Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139383
Title: Direct microencapsulation of pure polyamine by integrating microfluidic emulsion and interfacial polymerization for practical self-healing materials
Authors: Zhang, He
Zhang, Xin
Bao, Chenlu
Li, Xin
Sun, Dawei
Duan, Fei
Friedrich, Klaus
Yang, Jinglei
Keywords: Engineering::Mechanical engineering
Issue Date: 2018
Source: Zhang, H., Zhang, X., Bao, C., Li, X., Sun, D., Fei, D., . . . Yang, J. (2018). Direct microencapsulation of pure polyamine by integrating microfluidic emulsion and interfacial polymerization for practical self-healing materials. Journal of Materials Chemistry A, 6(47), 24092-24099. doi:10.1039/C8TA08324J
Journal: Journal of Materials Chemistry A
Abstract: Encapsulation of polyamines for the practical application of self-healing epoxy is promising yet challenging due to their high reactivity and good solubility in water and most organic solvents. Herein, we developed an innovative method to directly synthesize microcapsules containing pure polyamine by integrating microfluidic emulsion and interfacial polymerization. Using this integration to make full use of the advantages and avoid the shortcomings of the involved two techniques, the properties of the fabricated microcapsules could be delicately tailored according to the practical demands of self-healing materials. The superiority of the obtained polyamine microcapsules was demonstrated via a dual-microcapsule high-performance self-healing system with fully autonomous recoverability, high thermal and long-term stability, relatively fast healing kinetics. The highest healing efficiency of 111 ± 12% in terms of recovered mode I fracture toughness was achieved at room temperature for 48 h without any external intervention. The high performance, environmental stability, and low cost and toxicity introduced by the robust microcapsules promote the potential practical application of this self-healing system.
URI: https://hdl.handle.net/10356/139383
ISSN: 2050-7488
DOI: 10.1039/C8TA08324J
Rights: © 2018 The Royal Society of Chemistry. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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