fig8
From: Applications of flexible polyimide: barrier material, sensor material, and functional material
Figure 8. (A) Photos of PI/BC and PI aerogel before and after lyophilization; and thermal insulation performance of different polymers at -40 °C and 170 °C[27]; (B) Preparation process of PVDF/PI nanofiber composite aerogel[72]; (C) Demonstration of the flexibility of PI nanofiber cross-linked PI aerogel film and test of the thermal insulation performance after crimping deformation[11]; (D) Mechanical property, flame retardant property and thermal insulation property of PI-SiO2 composite aerogel are presented[73].
