Highly flexible transparent self-healing composite based on electrospun core–shell nanofibers produced by coaxial electrospinning for anti-corrosion and electrical insulation

An, Seongpil; Liou, Minho; Song, Kyo Yong; Jo, Hong Seok; Lee, Min Wook; Al‐Deyab, Salem S.; Yarin, Alexander L.; Yoon, Sam S.

doi:10.1039/c5nr04551g

Cited by 98 publications

(64 citation statements)

References 44 publications

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“…This work was focused more on C/S fibers production without further investigation on healing performance and recovering efficiency. Recently, Lee and coworkers carried out the electrospinning of self‐healing composites and coatings by encapsulating DMS in PAN . Neisiany et al .…”

Section: C/s Nanofibersmentioning

confidence: 99%

Recent advances in core/shell bicomponent fibers and nanofibers: A review

Naeimirad

Ali

Kotek

et al. 2018

J of Applied Polymer Sci

146

103

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There has been a steady progress in developing synthetic fibers in the past few years. Bicomponent fibers and nanofibers in a core/shell (C/S) configuration, including two dissimilar materials have presented unusual potential for use in many novel applications. These fibers can be produced using a variety of materials via different techniques i.e., coaxial melt spinning and electrospinning. In this review, we discuss the recent advances in C/S fibers and nanofibers' production. The first part has been assigned to the bicomponent fibers manufacturing technology, while production and applications of C/S nanofibers have been described in the second part.

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Section: C/s Nanofibersmentioning

confidence: 99%

Recent advances in core/shell bicomponent fibers and nanofibers: A review

Naeimirad

Ali

Kotek

et al. 2018

J of Applied Polymer Sci

146

103

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“…The three-electrode system consisted of the coating on steel for the working electrode, a Pt counter electrode, and a Ag/AgCl reference electrode. Each specimen was exposed to a freshly prepared aqueous salt solution (5% NaCl, 30…”

Section: Electrochemical Analysis Of Coatingmentioning

confidence: 99%

“…Without confirmation that the healing agents successfully reacted, the coatings may have only unreacted (liquid) healing agents in the damage region, which acts only as a temporary physical barrier between the metal substrate and the environment. Electrospinning has also been used to develop flexible transparent self-healing coatings for optical devices [30]. In addition to coatings, electrospun fibers have also been used to add healing functionality into composites [11,[31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Characterization of core-shell microstructure and self-healing performance of electrospun fiber coatings

Doan

Leslie

Kim

et al. 2016

Polymer

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Electrospun fibers are a promising method for encapsulation of reactive agents in selfhealing coatings. Healing is initiated by mechanical damage to the coating causing the fibers to rupture and release their core materials into the damage region. Prior work has demonstrated autonomous healing in coatings containing electrospun fibers, but full characterization of the electrospun fiber microstructure and healing performance of the coating is lacking. In this study, we utilize electrospun fibers containing liquid healing agents to achieve a crosslinking reaction of poly(dimethylsiloxane) (PDMS) to a crosslinking agent poly(diethoxysiloxane) (PDES), initiated by the catalyst dibutyltindilaurate (DBTL), to fill a damaged region and reseal the metal substrate. Fiber morphology is characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and confocal fluorescence microscopy (CFM). Successful delivery of healing agents to the damage region and subsequent crosslinking reaction is observed using SEM and chemically using infrared spectroscopy. The performance of the healed coating is evaluated electrochemically using linear polarization, where the coatings were subjected to a corrosive environment. The self-healing electrospun coating exhibits lower corrosion current than in control cases, resulting in an 88% corrosion inhibition efficiency.

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“…Lee et al reported that a blend solution of Poly(vinylidene fluoride) (PVDF) and polyethylene oxide (PEO) had a good effect on encapsulating the reactive DMS and its healing agents [ 24 , 25 ]. Unfortunately, much room for improvement remains for traditional working processes, such as layered electrospinning and double coaxial electrospinning [ 26 ], in terms of facile preparation, accurate loading of the healing and curing agents, and utilization efficiency. Most recently, Yildiz et al used three-fluid electrospinning to prepare self-healing materials.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Multiple-Chamber Nanostructure and Its Potential Self-Healing Applications

Liu

et al. 2020

Polymers

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To address the life span of materials in the process of daily use, new types of structural nanofibers, fabricated by multifluid electrospinning to encapsulate both epoxy resin and amine curing agent, were embedded into an epoxy matrix to provide it with self-healing ability. The nanofibers, which have a polyacrylonitrile sheath holding two separate cores, had an average diameter of 300 ± 140 nm with a uniform size distribution. The prepared fibers had a linear morphology with a clear three-chamber inner structure, as verified by scanning electron microscope and transmission electron microscope images. The two core sections were composed of epoxy and amine curing agents, respectively, as demonstrated under the synergistic characterization of Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), and differential scanning calorimetry. The TGA results disclosed that the core-shell nanofibers contained 9.06% triethylenetetramine and 20.71% cured epoxy. In the electrochemical corrosion experiment, self-healing coatings exhibited an effective anti-corrosion effect, unlike the composite without nanofibers. This complex nanostructure was proven to be an effective nanoreactor, which is useful to encapsulate reactive fluids. This engineering process by multiple-fluid electrospinning is the first time to prove that this special multiple-chamber structure has great potential in the field of self-healing.

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Highly flexible transparent self-healing composite based on electrospun core–shell nanofibers produced by coaxial electrospinning for anti-corrosion and electrical insulation

Cited by 98 publications

References 44 publications

Recent advances in core/shell bicomponent fibers and nanofibers: A review

Recent advances in core/shell bicomponent fibers and nanofibers: A review

Characterization of core-shell microstructure and self-healing performance of electrospun fiber coatings

Electrospun Multiple-Chamber Nanostructure and Its Potential Self-Healing Applications

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