Abstract
Self-healing polymers and nanocomposites constitute a major class of responsive materials. These polymers have the aptitude to reversibly and intrinsically overhaul their damage. For aerospace applications, thermoplastic and thermosetting polymers have been filled with nanocarbons to automatically heal structural damages. This chapter elaborates on the applications and prominence of self-healing nanocomposites in the aerospace sector. The self-healing behavior of nanocomposites is usually controlled by various factors such as the interdiffusion of polymer chains and nanoparticles, microphase separation, and matrix–nanofiller contacts. Additionally, self-directed healing can be attained using healing agents such as nanocapsules and nanocarbon nanoparticles. The interactions such as van der Waals forces and physical or chemical connections govern the mechanism of self-healing. Self-healing nanocomposites have been used to develop autonomous structural components, panels, laminates, membranes, coatings, etc. for the antistructural damage of space materials. Future research must focus on the design of new self-healing polymeric nanocomposites with advantageous features for smart, resilient, and high performance aeronautical structures.
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