Superelastic and ultralight polyimide aerogels as thermal insulators and particulate air filters
2019/11/27 21:44:23
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We utilized electrospun polyimide nanofibers as building blocks to construct a hierarchically porous architecture through freeze-drying. Superelasticity, recoverable ultimate strain of 99%, has been obtained by thermally induced intermolecular condensation. Aerogels also possess ultralow density, high-temperature stability, low thermal conductivity and excellent performance in PM2.5 filtration.
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