Nanocomposites based on epoxy vitrimer

Epoxy vitrimer nanocomposites represent a class of advanced materials merging high performance with sustainability. The incorporation of nanofillers into a polymer matrix to enhance material properties is a well-established strategy. However, the permanently cross-linked networks of conventional epoxy thermosets render the resulting composites non-recyclable, contributing to significant economic and environmental concerns. In contrast, epoxy vitrimers incorporate dynamic covalent bonds, which enable reprocessability and self-healing while retaining the mechanical robustness of thermosets, thereby offering promising routes toward recyclable nanocomposites. This review outlines recent progress in epoxy vitrimer nanocomposites, highlighting the pivotal role of various nanofillers—such as carbon nanotubes, graphene, silica, and magnetic Fe₃O₄ nanoparticles—in not only reinforcing mechanical properties but also introducing functionalities including electrical and thermal conductivity, self-healing, and stimulus responsiveness. These materials have demonstrated considerable potential for applications in electromagnetic interference shielding, smart coatings, and flexible sensors. Through a comprehensive analysis of matrix materials, fillers, processing techniques, and emerging applications, this review aims to provide valuable insights for the future development of sustainable and multifunctional nanomaterials.