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Lightening thermal insulation system is significantly crucial for the high-cost aerospace field. This paper prepared novel thermal insulation composites, N-doped graphene aerogels reinforced by ultrafine quartz fibers. The density is only 0.072g/cm3, and the thermal conductivity measured by Hot disk apparatus is 0.0327W/(mK). Meanwhile, with reinforced by ultrafine quartz fibers, the tensile strength...
To overcome the brittleness and the pyrolysis shrinkage of carbon aerogels, carbon fiber reinforced composites were prepared by copyrolysis of polyacrylonitrile fiber reinforced resorcinol-formaldehyde aerogel composites (PAN/RFs). The PAN/RFs were obtained by impregnating the PAN fiber felt with RF sol and then supercritical drying. Upon carbonization the PAN fiber shrinks with the RF aerogel, thus...
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