Issue 25, 2019, Issue in Progress
From the journal:

RSC Advances

Infrared induced repeatable self-healing and removability of mechanically enhanced graphene–epoxy flexible materials†

Yakun Guo, ORCID logo a   Dongli Zou,b   Wanqiu Zhu,c   Xiaojiao Yang,a   Pengxiang Zhao,d   Changan Chen*a  and  Maobing Shuai*b  

* Corresponding authors

a Science and Technology on Surface Physics and Chemistry Laboratory, No. 9, Huafengxincun, Jiangyou City, Sichuan Province, P. R. China
E-mail: chenchangan@caep.cn

b Institute of Materials, China Academy of Engineering Physics, Mianyang City, Sichuan Province, P. R. China
E-mail: shuaimaobing@caep.cn

c Department of Materials, Southwest University of Science and Technology, Mianyang 621010, P. R. China

d Chengdu Science and Technology Development Center, Chengdu, P. R. China

Abstract

A repeatable self-healing epoxy composite mechanically enhanced by graphene nanosheets (GNS) was prepared from an epoxy monomer with Diels–Alder (DA) bonds, octanediol glycidyl ether (OGE) and polyether amine (D230). The GNS/epoxy composites, with a maximum tensile modulus of 14.52 ± 0.45 MPa and elongation at break more than 100%, could be healed several times under Infrared (IR) light with the healing efficiency as high as 90% through the molecule chain mobility and the rebonding of reversible DA bonds between furan and maleimide. Also, they displayed excellent recyclable ability by transforming into a soluble polymer, which offers a wide range of possibilities to produce epoxy flexible materials with healing and removable abilities.

Graphical abstract: Infrared induced repeatable self-healing and removability of mechanically enhanced graphene–epoxy flexible materials

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Article information

DOI
https://doi.org/10.1039/C9RA00261H
Article type
Paper
Submitted
11 Jan 2019
Accepted
24 Mar 2019
First published
07 May 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 14024-14032

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Infrared induced repeatable self-healing and removability of mechanically enhanced graphene–epoxy flexible materials

Y. Guo, D. Zou, W. Zhu, X. Yang, P. Zhao, C. Chen and M. Shuai, RSC Adv., 2019, 9, 14024 DOI: 10.1039/C9RA00261H

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