Magnetic particle-based super-hydrophobic coatings with excellent anti-icing and thermoresponsive deicing performance

Cheng, Tiantian; He, Rujie; Zhang, Qinghua; Zhan, Xiaoli; Chen, Fengqiu

doi:10.1039/c5ta05277g

Cited by 152 publications

(100 citation statements)

References 50 publications

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“…As shown in Figure a, chemical structures of the pristine MF sponge, Fe 3 O 4 NPs, PDA‐Fe 3 O 4 @MF, MA‐PDMS monomer, and PDMS‐Fe 3 O 4 @MF were confirmed by Fourier transform infrared (FT‐IR) spectra. Compared with the pristine MF sponge, the PDA‐Fe 3 O 4 @MF spectrum exhibited the characteristic signals of Fe‐O stretching (588 cm −1 ), PDA N‐H shearing (1592 cm −1 ), and PDA aromatic ring C–C vibration (1507 cm −1 ), demonstrating the successful codeposition of Fe 3 O 4 NPs and PDA coating. The spectrum of MA‐PDMS monomer displayed strong adsorption bands of Si‐C bond (at 1261 and 802 cm −1 ) and Si‐O‐Si bond (at 1028 and 1089 cm −1 ) .…”

Section: Resultsmentioning

confidence: 99%

Nonflammable and Magnetic Sponge Decorated with Polydimethylsiloxane Brush for Multitasking and Highly Efficient Oil–Water Separation

Liu

Wang

Feng

2019

Adv Funct Materials

171

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Developing sponge materials integrating excellent flame retardancy, multitasking separation performance, and efficient emulsion-breaking ability is significant but challenging for the remediation of oil spills causing fires and environmental damages. Herein, a superhydrophobic oil-water separation sponge material, containing a melamine-formaldehyde (MF) sponge substrate, magnetic polydopamine (PDA) coating, and branched polydimethylsiloxane (PDMS) brush, through dopamine-mediated surface initiated atom transfer radical polymerization (SI-ATRP) is fabricated. The synergistic flame resistance of the MF substrate and PDMS brush significantly improves its adaptability in fire. More importantly, the decorated PDMS brushes can effectively overcome the size mismatch between sponge macropores and tiny emulsified droplets, while remaining the intrinsic macroporous characteristic. When treating W/O emulsions, the PDMS brushes stretch up to act as "interface-breaking blades" to accelerate the coalescence of emulsified water droplets. Meanwhile, such PDMS brushes can serve as "oil-trapping tentacles" to efficiently capture oil droplets when treating O/W emulsions. Such material design synergistically contributes to satisfactory separation efficiency (98.7%) and ultrahigh permeation flux (up to 1.35 × 10 5 L m −2 h −1 ), even for treating high viscosity emulsions. Besides, the reported sponge also inherits robust durability, superior recyclability, and convenient magnetic collection. These features make the sponge promising for multitasking and highly efficient oil-water separation.

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Section: Resultsmentioning

confidence: 99%

Nonflammable and Magnetic Sponge Decorated with Polydimethylsiloxane Brush for Multitasking and Highly Efficient Oil–Water Separation

Liu

Wang

Feng

2019

Adv Funct Materials

171

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“…in ref. , obtained superhydrophobic nanocomposite films with embedded magnetic nanoparticules exhibiting 2878 s FDT at −15 °C. The highest FDT was observed by X. Zhan et al .…”

Section: Introductionmentioning

confidence: 85%

Impact of Surface Electrostatic Potential on Icephobic Properties of Nanoimprinted Flexible Polymer Foils

Frolet

Durret

Panabière

et al. 2018

Macro Chemistry & Physics

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Superhydrophobic surfaces have been fabricated on flexible fluorinated ethylene propylene (FEP) foils using nanoimprint lithography (NIL) and roughening by plasma etching. The combination of these two techniques results in hierarchical structures and superhydrophobic properties. The icephobic behavior of the surfaces has been studied with measurements of the freezing delay time (FDT) of water droplets on cooled surfaces. It is demonstrated in this paper that the variability of the FDT values is due to the electrostatic surface potential Vs. The impact of this parameter is explored and it is shown that the delay of freezing increases when the surface potential decreases from 0 to −500 V, and decreases for lower surface potentials. This decrease is related to the saturation effect of contact angle, which is well known in electrowetting literature. Contact angles analysis confirms that this saturation effect occurs around −500 V in the present experimental case. The effect of potential surface polarity is also discussed. By optimizing surface potentials of FEP hierarchical structures, it is possible to obtain FDT higher than 40 min at −15 °C.

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“…Other than that, for containers 8 Research with high brittleness such as the glass bottle, the icing of the inner content can lead to breach or destruction of the container due to the swelling of the icing content. The introduction of ELIS to packaging materials such as glass could reduce the ice accumulation by reducing the pinning spot for ice nucleation [39,40]. The carnauba wax with CO was chosen as a test surface due to better slippery performance of the coating and lower icing point of CO (approximately -20°C).…”

Section: Icing Delay Experimentmentioning

confidence: 99%

Bioinspired Edible Lubricant-Infused Surface with Liquid Residue Reduction Properties

2019

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Inspired by nature’s water-repellent plants, the superhydrophobic surface (SHS) and the lubricant-infused surface (LIS) possess potentials in various fields of application. In particular, the edible SHS and the edible LIS (ELIS) are suitable for the role of high-valued liquid food residue reduction. In this study, the ELIS was introduced through a facile spray method and direct lubricant infusion. Four types of ELISs were fabricated: carnauba wax with ethyl oleate infusion, carnauba wax with cooking oil infusion, beeswax with ethyl oleate infusion, and beeswax with cooking oil infusion. The carnauba wax-coated ELIS has better slipperiness, while the beeswax-coated ELIS has better transparency. The ethyl oleate-infused ELIS possesses ELIS to SHS transformable ability, and the cooking oil-infused ELIS also possesses better slipperiness and has the affordable advantage. Moreover, the material selection of ELIS is accessible, renewable, green, recyclable, and edible. The results illustrated that ELIS has advantages of long-term effectiveness and impact resistance over edible SHS and indicated that the ELIS can be facilitated for the manufacture of a multifunctional liquid residue reduction surface with food safety assurance.

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Magnetic particle-based super-hydrophobic coatings with excellent anti-icing and thermoresponsive deicing performance

Abstract: The multifunctional superhydrophobic surfaces incorporated with Fe3O4 exhibit excellent anti-icing and active deicing properties.

Cited by 152 publications

References 50 publications

Nonflammable and Magnetic Sponge Decorated with Polydimethylsiloxane Brush for Multitasking and Highly Efficient Oil–Water Separation

Nonflammable and Magnetic Sponge Decorated with Polydimethylsiloxane Brush for Multitasking and Highly Efficient Oil–Water Separation

Impact of Surface Electrostatic Potential on Icephobic Properties of Nanoimprinted Flexible Polymer Foils

Bioinspired Edible Lubricant-Infused Surface with Liquid Residue Reduction Properties

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