transport efficiency, and a low dosage of water-soluble polymers could act as kinetic hydrate inhibitors (KHIs) to prevent gas hydrate formation. It was believed that the hydrophobic moiety in the water-soluble polymers played a vital role in enhancing the KHI performance. In this work, amphiphilic copolymers containing hydrophobic polyhedral oligomeric silsesquioxane (POSS) and superhydrophilic sulfobetaine methacrylate (SBMA) as well as N -vinylcaprolactam (VCap) and N -vinylpyrrolidone (VP) were prepared, and an efficient effect of the obtained amphiphilic copolymers on tetrahydrofuran (THF) hydrate inhibition was found. When a certain amount of the amphiphilic copolymers was introduced, the THF hydrate as an analogue of structure II gas hydrates presented a prolonged induction time and gave rise to a looser state rather than a crystalline solid. Analyses of low-field nuclear magnetic resonance and differential scanning calorimetry verified that there were strong interactions between the copolymer and water molecules by incorporation of SBMA units, which could enhance the KHI properties of the prepared amphiphilic copolymers. Additionally, the hydrophobic POSS in the amphiphilic copolymers could possibly modulate the hydrophilic/hydrophobic balance, contributing to the synergistical ability of the copolymers for THF hydrate inhibition. It was suggested that the amphiphilic copolymers containing POSS and zwitterionic units with VCap or VP could have potential for the inhibition and antiaggregation of gas hydrates in the transportation pipelines.

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“…The fabrication strategy of the coatings, incorporating hydrophilic pendant groups in soft polymer for aqueous lubricating layer, was thus widely employed in similar studies. [ 39 , 47 , 106 , 115 , 116 , 117 , 118 , 119 , 120 ] Despite the great progresses made on programing QLL at interface for assisting ice removal, ice adhesion strength on these surfaces (≈20 kPa) are still beyond the super low ice adhesion threshold (10 kPa) required for ice self‐removal by its own gravitational force. Further development of surfaces with nonfrozen interfacial water layer will need to target lower ice adhesion strength.…”

Section: Dynamic Interfacesmentioning

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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Formation of zwitterionic coatings with an aqueous lubricating layer for antifogging/anti-icing applications

Cited by 66 publications

References 51 publications

Engineering of Durable Antifog Thin Coatings on Plastic Films by UV-Curing of Proteinoid Prepolymers with PEG-Diacrylate Monomers

Engineering of Durable Antifog Thin Coatings on Plastic Films by UV-Curing of Proteinoid Prepolymers with PEG-Diacrylate Monomers

Amphiphilic Copolymers Containing POSS and SBMA with N-Vinylcaprolactam and N-Vinylpyrrolidone for THF Hydrate Inhibition

Dynamic Anti‐Icing Surfaces (DAIS)

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