Tough and Healable Elastomers via Dynamic Integrated Moiety Comprising Covalent and Noncovalent Interactions

Xiaoyu Gao; Wenru Fan; Wei Zhu; Gao Jiuwei; Pengfang Zhang; Chen Wang; Xuewen Wang; Hesheng Xia; Zhenhua Wang; Wei Huang

doi:10.1021/acs.chemmater.1c03813

Tough and Healable Elastomers via Dynamic Integrated Moiety Comprising Covalent and Noncovalent Interactions

Xiaoyu Gao, Wenru Fan, Wei Zhu, Gao Jiuwei, Pengfang Zhang, Chen Wang, Xuewen Wang, Hesheng Xia, Zhenhua Wang, Wei Huang

Institute of Flexible Electronics

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Elastomers that combined excellent mechanical performance and healability are essential to the advancement of stretchable electronics. However, the strength and toughness of healable elastomers tend to be mutually exclusive. Herein, a new strategy of the dynamic integrated moiety is developed to construct covalent and noncovalent cross-linked polyurethane (CNPU) elastomers. The covalent and noncovalent interactions synergistically enhance the overall mechanical properties of polyurethane elastomers such as tensile strength (48.8 MPa), toughness (282.9 MJ·m-3), stretchability (1740%), and healing efficiency (116%). Finally, elastic conductive wires are fabricated with high load capacity, stable electrical conductivity under static/dynamic stretching, and robust healability to demonstrate the potential use of CNPU elastomers in stretchable electronics.

Original language	English
Pages (from-to)	2981-2988
Number of pages	8
Journal	Chemistry of Materials
Volume	34
Issue number	7
DOIs	https://doi.org/10.1021/acs.chemmater.1c03813
State	Published - 12 Apr 2022

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title = "Tough and Healable Elastomers via Dynamic Integrated Moiety Comprising Covalent and Noncovalent Interactions",

abstract = "Elastomers that combined excellent mechanical performance and healability are essential to the advancement of stretchable electronics. However, the strength and toughness of healable elastomers tend to be mutually exclusive. Herein, a new strategy of the dynamic integrated moiety is developed to construct covalent and noncovalent cross-linked polyurethane (CNPU) elastomers. The covalent and noncovalent interactions synergistically enhance the overall mechanical properties of polyurethane elastomers such as tensile strength (48.8 MPa), toughness (282.9 MJ·m-3), stretchability (1740%), and healing efficiency (116%). Finally, elastic conductive wires are fabricated with high load capacity, stable electrical conductivity under static/dynamic stretching, and robust healability to demonstrate the potential use of CNPU elastomers in stretchable electronics.",

author = "Xiaoyu Gao and Wenru Fan and Wei Zhu and Gao Jiuwei and Pengfang Zhang and Chen Wang and Xuewen Wang and Hesheng Xia and Zhenhua Wang and Wei Huang",

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doi = "10.1021/acs.chemmater.1c03813",

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T1 - Tough and Healable Elastomers via Dynamic Integrated Moiety Comprising Covalent and Noncovalent Interactions

AU - Gao, Xiaoyu

AU - Fan, Wenru

AU - Zhu, Wei

AU - Jiuwei, Gao

AU - Zhang, Pengfang

AU - Wang, Chen

AU - Wang, Xuewen

AU - Xia, Hesheng

AU - Wang, Zhenhua

AU - Huang, Wei

PY - 2022/4/12

Y1 - 2022/4/12

N2 - Elastomers that combined excellent mechanical performance and healability are essential to the advancement of stretchable electronics. However, the strength and toughness of healable elastomers tend to be mutually exclusive. Herein, a new strategy of the dynamic integrated moiety is developed to construct covalent and noncovalent cross-linked polyurethane (CNPU) elastomers. The covalent and noncovalent interactions synergistically enhance the overall mechanical properties of polyurethane elastomers such as tensile strength (48.8 MPa), toughness (282.9 MJ·m-3), stretchability (1740%), and healing efficiency (116%). Finally, elastic conductive wires are fabricated with high load capacity, stable electrical conductivity under static/dynamic stretching, and robust healability to demonstrate the potential use of CNPU elastomers in stretchable electronics.

AB - Elastomers that combined excellent mechanical performance and healability are essential to the advancement of stretchable electronics. However, the strength and toughness of healable elastomers tend to be mutually exclusive. Herein, a new strategy of the dynamic integrated moiety is developed to construct covalent and noncovalent cross-linked polyurethane (CNPU) elastomers. The covalent and noncovalent interactions synergistically enhance the overall mechanical properties of polyurethane elastomers such as tensile strength (48.8 MPa), toughness (282.9 MJ·m-3), stretchability (1740%), and healing efficiency (116%). Finally, elastic conductive wires are fabricated with high load capacity, stable electrical conductivity under static/dynamic stretching, and robust healability to demonstrate the potential use of CNPU elastomers in stretchable electronics.

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U2 - 10.1021/acs.chemmater.1c03813

DO - 10.1021/acs.chemmater.1c03813

M3 - 文章

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SN - 0897-4756

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SP - 2981

EP - 2988

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 7

ER -

Tough and Healable Elastomers via Dynamic Integrated Moiety Comprising Covalent and Noncovalent Interactions

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