NIR light-triggered self-healing waterborne polyurethane coatings with polydopamine-coated reduced graphene oxide nanoparticles

Yu, Changjiang; Luna, Martina Salzano de; Marotta, A.; Ponti, Corinna; Esposito, I.; Scherillo, Fabio; Wang, Zhaoyi; Zhang, Xi; Xia, Hesheng; Lavorgna, Marino

doi:10.1016/j.porgcoat.2021.106499

Cited by 18 publications

(5 citation statements)

References 49 publications

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“…Yu et al synthesized polydopamine composite graphene oxide nanoparticles (mGO@PDA) to impart NIR‐responsive self‐healing properties to aqueous polyurethane coatings. [ 6 ] Experiments showed that the nanocomposite coating recovered from damage after only 30 s of NIR light irradiation. The shielding performance was enhanced to provide longer‐lasting corrosion protection for the underlying metal.…”

Section: Introductionmentioning

confidence: 99%

Rapid Synthesis of A_xWO₃ (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties

Liu,

Zhou,

Tian

et al. 2023

Adv Eng Mater

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The intrinsic reduction method is extended for the synthesis of tungsten bronzes (TBs), and monoclinic phase hydrotungsten bronze (HWO), tetragonal phase sodium tungsten bronze (NaWO) and hexagonal phase potassium tungsten bronze (KWO) are obtained. The introduction of cations brought a large number of localized state free electrons, which endowed TBs with strong near‐infrared (NIR) absorption and achieved light energy utilization covering almost the entire solar spectrum in the form of localized surface plasmon resonance (LSPR) and small polariton transfer. The strong NIR absorption enhanced the corrosion protection performance of tungsten bronze coatings, especially the HWO coating, which had an increased impedance value of 859.5% compared to the pure epoxy resin. The excellent corrosion resistance of TBs inhibitors can be derived from the strong NIR absorption enhanced photocathodic protection and local magnetic field, which improved the charge transfer resistance of the coating by nearly two orders of magnitude and greatly inhibited the charge movement in the electrochemical corrosion reaction. This study discovered the contribution of oxygen vacancy‐enhanced NIR absorption to the electrochemical anticorrosion properties, expanding the application area of TBs and making an important contribution to innovative anticorrosion strategies.

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Section: Introductionmentioning

confidence: 99%

Rapid Synthesis of A_xWO₃ (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties

Liu,

Zhou,

Tian

et al. 2023

Adv Eng Mater

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“…Recently, heat caused by the photothermal effect has been used to stimulate the self-healing ability of polymer composites. 46,47 AgNPs as noble metal nanoparticles can easily gain light-to-heat conversion ability under laser irradiation. 48 The photothermal performance of noble metal nanoparticles makes it develop the application in the fields of photo sterilization, 49 seawater desalination, 50 and selfhealing coatings.…”

Section: Introductionmentioning

confidence: 99%

“…The recovery of damage based on a noncovalent bonds system can be produced under mild conditions. Recently, heat caused by the photothermal effect has been used to stimulate the self‐healing ability of polymer composites 46,47 . AgNPs as noble metal nanoparticles can easily gain light‐to‐heat conversion ability under laser irradiation 48 .…”

Section: Introductionmentioning

confidence: 99%

Poly(methyl methacrylate‐co‐butyl acrylate) copolymer/Ag nanocomposites prepared by latex mixing for multifunctional coatings

Li,

Luo,

2023

Polymer Composites

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Inspired by mussel chemistry, we presented a facile and eco‐friendly method to synthesize silver nanoparticles (AgNPs) using dopamine as a reductant and stabilizer. The synthesized AgNPs as an antibacterial agent and photothermal filler were further introduced to random copolymers of methyl methacrylate and butyl acrylate (MMA‐co‐BA) via latex mixing. The morphology and structure of the formed AgNPs were confirmed by transmission electron microscopy (TEM), UV–Vis spectrum, and x‐ray powder diffraction (XRD). The results showed that the synthesized AgNPs were spherical in the size of 5–30 nm with the characteristic crystalline structure of AgNPs. Mechanical properties of MMA‐co‐BA were significantly enhanced by the introduction of AgNPs. The MMA‐co‐BA/Ag nanocomposite films showed antibacterial activity against E. coli and S. aureus. Moreover, the scratches on the MMA‐co‐BA/Ag nanocomposite film can be healed under infrared light irradiation, which indicated that AgNPs enhanced the self‐healing ability of the MMA‐co‐BA. This work offers a viable avenue for developing antibacterial activity and self‐healing multifunctional coatings.Highlights Silver nanoparticles modified by dopamine are introduced to acrylic copolymer. Acrylic copolymer/Ag nanocomposites exhibit antibacterial activity. Acrylic copolymer/Ag nanocomposites have photothermal performance. Acrylic copolymer/Ag nanocomposites have self‐healing ability.

