期刊
MATERIALS LETTERS
卷 163, 期 -, 页码 244-246出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.10.090
关键词
Biomimetic; Polymers; Self-healing; Hansen solubility parameters; Welding; Functional
资金
- National Natural Science Foundation of China [50775222]
- Equipment Repair and Reformation Program, China [2014WG13]
Solvents have been used for self-healing materials for swelling mechanism. However, no study has investigated the prediction of solvent healing performance. In this work, we used Hansen solubility parameters (HSPs) to predict crack healing. A 2D solvent map was constructed by polarity and hydrogen bonding parameter. Results showed that the degree of swelling was relative to the HSP distance (D) between solvent and epoxy resin in the map. Moreover, manual healing experiments showed that solvent healing performance was correlated with swelling. Therefore, the healing performance of solvents could be predicted by using HSPs. For epoxy resin, solvents with D < 15 had excellent healing performance. This framework simultaneously considered D and water solubility and could be readily extended to fast screen green solvents for microcapsule-loaded self-healing materials. (C) 2015 Elsevier B.V. All rights reserved.
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