Self-healable and recyclable materials and electronics can improve the reliability and repairability and can reduce environmental pollution; therefore, they promise very broad applications. In this study, we investigated the self-healing performance of dynamic covalent thermoset polyimine and its nanocomposites based on the dynamic covalent chemistry. Heat press was applied to two laminating films of polyimine and its nanocomposites to induce self-healing. The effects of heat press time, temperature, and load on the interfacial shear strength of the rehealed films were investigated. The results showed that increasing the heat press time, temperature, and load can significantly improve the interfacial shear strength and thus the self-healing effect. For polyimine nanocomposites, increasing the heat press time, temperature, and load led to the improved electrical conductivity of the rehealed films.
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October 2019
Research-Article
Investigating the Self-Healing of Dynamic Covalent Thermoset Polyimine and Its Nanocomposites
Chuanqian Shi,
Chuanqian Shi
School of Aerospace Engineering and Applied Mechanics,
Shanghai 200092,
Tongji University
,Shanghai 200092,
China
;Department of Mechanical Engineering,
Boulder, CO 80309
e-mail: shichuanqian@tongji.edu.cn
University of Colorado Boulder
,Boulder, CO 80309
e-mail: shichuanqian@tongji.edu.cn
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Zhanan Zou,
Zhanan Zou
Department of Mechanical Engineering,
Boulder, CO 80309
e-mail: zhanan.zou@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: zhanan.zou@colorado.edu
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Zepeng Lei,
Zepeng Lei
Department of Chemistry,
Boulder, CO 80309
e-mail: Zepeng.lei@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: Zepeng.lei@colorado.edu
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Xingli Wu,
Xingli Wu
School of Mechanical Engineering,
Liaoning 110870,
e-mail: 406825697@qq.com
Shenyang University of Technology
,Liaoning 110870,
China
e-mail: 406825697@qq.com
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Zhengwei Liu,
Zhengwei Liu
Department of Mechanical Engineering,
Shanghai 201600,
e-mail: zhwei_liu@foxmail.com
Donghua University
,Shanghai 201600,
China
e-mail: zhwei_liu@foxmail.com
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Haiqing Lu,
Haiqing Lu
School of Mechanical-Electronic and Vehicle Engineering,
Shandong 261061,
e-mail: luhaiqing668@163.com
Weifang University
,Shandong 261061,
China
e-mail: luhaiqing668@163.com
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Wei Zhang,
Wei Zhang
Department of Chemistry,
Boulder, CO 80309
e-mail: wei.zhang@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: wei.zhang@colorado.edu
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Jianliang Xiao
Jianliang Xiao
2
Department of Mechanical Engineering,
Boulder, CO 80309
e-mail: Jianliang.Xiao@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: Jianliang.Xiao@colorado.edu
2Corresponding author.
Search for other works by this author on:
Chuanqian Shi
School of Aerospace Engineering and Applied Mechanics,
Shanghai 200092,
Tongji University
,Shanghai 200092,
China
;Department of Mechanical Engineering,
Boulder, CO 80309
e-mail: shichuanqian@tongji.edu.cn
University of Colorado Boulder
,Boulder, CO 80309
e-mail: shichuanqian@tongji.edu.cn
Zhanan Zou
Department of Mechanical Engineering,
Boulder, CO 80309
e-mail: zhanan.zou@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: zhanan.zou@colorado.edu
Zepeng Lei
Department of Chemistry,
Boulder, CO 80309
e-mail: Zepeng.lei@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: Zepeng.lei@colorado.edu
Xingli Wu
School of Mechanical Engineering,
Liaoning 110870,
e-mail: 406825697@qq.com
Shenyang University of Technology
,Liaoning 110870,
China
e-mail: 406825697@qq.com
Zhengwei Liu
Department of Mechanical Engineering,
Shanghai 201600,
e-mail: zhwei_liu@foxmail.com
Donghua University
,Shanghai 201600,
China
e-mail: zhwei_liu@foxmail.com
Haiqing Lu
School of Mechanical-Electronic and Vehicle Engineering,
Shandong 261061,
e-mail: luhaiqing668@163.com
Weifang University
,Shandong 261061,
China
e-mail: luhaiqing668@163.com
Wei Zhang
Department of Chemistry,
Boulder, CO 80309
e-mail: wei.zhang@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: wei.zhang@colorado.edu
Jianliang Xiao
Department of Mechanical Engineering,
Boulder, CO 80309
e-mail: Jianliang.Xiao@colorado.edu
University of Colorado Boulder
,Boulder, CO 80309
e-mail: Jianliang.Xiao@colorado.edu
1
These authors contributed equally to this work.
2Corresponding author.
Contributed by the Applied Mechanics Division of ASME for publication in the Journal of Applied Mechanics. Manuscript received May 20, 2019; final manuscript received June 14, 2019; published online July 17, 2019. Assoc. Editor: Yonggang Huang.
J. Appl. Mech. Oct 2019, 86(10): 101005 (6 pages)
Published Online: July 17, 2019
Article history
Received:
May 20, 2019
Revision Received:
June 14, 2019
Accepted:
June 15, 2019
Citation
Shi, C., Zou, Z., Lei, Z., Wu, X., Liu, Z., Lu, H., Zhang, W., and Xiao, J. (July 17, 2019). "Investigating the Self-Healing of Dynamic Covalent Thermoset Polyimine and Its Nanocomposites." ASME. J. Appl. Mech. October 2019; 86(10): 101005. https://doi.org/10.1115/1.4044088
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