Preparation and research of intrinsic self-healing elastomers based on hydrogen and ionic bond

Wang, Xiaoping; Liang, Dong; Cheng, Bingkun

doi:10.1016/j.compscitech.2020.108127

Cited by 73 publications

(37 citation statements)

References 31 publications

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“…Reversible crosslinks are found in dynamic covalent bonding (Zhang et al 2018), hydrogen bonding (Zhao et al 2020), ionic bonding (Wang et al 2020b), supramolecular (Mohamadhoseini and Mohamadnia 2020), and hydrophobic interactions (Wang et al 2019b). The degree of selfhealing ability depends upon the number of linkages and strength of moieties.…”

Section: Mechanism Of Self-healing In Reversible Crosslinksmentioning

confidence: 99%

Nano-structured dynamic Schiff base cues as robust self-healing polymers for biomedical and tissue engineering applications: a review

et al. 2021

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Polymer materials are vulnerable to damages, failures, and degradations, making them economically unreliable. Self-healing polymers, on the other hand, are multifunctional materials with superior properties of autonomic recovery from physical damages. These materials are suitable for biomedical and tissue engineering in terms of cost and durability. Schiff base linkages-based polymer materials are one of the robust techniques owing to their simple self-healing mechanism. These are dynamic reversible covalent bonds, easy to fabricate at mild conditions, and can self-reintegrate after network disruption at physiological conditions making them distinguished. Here we review self-healing polymer materials based on Schiff base bonds. We discuss the Schiff base bond formation between polymeric networks, which explains the self-healing phenomenon. These bonds have induced 100% recovery in optimal cases.

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Section: Mechanism Of Self-healing In Reversible Crosslinksmentioning

confidence: 99%

Nano-structured dynamic Schiff base cues as robust self-healing polymers for biomedical and tissue engineering applications: a review

et al. 2021

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“…Recent trends of polymer have been for it to regain its properties, especially the protective properties; this helps increase the shelf life of the material. Polymer with self-healing properties can be used for this purpose [ 99 , 100 , 101 , 102 , 103 , 104 , 105 ]. Such materials are getting much attention recently in the polymer and coating industry.…”

Section: Key Factors Of Pu/zno Composite For Protecting Applicatiomentioning

confidence: 99%

“…In intrinsic coating, the coating possesses a repairing capacity through its internal chemical bond. Though both techniques are applicable for polymers, the intrinsic healing has more of an advantage, as this technique allows multiple time repairing [ 103 , 104 , 105 ]. Moreover, this technique allows good compatibility of bulk polymers, in which the interactions of functional groups triggered by heat, light and pH.…”

Section: Key Factors Of Pu/zno Composite For Protecting Applicatiomentioning

confidence: 99%

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Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

Rahman

2020

Polymers

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A polyurethane (PU) is a multifunctional polymer prepared by using more than two types of monomers. The unique properties of PU come from monomers, thus broadening the applicability of PU in many different sectors. The properties can be further improved by using many nanoparticles. Different metal oxides as nanoparticles are also widely used in PU materials. ZnO is a widely used inorganic metal oxide nanoparticle for improving polymer properties. In this review article, the techniques to prepare a PU/ZnO composite are reviewed; the key protective properties, such as adhesive strength and self-healing, and applications of PU/ZnO composites are also highlighted. This review also highlights the PU/ZnO composite’s current challenges and future prospects, which will help to broaden the composite practical application by preparing environmentally friendly composites.

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“…From a mechanical and theoretical point of view, the complete healing of an interface can only be realized if the new interface has exactly the same features of the bulk material. This means that the interfaces created by the damage event virtually vanish when the healing mechanism takes place, thanks to the development of chain entanglements and/or physico-chemical crosslinks as strong as the polymer matrix [ 12 ]. One of the methods reported to add the healing agent into the composite is by dispersing it as a powder in the epoxy resin [ 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Thermal Mending of Electroactive Carbon/Epoxy Laminates Using a Porous Poly(ε-caprolactone) Electrospun Mesh

et al. 2021

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For the first time, a porous mesh of poly(ε-caprolactone) (PCL) was electrospun directly onto carbon fiber (CF) plies and used to develop novel structural epoxy (EP) composites with electro-activated self-healing properties. Three samples, i.e., the neat EP/CF composite and two laminates containing a limited amount of PCL (i.e., 5 wt.% and 10 wt.%), were prepared and characterized from a microstructural and thermo-mechanical point of view. The introduction of the PCL mesh led to a reduction in the flexural stress at break (by 17%), of the interlaminar shear strength (by 15%), and of the interlaminar shear strength (by 39%). The interlaminar fracture toughness of the prepared laminates was evaluated under mode I, and broken samples were thermally mended at 80 °C (i.e., above the melting temperature of PCL) by resistive heating generated by a current flow within the samples through Joule’s effect. It was demonstrated that, thanks to the presence of the electrospun PCL mesh, the laminate with a PCL of 10 wt.% showed healing efficiency values up to 31%.

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Preparation and research of intrinsic self-healing elastomers based on hydrogen and ionic bond

Cited by 73 publications

References 31 publications

Nano-structured dynamic Schiff base cues as robust self-healing polymers for biomedical and tissue engineering applications: a review

Nano-structured dynamic Schiff base cues as robust self-healing polymers for biomedical and tissue engineering applications: a review

Polyurethane/Zinc Oxide (PU/ZnO) Composite—Synthesis, Protective Property and Application

Thermal Mending of Electroactive Carbon/Epoxy Laminates Using a Porous Poly(ε-caprolactone) Electrospun Mesh

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