Novel composite films with strong self healing ability
The built-in self-healing capability, which can substantially repair the damaged polymeric materials, has become research hotspots in recent years. In a new study, double-walled microcapsules were introduced in epoxy composite films to obtain a strong self-healing ability.
Test results showed that the epoxy composite films with 3.0 wt% microcapsules had the highest mechanical property improvement and the composite films with 5.0 wt% microcapsules achieved the highest self-healing efficiency of 61 %.
The study has been published in Progress in Organic Coatings, Volume 157, August 2021.