Build a bridge from polymeric structure design to engineering application of self-healing coatings: A review

Cheng, Meng; Fu, Qiang; Tan, Bin; Ma, Yue; Fang, Liang; Lu, Chunhua; Xu, Zhongzi

doi:10.1016/j.porgcoat.2022.106790

Cited by 29 publications

(20 citation statements)

References 207 publications

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“…[118] Self-healing polymers are also in demand in other application areas such as ship anti-corrosion coating, [120] soft robots, [121] the communication sector and the automation industry. [122] The key hurdle to these materials not being used commercially in structural application is that self-healing experimental data is lacking. This makes it difficult to measure its true impact and hence commercial use a challenge.…”

Section: Self-healing Applicationsmentioning

confidence: 99%

A review on self‐healing polymers and polymer composites for structural applications

et al. 2022

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Polymer composites when employed for structural applications undergo dynamic stresses and strains that initiate fatigue‐induced microcracks, which by their coalescence cause the failure of the materials, thus limiting their service life. To overcome this hurdle, one of the recent approaches relies on the development of smart self‐healing polymers that, analogously to biological systems, can use damage as a trigger to activate the self‐repair phenomenon, thus extending their service life. This work reviews the self‐healing approach in polymer‐based materials for structural applications. It focuses on three main aspects, which are also explained with schematics that illustrate the mechanisms involved. The first aspect describes the different strategies adopted for self‐healing polymeric structures, the self‐healing agents used, as well as the reactions responsible for repairing the damage. The second part is focused on the methods used to disperse the self‐healing agents and catalysts within the polymer systems. The third section details the different self‐healing mechanisms and the effectiveness of self‐healing approaches in terms of mechanical and dynamical‐mechanical behavior of materials. Challenges and future research outlook highlighting the importance of relaxation time and fatigue characterization and to understand the mechanisms and possible improvements are also presented.

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Section: Self-healing Applicationsmentioning

confidence: 99%

A review on self‐healing polymers and polymer composites for structural applications

et al. 2022

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“…In response to this problem, inspired by the self-healing ability of organisms after injury, scientists have prepared many self-healing functional materials, seeking to effectively eliminate the damage in the whole life cycle of polymers through autonomous damage activation or external trigger, thereby improving long-term durability. [1][2][3] In 2001, Scott White proposed the concept of self-healing microcapsules, 4 which brought more and more attention to self-healing technology. Compared with externally assisted self-healing materials represented by microcapsules, [5][6][7] internal selfhealing materials containing dynamic reversible bonds can repeatedly recover their chemical or physical bonds under certain external stimuli, so they have been widely studied in recent years.…”

Section: Introductionmentioning

confidence: 99%

Photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate based on coumarin chemistry

Zhou

Liu

Wang

2023

J of Applied Polymer Sci

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Photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate was synthesized by environmentally friendly RAFT‐mediated Pickering emulsion polymerization using amphiphilic block copolymer modified cellulose nanocrystal poly(acrylic acid)‐g‐CNC‐g‐poly (hexafluorobutyl acrylate‐co‐7‐(2‐methacryloyloxyethoxy)‐4‐methylcoumarin) PAA‐g‐CNC‐g‐P (HFBA‐co‐CMA) (MCNC) as a stabilizer, and the photo‐responsive coumarin groups were introduced to endow it with self‐healing function. This paper mainly studied the effect of MCNC dosage on emulsion polymerization and latex film properties. The latex particle size and its distribution decreased as the MCNC dosage increased from 0.4 wt% to 1.0 wt%, and then increased afterwards. The mechanical property and thermal stability of latex films could be significantly improved by introducing MCNC. And the surface scratches of latex films with MCNC exceeding 0.4 wt% could be completely repaired after 7 h UV irradiation. Furthermore, the photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate emulsion was applied to fabric finishing by dip‐rolling treatment. And the finished fabric had good hydrophobicity, oleophobicity and surface repair performance.

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“…In [ 24 ], the SH properties of special concrete bricks are presented, and in [ 25 ], the SH capacity and behavior of fiber-reinforced concrete materials are discussed under static and cyclic loading. There are also some articles that present an extensive overview of SH materials, i.e., [ 26 ], for self-healing concrete [ 27 , 28 , 29 ]. Furthermore, the reinforcement of concrete can have SH properties; the characterization of this type of material is presented in [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Self-Healing Mechanical Properties of Selected Roofing Felts

et al. 2023

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In this work, roof felts are considered. Special attention is paid to the mechanical properties and self-healing (SH) phenomena under elevated temperatures. The results of the heating and strength tests for the entire range of material work, from the first load to sample breaking, are shown with respect to the angle of reinforcement relative to the longitudinal axis of the sample and different ways of breaking the continuity of the material. The influence that the material thickness and modifiers used for the production of the base material have on the obtained results was also pointed out. The meaningful SH strength is reported—from 5% up to 20% of the strength of the undamaged material—which, in perspective, can provide comprehensive knowledge of the optimal use of roofing felts and its proper mathematical modeling.

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Build a bridge from polymeric structure design to engineering application of self-healing coatings: A review

Cited by 29 publications

References 207 publications

A review on self‐healing polymers and polymer composites for structural applications

A review on self‐healing polymers and polymer composites for structural applications

Photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate based on coumarin chemistry

Self-Healing Mechanical Properties of Selected Roofing Felts

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