CPC D01D 5/18 (2013.01) [B29C 41/042 (2013.01); C04B 35/6229 (2013.01); C04B 41/0045 (2013.01); D01F 9/10 (2013.01); C04B 2235/658 (2013.01); C04B 2235/661 (2013.01)] | 20 Claims |
1. A method of preparing hexagonal boron nitride (h-BN) fibers comprising:
mixing polyvinylpyrrolidone (PVP) and boron oxide (B2O3) to form a polymer precursor or mixing PVP and ammonia borane (BH3NH3) to form the polymer precursor;
forcespinning the polymer precursor to form fibers of the polymer precursor;
curing the fibers to form polymer fibers; and
pyrolyzing the polymer fibers to form the h-BN fibers.
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