主动热防护技术及自发汗冷却材料的研究进展

Thermal protection technology has important applications in aerospace and other fields. Active thermal protection technology plays a cooling effect by cooling medium in the matrix structure， and has the advantage of high cooling efficiency. Spontaneous transpiration cooling technology is a new type of active thermal protection technology， and can realize ‘intelligent cooling’. This paper briefly introduces the active thermal protection technology and spontaneous transpiration cooling materials， classifies and summarizes the matrix materials and cooling media of spontaneous transpiration cooling materials， and analyzes the development trend of spontaneous transpiration cooling materials.