Self-healing Epoxy with Epoxy-amine Dual-capsule Healing System

DOI

10.2991/ame-17.2017.42How to use a DOI?

Keywords

Self-healing epoxy, Smart materials, Fracture and fatigue, Healing efficiency.

Abstract

A new type of epoxy composite with self-healing functionality was successfully developed in this work. Self-healing is achieved via embedded microcapsules containing diglycidyl 1,2-cyclohexanedicarboxylate(DGCHD)and microcapsules containing modified aliphatic amine(HB-1618) hardener. This paper also investigated the preparation and properties of curing agent microcapsule which was prepared by the solvent evaporation method. Recovery of impact strength is assessed through izod notched impact testing for impact specimens. It was found that the content of both microcapsules largely influenced the healing efficiency at a certain range. As a result, the optimal filling contents of epoxy-containing microcapsules and hardener-containing microcapsules embedded in the epoxy matrix are 6 wt. % and 9 wt. %, offering a ~65.6% healing efficiency. Scanning electron microscope (SEM) photos of fracture surface before and after healing process proved that the healing process was successfully realized.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Hai-Ping Wang
AU  - Yang-Qian Zhu
AU  - Meng-Qiang Li
PY  - 2017/04
DA  - 2017/04
TI  - Self-healing Epoxy with Epoxy-amine Dual-capsule Healing System
BT  - Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)
PB  - Atlantis Press
SP  - 246
EP  - 250
SN  - 2352-5401
UR  - https://doi.org/10.2991/ame-17.2017.42
DO  - 10.2991/ame-17.2017.42
ID  - Wang2017/04
ER  -