This paper presents a novel strategy for the fast and scalable fabrication of crosslinked polyimide (CPI) aerogel fibers using wet-spinning and ambient pressure drying via UV-enhanced dynamic gelation. This approach enables a rapid sol-gel transition, resulting in strongly crosslinked fibers with high specific modulus and excellent thermal insulation properties comparable to down, but with significantly reduced thickness. The method allows for continuous production of hundreds of meters of fibers within 7 hours, significantly faster than previous methods.
