Abstract
Owing to high porosity and thermal insulation, aerogels have attracted considerable academic and industrial interest in the applications of many industries in recent years. SiC aerogel and SiC aerogel-like structure which own both good properties of aerogel materials and high performance of SiC materials have a wide application prospect. In this paper, polyacrylonitrile (PAN) nanofibrous membrane was prepared by electrospinning, PAN/SiC aerogels were synthesized by introduction of SiC nanowhiskers by freeze-drying method and thermal modification. On the hand PAN nanofibers, as a respective of organic materials, have acid resistance and good flexibility. On the other hand SiC nanowhiskers play a supporting role, and can keep structure stability. The results show that PAN/SiC aerogels with new procedure holds good integrated performances.
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