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“…[49] Alternatively, the polymer itself can be able to self-repair if reversible covalent linkages are introduced in the polyurethane backbone. This is the case of WB-PUs containing disulfide [51] or Diels-Alder [13,[52][53][54][55] bonds, which can completely and quickly recover deep scratches fully restoring the original anticorrosion ability of the coating. A representative example of intrinsically self-healing WB-PU coatings is given in Figure 3a, which shows the repair of a scratched coating after a thermal treatment at 110 °C for 5 min.…”

Section: Introductionmentioning

confidence: 99%

Recent Trends in Waterborne and Bio‐Based Polyurethane Coatings for Corrosion Protection

Luna

2022

Adv Materials Inter

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polyurethanes. Different approaches have been identified for the realization of green PUs, which include-but are not limited to-renewability of the starting materials, sustainability of the synthesis itself, isocyanate-free formulations, and reduction of VOC emissions by limiting the use of organic solvents. [4] In particular, the present review deals with recent researches on two classes of green PUs, namely waterborne and bio-based formulations, focusing on their application as coatings to protect metal surfaces from corrosion. As such, manuscripts specifically addressing the synthesis and/or standard chemicophysical characterization of newly proposed formulations were not considered here. Readers interested in the synthetic aspects of green PUs can refer to recent comprehensive reviews on the topic. [5][6][7][8][9] In the following the recent relevant literature published since 2015 is critically reviewed, highlighting the main strategies pursued to develop reliable and highly performing anticorrosion coatings based on waterborne and bio-based PUs. Then, the collected data on their protective performances are discussed. Waterborne CoatingsWaterborne polyurethanes (WB-PUs) stepped out in the early 1990s driven by the increasingly strict environmental legislation in North America and Europe. [3] The use of sole water evidently solves the issue related to the huge VOC emission associated with traditional solvent-based coatings. In addition, the presence of water as one of the components removes the possibility of any toxic unreacted isocyanate in the system. [9] The introduction of hydrophilic groups in the formulation is essential to guarantee the stability of WB-PU dispersions. [10] On the other hand, it also detrimentally impacts the waterresistance of the resulting coating, hampering the full exploitation of this class of materials for anticorrosion purposes. Playing with the rich PU chemistry is clearly one possible way to tailor the coating properties, including water resistance and thus anticorrosion ability. [11][12][13] Both the polyol and the diisocyanate used for polyurethane synthesis can indeed be properly selected to maximize the coating protective efficacy. In this perspective, Li et al. found that a balanced polyether/polyester polyol ratio is optimal for anticorrosion applications. [12] Yu et al., instead, focused on the role of the diisocyanate structure, highlighting that the protective ability of WB-PU synthesized with 4,4′-dicyclohexylmethane diisocyanate outperforms Polyurethanes (PUs) have been extensively exploited for the production of protective coatings thanks to the versatility of their chemistry, which allows to adjust the coating properties depending on the final application. In the last decade, the concerns on the negative impact on the environment and human health of traditional petroleum-based and solvent-borne PUs have fostered the research on more environmentally friendly alternatives. This review article provides an overview of the recent approaches that have been profitably pu...

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NIR light-triggered self-healing waterborne polyurethane coatings with polydopamine-coated reduced graphene oxide nanoparticles

Cited by 18 publications

References 49 publications

Rapid Synthesis of A_xWO₃ (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties

Rapid Synthesis of A_xWO₃ (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties

Poly(methyl methacrylate‐co‐butyl acrylate) copolymer/Ag nanocomposites prepared by latex mixing for multifunctional coatings

Recent Trends in Waterborne and Bio‐Based Polyurethane Coatings for Corrosion Protection

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NIR light-triggered self-healing waterborne polyurethane coatings with polydopamine-coated reduced graphene oxide nanoparticles

Cited by 18 publications

References 49 publications

Rapid Synthesis of AxWO3 (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties

Rapid Synthesis of AxWO3 (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties

Poly(methyl methacrylate‐co‐butyl acrylate) copolymer/Ag nanocomposites prepared by latex mixing for multifunctional coatings

Recent Trends in Waterborne and Bio‐Based Polyurethane Coatings for Corrosion Protection

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Rapid Synthesis of A_xWO₃ (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties

Rapid Synthesis of A_xWO₃ (A = H, Na, K) Tungsten Bronze Materials with Strong Near‐Infrared Absorption and Enhanced Photoelectric Anticorrosion Properties