Recyclable and self-healing rubber composites based on thermorevesible dynamic covalent bonding

Jia, Zhixin; Zhu, Shuli; Chen, Yongjun; Zhang, Wenqiang; Zhong, Bangchao; Jia, Demin

doi:10.1016/j.compositesa.2019.105709

Cited by 53 publications

(36 citation statements)

References 39 publications

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“…The developed vitrimer showed excellent self-healing abilities. Jia et al (2020) using Diels-Alder reaction developed thermoreversible dynamic covalent bonding based self-healing rubber, this rubber has shown good mechanical properties and self-healing behaviour.…”

Section: Dynamic Covalent Bondingmentioning

confidence: 99%

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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: Dynamic Covalent Bondingmentioning

confidence: 99%

“…Another silicon elastomer having adjustable mechanical and self-healing properties was developed by Jia et al (2020). They prepared the elastomer by crosslinking 4,4′-methylenebis-(cyclohexyl isocyanate) and isophthalaldehyde sequentially with aminopropyl terminated polydimethylsiloxane.…”

Section: Elastomersmentioning

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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“…The appearance of cracks will severely destroy the structural integrity and mechanical properties of the materials, as the cracks usually act as stress concentration to trigger the expansion of defects and eventually break the materials thoroughly 1,2 . In order to solve this problem of breakage in the application of materials, and for lengthening the useful life of materials, such as coating, tire, and encapsulation, 2‐4 self‐healing feature, an efficient and advanced property, has attracted much attention over the academic community in recent decades 5‐7 . As one of the elastomers, vulcanized rubbers are thermoset because of their internal cross‐linked networks, which means that vulcanized rubbers cannot be recycled and reprocessed.…”

Section: Introductionmentioning

confidence: 99%

Multiple cross‐linked networks enhanced ENR‐based composite with excellent self‐healing properties

Peng

Huang

Gong

et al. 2021

Polymers for Advanced Techs

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Self‐healing property is an excellent feature that can improve the reliability and durability of the materials. In this study, carboxylic multi‐walled carbon nanotubes (S‐CNTs) and 2,2′‐dithiodibenzoic acid (DTSA) were introduced into epoxidized natural rubber (ENR) to prepare a self‐healing rubber. S‐CNTs and DTSA could react with epoxy groups of ENR to effectively cross‐link ENR, in which the cross‐linked network consisted of reversible disulfide bonds, β‐hydroxyl ester bonds, and hydrogen bonds. The reconfigurable cross‐linked network endowed the ENR/S‐CNTs/DTSA composites with great self‐healing behavior with efficiency up to 99.7%. The multiple cross‐linked networks also enhanced the mechanical properties of the composite, whose tensile strength reached more than 400% of the neat ENR. Additionally, optical microscope and scanning electron microscopy disclosed the evolution of the damaged area during the self‐healing process, and the crack could be completely repaired after the healing process. This work provides an effective and concise method to prepare self‐healing ENR‐based elastomer, and it may expand the research scope of self‐healing materials.

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“…The demand for recyclable materials is permanently increasing, together with the growing interest to develop new materials from renewable resources, with an economical potential and at least analogous performances to those obtained from fossil raw materials. Several bio-based epoxidized monomers have been used to obtain vitrimers: isosorbide, [ 12 ] eugenol [ 13 , 14 ] or epoxidized natural rubber (ENR). [ 7 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Presence of Disulphide Bonds in Aromatic or Aliphatic Dicarboxylic Acid Hardeners Used to Produce Reprocessable Epoxidized Thermosets

Mauro

Mija

2021

Polymers

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The design of polymers from renewable resources with recycling potential comes from economic and environmental problems. This work focused on the impact of disulphide bonds in the dicarboxylic acids reactions with three epoxidized vegetable oils (EVOs). For the first time, the comparison between aromatic vs. aliphatic dicarboxylic acids, containing or not S–S bonds with EVOs was discussed and evaluated by dynamic scanning calorimetry. The obtained thermosets showed reprocessability, by the dual dynamic exchange mechanism. The virgin and reprocessed materials were characterized and the thermomechanical properties were compared. The thermosets derived from EVOs with high epoxy content combined with aromatic diacids containing disulphide bridges showed high glass transition values (~111 °C), high crosslink densities and good solvent stability.

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Recyclable and self-healing rubber composites based on thermorevesible dynamic covalent bonding

Cited by 53 publications

References 39 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

Multiple cross‐linked networks enhanced ENR‐based composite with excellent self‐healing properties

Influence of the Presence of Disulphide Bonds in Aromatic or Aliphatic Dicarboxylic Acid Hardeners Used to Produce Reprocessable Epoxidized Thermosets

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