Facile Repair of Anti‐Corrosion Polymeric Composite Coatings Based on Light Triggered Self‐Healing

Ma, Yue; Yang, Yuman; Cao, Daruo; Fang, Jun; Zhu, Cheng; Yang, Meng; Fang, Liang; Lü, Chunhua; Xu, Zhongzi

doi:10.1002/mame.202170032

Cited by 10 publications

(4 citation statements)

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“…[ 38 ] However, the studies above are single fluorescent color change and cannot be erased and rewritten. Meanwhile, as the fluorescence response through photo‐crosslinking will be damaged inevitably during use, [ 39 ] the research on multi‐color fluorescent coatings with self‐healing for multiple information storage is still less reported, which is essential to applications such as multiple encoding and transfer of information.…”

Section: Introductionmentioning

confidence: 99%

Photochromic Polyurethane Coatings with Cross‐Linked Structure and Self‐Healing Behavior Based on the FRET Effect

Liu

Tian

et al. 2023

Macromol. Rapid Commun.

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Intelligent fluorescent coatings have received widespread attention in the encryption technique field such as anti‐counterfeit, while the traditional fluorescent coatings are easy to be damaged by external force. In this study, the fluorescent and self‐healing anti‐counterfeit coatings are prepared after rational molecular design. Two polymers containing fluorescent groups, including polyurethane containing the anthracene (AN) side group and polyimide containing the naphthalenediimide (NDI) structure are synthesized to realize multiple color changes with fluorescence through simply blending. Due to the overlapping fluorescence spectra of the groups, enabling the fluorescence resonance energy transfer effect (FRET), the coating with different group ratios exhibits tunable fluorescence under the same excitation light, providing diverse patterns. Moreover, due to the reversible photo‐crosslinking and thermal de‐dimerization properties of anthracene, the recording, erasure, and rewriting of the surface pattern can be realized, and the fluorescent anti‐counterfeit coatings exhibit excellent self‐healing properties after cross‐linking due to the FRET effect, which solves the problem of poor healing and ensures the stability and integrity. The fluorescent coating with cross‐linked structure and self‐healing behavior based on the FRET effect greatly expands the functional applications of traditional polyurethane materials.

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Section: Introductionmentioning

confidence: 99%

Photochromic Polyurethane Coatings with Cross‐Linked Structure and Self‐Healing Behavior Based on the FRET Effect

Liu

Tian

et al. 2023

Macromol. Rapid Commun.

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“…In the former, material cracks are repaired under light conditions of a specific wavelength by photoresponsive groups or fillers that promote the migration, rearrangement, or generation of new covalent/noncovalent bonds. [ 4,5 ] The latter type realizes self‐healing by embedding a healing agent container with a photoresponsive property or a repair agent with light‐curing characteristics in the material.…”

Section: Introductionmentioning

confidence: 99%

Photoresponsive Self‐Healing Epoxy Composites with Azobenzene Grafted Mesoporous Silica for Controlled Release and Visualization

Zhou

Chen

et al. 2022

Macro Materials & Eng

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The substantial progress made in extrinsic self‐healing has been limited to microcapsules containing heat‐active polymerizable monomers. Fabrication of self‐healing microvascular and nanoparticle systems that are responsive to light is, therefore, an important task. In this study, using azobenzene‐grafted mesoporous SBA‐15 (Azo‐SBA) as the functional nanocontainer to adsorb a photoactive repair agent (glycidyl methacrylate, GMA)(GMA@Azo‐SBA), a facile yet feasible strategy is demonstrated to prepare photoresponsive self‐healing epoxy composites. The resulting composite integrates the controllable fixation and release of the repair agent driven by the isomerization of azobenzene and photo‐induced self‐healing properties under UV irradiation. The hydrogenated epoxy resin composite, incorporated with isophorone diamine (IPDA) as the curing agent and 2 wt.% GMA@Azo‐SBA and 4 wt.% photoinitiator, exhibits desirable self‐healing properties; the microcracks of the composite can be completely repaired after self‐healing for 15 min. In addition, the pyrene‐modified GMA monomer with fluorescence characteristics as a fluorescent probe is further employed to successfully visualize the fixation and release process of the repair agent under UV irradiation.

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“…To realize the non-contact, [16][17][18] remotely controllable, [19] and locally precise shape manipulation, [20] the light-responsive solid-state plasticity of the thermoset polymers should be investigated. Currently, the light-responsive properties of the materials can be mainly obtained by incorporating photothermal fillers such as MXene, [21][22][23][24][25] graphene, [26][27][28][29] carbon nanotubes, [30][31][32][33][34] gold nanoparticles [35,36] into the polymers. However, the addition of photothermal fillers into the polymers will inevitably lead to some side effects, which may change the overall structure of the material and thus destroy the mechanical performance.…”

Section: Introductionmentioning

confidence: 99%

“…However, the addition of photothermal fillers into the polymers will inevitably lead to some side effects, which may change the overall structure of the material and thus destroy the mechanical performance. Moreover, researchers have mainly focused on the light-responsive shape memory [22,34,[37][38][39][40][41][42] and self-healing properties [9,10,26,28,[43][44][45] of polymers, and there are few studies about the light-responsive solid-state plasticity of the thermoset polymers.…”

Section: Introductionmentioning

confidence: 99%

Thermal/Near‐Infrared Light Dual‐Responsive Reconfigurable and Recyclable Polythiourethane/CNT Composite with Simultaneously Enhanced Strength and Toughness

Zhao

Yue

Huang

et al. 2022

Macromol. Rapid Commun.

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Thermoset polymers cross‐linked by dynamic covalent bonds are recyclable and reconfigurable based on solid‐state plasticity, resulting in less waste and environmental pollution. However, most thermoset polymers previously reported show thermal‐responsive solid‐state plasticity, depending much on external conditions and not allowing for local shape modulation. Herein, the isocyanate modified carbon nanotubes (CNTs‐NCO) are introduced into the polythiourethane (PCTU) network with multiple dynamic covalent bonds by in situ polymerization to prepare the composite with thermal/light dual‐responsive solid‐state plasticity, reconfigurability, and recyclability. The introduction of CNTs‐NCO simultaneously strengthens and toughens the PCTU composite. Moreover, based on the photothermal properties and light‐responsive solid‐state plasticity, the PCTU/CNTs composite or bilayer sample can achieve complex permanent shape by locally precise shape regulation without affecting other parts. This work provides a simple and reliable method for preparing high‐performance polymer composite with light‐responsive solid‐state plasticity, which may be applied in the fields of sensing and flexible electronics.

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Facile Repair of Anti‐Corrosion Polymeric Composite Coatings Based on Light Triggered Self‐Healing

Cited by 10 publications

References 0 publications

Photochromic Polyurethane Coatings with Cross‐Linked Structure and Self‐Healing Behavior Based on the FRET Effect

Photochromic Polyurethane Coatings with Cross‐Linked Structure and Self‐Healing Behavior Based on the FRET Effect

Photoresponsive Self‐Healing Epoxy Composites with Azobenzene Grafted Mesoporous Silica for Controlled Release and Visualization

Thermal/Near‐Infrared Light Dual‐Responsive Reconfigurable and Recyclable Polythiourethane/CNT Composite with Simultaneously Enhanced Strength and Toughness

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