Mechanically robust, self-healing superhydrophobic anti-icing coatings based on a novel fluorinated polyurethane synthesized by a two-step thiol click reaction

Fu, Kang; Lu, Chuan; Liu, Yibin; Zhang, Hao; Zhang, Baoliang; Zhang, Hepeng; Zhou, Fengtao; Zhang, Qiuyu; Zhu, Bao

doi:10.1016/j.cej.2020.127110

Cited by 116 publications

(69 citation statements)

References 44 publications

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“…By virtue of their outstanding mechanical properties, selfhealing performance, resilience and biocompatibility, 1,2 polyurethane elastomers find extensive applications in areas such as damping materials, [3][4][5] adhesives, 6,7 self-healing coatings, [8][9][10] flexible electronics [11][12][13] and 3D printing. 14,15 PU elastomers can be classified into two categories: 16 thermoplastic and thermoset PU elastomers.…”

Section: Introductionmentioning

confidence: 99%

Mechanically robust, creep-resistant, intrinsic antibacterial and reprocessable dynamic polyurethane networks based on azine moieties

Han

Zhou

Bai

et al. 2022

Mater. Chem. Front.

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Section: Introductionmentioning

confidence: 99%

Mechanically robust, creep-resistant, intrinsic antibacterial and reprocessable dynamic polyurethane networks based on azine moieties

Han

Zhou

Bai

et al. 2022

Mater. Chem. Front.

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“…Fu et al prepared a fluorine-modified polyurethane through a two-step thiol click reaction, and blended it with silica nanoparticles to prepare a superhydrophobic coating with high mechanical stability. This coating maintained superhydrophobicity after 30 m of sandpaper friction and 450 times of tape peeling [22]. Masood et al used high-impact polystyrene to improve the adhesion of the coating to the substrate.…”

Section: Introductionmentioning

confidence: 99%

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

Li¹,

Liu²,

Zhang³

et al. 2022

Mater. Res. Express

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The practical application of superhydrophobic coatings has been greatly restricted due to the complicated preparation and fragile hierarchical structures on the surface. In this study, we prepared a robust superhydrophobic coating with a double-layer structure via a low-cost and facile method, adhering the non-wettability layer composed of silica nanoparticles and fluorine-modified epoxy resin to a binder resin layer on aluminium. The fluorine-modified epoxy resin with low surface energy can fix the silica nanoparticles after curing and cross-link with the adhesive layer. When the SiO2 content in the surface layer is 40%, the water contact angle (WCA) of the coating is 162°, and the sliding angle (SA) is 2°. In the mechanical performance test, the durable coating can remain superhydrophobic even after 260 cycles of friction or 160 cycles of tape peeling. In addition, the superhydrophobic coating with self-cleaning and anti-fouling properties also has the performance of acid-base solution resistance. Hence, the combination of the rough layer and the adhesive layer makes the practical application of artificial superhydrophobic coatings possible.

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“… 12 However, the introduction of fluorine-containing units by chemical methods involves some issues, such as time consumption and complex fabrication, limited sources and low reactivity of fluorine-containing reagents, and difficulty to control reaction conditions. 13 …”

Section: Introductionmentioning

confidence: 99%

Industrial Preparation of Self-Lubricating Polyurethane via Direct Fluorination with Gaseous Fluorine

Yang

Nie

2022

ACS Omega

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Fluorination modification is an effective way to improve the friction property of a polymer; however, current preparation of fluorine-containing polymers is limited by the high cost and complex synthesis. Here, an industrial fluorination strategy with gaseous fluorine (F 2 ) to achieve fluorine enrichment on the surface of a polyurethane (PU) sheet was demonstrated. Benefiting from the high reactivity and strong diffusion of F 2 gas, the as-prepared PU sample was characterized by the rich fluorinated surface with the slightly fluorinated bulk. As a result, the fluorinated PU combined the excellent mechanical properties of pristine PU with the unique function of the fluorine-containing polymer, where the fluorinated surface may function as a robust lubricating layer, contributing to remarkable promotion of friction property while maintaining the mechanical strength unchanged. The friction coefficient decreased to 0.5 at the dry condition and 0.1 at the wet condition from the initial value of 1 and 0.45 for the pristine PU sample. The surface manipulation via direct fluorination offers great opportunities to tailor the friction property while keeping the mechanical strength unchanged.

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Mechanically robust, self-healing superhydrophobic anti-icing coatings based on a novel fluorinated polyurethane synthesized by a two-step thiol click reaction

Cited by 116 publications

References 44 publications

Mechanically robust, creep-resistant, intrinsic antibacterial and reprocessable dynamic polyurethane networks based on azine moieties

Mechanically robust, creep-resistant, intrinsic antibacterial and reprocessable dynamic polyurethane networks based on azine moieties

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

Industrial Preparation of Self-Lubricating Polyurethane via Direct Fluorination with Gaseous Fluorine

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