Polyimide-based aerogels integrate the excellent mechanical properties

good thermal stability against high/low temperature and low thermal conductivity of polyimides and high porosity

low density and low thermal conductivity of aerogel

showing great application prospects in aerospace

military equipment

fire safety and other advanced fields. The chemical structure

preparation technology and the structure-performance relationship are the keys to the development of polyimide aerogels. Combined with the relevant research work of our research group

this paper briefly introduces the research situation of polyimide aerogel

and prospects its future research direction and development trend

providing a useful reference for the subsequent research.