自修复固体推进剂研究进展

Several important types of self-repairing mechanisms of polymer materials including external and intrinsic self-repairing were introduced. The methyl furan terminated polybutadiene binders based on Diels-Alder reaction, polyurethane binders based on dynamic photo-crosslinking reaction, self-repairing GAP binders based on disulfide bond, and their applications in solid propellants, were reviewed respectively. The future development of self-repairing solid propellants and their potential application were introduced. It was pointed out that, by considering the overall formulation of solid propellants, designing the formulation systems of solid propellants matches the self-repairing function. While realizing the self-repairing property, improving cooperatively the mechanical and energy properties of propellants will be an important research direction of self-repairing solid propellants in the future with 38 references.