Recent advances in shape memory epoxy resins and composites

Preparation, properties, and applications of shape memory (SM) epoxy resin (SMEP)-based systems and composites have been surveyed in this chapter. SM polymers are capable of memorizing one or more temporary shapes and recovering to the permanent shape upon an external stimulus that is usually heat. The underlying mechanisms of SM actions are introduced and discussed. Emphasis was put to present the progress on SMEP and related composite systems and to discuss their potential for practical applications. Trends deduced for future developments include the combination of SM with additional functionalities, such as self-healing, sensing, actuation, and the creation of multifunctional smart material systems.