Room temperature Self-healable and extremely stretchable elastomer with improved mechanical Properties: Exploring a simplistic Metal-Ligand interaction

Das, Mithun; Bhattacharya, Asit Baran; Rahman, P Arshad; Naskar, Kinsuk

doi:10.1016/j.eurpolymj.2022.111341

Cited by 16 publications

(7 citation statements)

References 46 publications

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“…Naskar et al 70 prepared self-healable and extremely stretchable ionic elastomer based on the dynamic metal-ligand coordination between 1-(3-aminopropyl)imidazole (API ligand) and Zn 2+ metal ion moieties incorporated onto the XNBR rubber backbone, with zinc chloride (ZnCl 2 ). With 3 phr of Zn 2+ metal ion, an excellent healing performance of 91.2% was achieved at room temperature after 24 h, with the tensile strength of 5.7 MPa.…”

Section: Resultsmentioning

confidence: 99%

Unlocking the potential of self-healing and recyclable ionic elastomers for soft robotics applications

Utrera-Barrios,

Steenackers,

Terryn

et al. 2024

Mater. Horiz.

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Section: Resultsmentioning

confidence: 99%

Unlocking the potential of self-healing and recyclable ionic elastomers for soft robotics applications

Utrera-Barrios,

Steenackers,

Terryn

et al. 2024

Mater. Horiz.

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“…Though at 20 phr filler loading the droplet size increases but due to the presence of reinforcing CCB filler the mechanical properties are higher for sample, C20. [ 45–48 ]…”

Section: Resultsmentioning

confidence: 99%

“…Though at 20 phr filler loading the droplet size increases but due to the presence of reinforcing CCB filler the mechanical properties are higher for sample, C20. [45][46][47][48] Finally, from the morphology study, it can be concluded that uniform droplet type morphology and smaller size can be achieved at the 10 phr level, which is optimized with the reference of the other mechanical and rheological properties. [49] 3.…”

Section: Fesem Micrographsmentioning

confidence: 99%

An investigation on mechanical, electrical, and rheological characteristics of ultra‐high molecular weight (UHMW)‐EPDM/PP blends‐based conductive thermoplastic vulcanizates (CTPVs)

Bhattacharya

Parathodika

Ganguly

et al. 2022

Polymer Engineering & Sci

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A new generation conductive thermoplastic vulcanizates (CTPVs) have been developed and characterized in detail, which is based on ultra-high molecular weight (UHMW)-EPDM rubber combined with conductive carbon black (CCB) filler. The influence of incorporation of CCB filler in the CTPV matrix on various relevant properties has been studied thoroughly. Physicomechanical properties indicate a significant improvement in the tensile strength, modulus, crosslink density, and tear strength together with quite good flexibility of the CTPVs. Rheological properties depict excellent processability and material strength (storage-modulus and complex-modulus), and stress relaxation shows a higher relaxation time of the CTPVs over the pristine-TPV. Morphology study (AFM, FESEM, and TEM) reveals very well dispersion of the CCB-filler and droplet type dispersed morphology has been achieved. The study of the electrical properties demonstrates that fair AC conductivity can be achieved for high filler loading. AC impedance analysis also proves the improvement for CTPVs over the pristine TPV. It is well described that due to the incorporation of the CCB-filler, all the properties are improved, and from some of the results amount of CCB-filler can also be optimized.UHMW-EPDM/PP-based conductive TPVs (CTPVs) can be potentially used as a sensitive stretchable conductor for various applications.

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“…A variety of dynamic metal-ligand interactions have been utilized to develop self-healing SR-based composites, but the thermal stability of the prepared self-healing materials is insufficient for use as high temperature thermal protective coatings due to their low T d (i.e., around 300 °C). Many metal-ligand bonds would dissociate at a relatively low temperatures (generally below 90 °C) [25][26][27] and the materials with metal-ligand bonds cannot remain the integrity of the crosslinked network. [28,29] Bao et al [30,31] investigated the coordination mode of Fe (III) with 2,6pyridinedicarboxamide, and their work provided a theoretical basis for the design of self-healing PDMS elastomers.…”

Section: Doi: 101002/marc202300191mentioning

confidence: 99%

Fabrication of Highly Thermally Resistant and Self‐Healing Polysiloxane Elastomers by Constructing Covalent and Reversible Networks

Cai,

Wang,

Long

et al. 2023

Macromol. Rapid Commun.

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The fabrication of self‐healing elastomers with high thermal stability for use in extreme thermal conditions such as aerospace remains a major challenge. A strategy for preparing self‐healing elastomers with stable covalent bonds and dynamic metal–ligand coordination interactions as crosslinking sites in polydimethylsiloxane (PDMS) is proposed. The added Fe (III) not only serves as the dynamic crosslinking point at room temperature which is crucial for self‐healing performance, but also plays a role as free radical scavenging agent at high temperatures. The results show that the PDMS elastomers possessed an initial thermal degradation temperature over 380 °C and a room temperature self‐healing efficiency as high as 65.7%. Moreover, the char residue at 800 °C of PDMS elastomer reaches 7.19% in nitrogen atmosphere, and up to 14.02% in air atmosphere by doping a small amount (i.e., 0.3 wt%) of Fe (III), which is remarkable for the self‐healing elastomers that contain weak and dynamic bonds with relatively poor thermal stability. This study provides an insight into designing self‐healing PDMS‐based materials that can be targeted for use as high‐temperature thermal protection coatings.

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Room temperature Self-healable and extremely stretchable elastomer with improved mechanical Properties: Exploring a simplistic Metal-Ligand interaction

Cited by 16 publications

References 46 publications

Unlocking the potential of self-healing and recyclable ionic elastomers for soft robotics applications

Unlocking the potential of self-healing and recyclable ionic elastomers for soft robotics applications

An investigation on mechanical, electrical, and rheological characteristics of ultra‐high molecular weight (UHMW)‐EPDM/PP blends‐based conductive thermoplastic vulcanizates (CTPVs)

Fabrication of Highly Thermally Resistant and Self‐Healing Polysiloxane Elastomers by Constructing Covalent and Reversible Networks

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