Self-Healing Ag/Epoxy Electrically Conductive Adhesive Using Encapsulated Epoxy-Amine Healing Chemistry

摘要

In this study, a dual-microcapsule epoxy-amine self-healing concept is used for electrically conductive adhesives (ECAs). It provides the ECA samples with the ability to recover mechanical and electrical properties automatically. Epoxy and amine microcapsules were prepared and incorporated into silver/epoxy ECAs. The healing efficiency and bulk resistivity of the undamaged, damaged, and healed specimens were measured, respectively. The optimal loading of the epoxy and amine microcapsules is 6 wt % (weight ratio 1.05), and the bulk resistivity of the healed specimens is 3.4 x 10(-3) Omega cm. (C) 2014 Wiley Periodicals, Inc.