Recyclability and Self-healing of Dynamic Cross-linked Polyimide with Mechanical/Electrical Damage
Recyclability and Self-healing of Dynamic Cross-linked Polyimide with Mechanical/Electrical Damage
Recyclability and self-healing are two most critical factors in developing sustainable polymers to deal with environmental pollution and resource waste. In this work, a dynamic cross-linked polyimide insulation film with full closed-loop recyclability is successfully prepared, which also possesses good self-healing ability after being mechanical/electrical damaged depending on the Schiff base dynamic covalent bonds. The recycled and self-healed polyimide film still maintain its good tensile strength (σt) >60 MPa with Young's modulus (E) >4 GPa, high thermal stability with glass transition temperature (Tg) >220 °C, and outstanding insulation property with breakdown strength (E0) >358 kVmm−1, making it a very promising low energy consumption and high temperature resistant insulation material. The strategy of using Schiff base dynamic covalent bonds for reversible repairing the structure of high Tg polyimides promotes the wider application of such sustainable and recyclable material in the field of electrical power and micro -electronics.
Chen, George
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Wan, Baoquan
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Zheng, Ming-Sheng
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Yang, Xing
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Dong, Xiaodi
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Li, Yuchao
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Mai, Yiu-Wing
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Zha, Jun-Wei
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12 May 2022
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wan, Baoquan
4558315b-c7e7-4d62-9bc9-7750c8c06ddb
Zheng, Ming-Sheng
bfb5da29-4c6b-41f1-bfd8-8f87ddd3079e
Yang, Xing
2d347af5-0030-49cb-b74a-8dfbe759c2b4
Dong, Xiaodi
419376f0-9422-4ab1-ba96-f749fdc0949d
Li, Yuchao
0c96290f-96ac-47ef-bd8a-6e31d33e2b33
Mai, Yiu-Wing
2f50825a-d41e-4a7e-8ab4-130cebd46c11
Zha, Jun-Wei
659fb621-f623-4cd3-bc1b-9c00da5e1e4a
Chen, George, Wan, Baoquan, Zheng, Ming-Sheng, Yang, Xing, Dong, Xiaodi, Li, Yuchao, Mai, Yiu-Wing and Zha, Jun-Wei
(2022)
Recyclability and Self-healing of Dynamic Cross-linked Polyimide with Mechanical/Electrical Damage.
Energy and Environmental Materials, [e12427].
(doi:10.1002/eem2.12427).
Abstract
Recyclability and self-healing are two most critical factors in developing sustainable polymers to deal with environmental pollution and resource waste. In this work, a dynamic cross-linked polyimide insulation film with full closed-loop recyclability is successfully prepared, which also possesses good self-healing ability after being mechanical/electrical damaged depending on the Schiff base dynamic covalent bonds. The recycled and self-healed polyimide film still maintain its good tensile strength (σt) >60 MPa with Young's modulus (E) >4 GPa, high thermal stability with glass transition temperature (Tg) >220 °C, and outstanding insulation property with breakdown strength (E0) >358 kVmm−1, making it a very promising low energy consumption and high temperature resistant insulation material. The strategy of using Schiff base dynamic covalent bonds for reversible repairing the structure of high Tg polyimides promotes the wider application of such sustainable and recyclable material in the field of electrical power and micro -electronics.
Text
Energy Environ Materials - 2022 - Wan - Recyclability and Self‐Healing of Dynamic Cross‐Linked Polyimide with Mechanical
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Accepted/In Press date: 7 May 2022
Published date: 12 May 2022
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Funding Information:
This work was financially supported by the National Natural Science Foundation of China (No. 51977114, 52177020), Fundamental Research Funds for the Central Universities (No. FRF‐NP‐19‐008 and FRF‐TP‐20‐02B2), and Scientific and Technological Innovation Foundation of Foshan (BK21BE006).
Publisher Copyright:
© 2022 Zhengzhou University.
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Local EPrints ID: 472997
URI: http://eprints.soton.ac.uk/id/eprint/472997
ISSN: 2575-0348
PURE UUID: 448c8c62-1d5b-4e69-b2e4-f48b0ad13dd7
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Date deposited: 06 Jan 2023 17:55
Last modified: 16 Mar 2024 23:30
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Contributors
Author:
George Chen
Author:
Baoquan Wan
Author:
Ming-Sheng Zheng
Author:
Xing Yang
Author:
Xiaodi Dong
Author:
Yuchao Li
Author:
Yiu-Wing Mai
Author:
Jun-Wei Zha
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