A dual functional epoxy material with autonomous damage indication and self-healingElectronic supplementary information (ESI) available: Experimental details, UV-vis spectra of DCF, 1H NMR spectra of DCF, DETA and DCF precipitates, the solubility of DCF in GMA and EPA solvent, 1H NMR spectra of GMA, DCF, and DCF in GMA solution, FTIR spectra of epoxy polymer before and after curing at 25 °C for 48 h, swelling and color change of epoxy film with different soaking time, photographs of color change

Autonomic indication of mechanical damage and self-healing epoxy materials was conducted using 2′,7′-dichlorofluorescein (DCF) and glycidyl methacrylate (GMA) solution. When mechanical damage occured, the released DCF reacted with the amine group in the crack plane to sense the damage colorimetrical...

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Bibliographic Details
Main Authors Guo, Y. K, Chen, L, Xu, D. G, Zhong, J. R, Yue, G. Z, Astruc, D, Shuai, M. B, Zhao, P. X
Format Journal Article
Published 11.07.2016
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Summary:Autonomic indication of mechanical damage and self-healing epoxy materials was conducted using 2′,7′-dichlorofluorescein (DCF) and glycidyl methacrylate (GMA) solution. When mechanical damage occured, the released DCF reacted with the amine group in the crack plane to sense the damage colorimetrically, and the GMA rebound the cracks in the epoxy matrix by chemical or physical interaction. Autonomous indication of mechanical damage and self-healing epoxy materials was conducted using 2′,7′-dichlorofluorescein (DCF) and glycidyl methacrylate (GMA) solution.
Bibliography:1
FTIR spectra and curing degree of 4100HF/EH-4360S (100 : 30 wt) with temperature and GMA/EH-4360S (100 : 30 wt) with temperature and time, SEM micrographs of the healed crack surface, healing process of epoxy sample and healing efficiency. See DOI
H NMR spectra of GMA, DCF, and DCF in GMA solution, FTIR spectra of epoxy polymer before and after curing at 25 °C for 48 h, swelling and color change of epoxy film with different soaking time, photographs of color change of epoxy matrix after mechanical damage
10.1039/c6ra13519f
H NMR spectra of DCF, DETA and DCF precipitates, the solubility of DCF in GMA and EPA solvent
Electronic supplementary information (ESI) available: Experimental details, UV-vis spectra of DCF
in situ
ISSN:2046-2069
DOI:10.1039/c6ra13519f