Electrospun Nano-boron–Ammonium Dinitramide Core–sheath Nanofibers

The nano-boron powder (n-B) exhibits remarkable efficacy as a combustion catalyst, making it a prime candidate for use in solid propellant metal burners. Nevertheless, throughout the storage phase, the surface of n-B powder is prone to oxidation and substantial agglomeration, resulting in challenges with ignition and incomplete energy dissipation when utilizing boron powder. The synthesis of nano-boron/nitrocellulose/ammonium dinitramide@fluorine rubber (n-B/NC/ADN@F2602) is accomplished via the coaxial electrospinning technique, with n-B uniformly dispersed within the core–shell fiber. The n-B is evenly distributed within the core–shell fiber, and as a result of F2602 encapsulation, the moisture absorption of n-B/NC/ADN@F2602 has decreased from 191.6 to 10.1