Publication de 6 numéros par an
ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678
Indexed in
BORON NANOPARTICLE-RICH FUELS FOR GAS GENERATORS AND PROPELLANTS
RÉSUMÉ
This study reports on the production and characterization of energetic polymer-capped boron for solid fuel applications. It is known that the addition of metal and metal-like particles to solid fuels and propellants can improve the performance of both rocket and air-breathing propulsion systems. The use of boron is very attractive for these applications due to its high heat of combustion on both a gravimetric (58 kJ/g) and volumetric (136 kJ/cm3) basis. However, the exploitation of the high theoretical energy of boron has been limited by a few undesirable properties of this metal. Among them, one notes the existence of a resilient oxide layer on the particle surface affecting the ignition and combustion of boron particles. The capping of boron nanoparticles with a polymer can provide a solution to the aforementioned problem. The use of an energetic polymer for that purpose can bring additional heat close to the surface of the nanoparticles and facilitate their ignition. In the present work, boron nanoparticles were produced by synthesis of surface-functionalized boron. The route was adapted to obtain additional hydroxyl-functional groups on the particles. These hydroxyl sites were used to graft a diisocyanate, and then produce an energetic polymer matrix based on polyurethane chemistry by addition of glycidyl azide polymer, resulting in boron nanoparticles coated by energetic polymers. This can lead to significantly enhanced boron particle combustion.
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Xu Yang, Cui Qing-zhong, Zhao Cheng-wen, Liquid phase in-situ synthesis of LiF coated boron powder composite and performance study, Defence Technology, 16, 3, 2020. Crossref
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Borisov Yurii A., Makarenkov Anton V., Kiselev Sergey S., Kononova Elena G., Ponomaryov Andrey B., Budnik Mikhayl I., Ol'shevskaya Valentina A., Prediction of energetic properties of carboranyl tetrazoles based on DFT study, Materials Chemistry and Physics, 240, 2020. Crossref
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Icten Okan, Zumreoglu-Karan Birgul, Energetic aspects of elemental boron: a mini-review, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 44, 1, 2022. Crossref
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Huang Xuefeng, Zhang Minqi, Lin Chengyuan, Yang Yihang, Li Shengji, Li Hui, Yang Yanjing, Qin Zhao, Zhao Fengqi, Comparison on ignition and combustion of AlMgB composite fuel and B fuel, Chemical Engineering Journal, 450, 2022. Crossref
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Makarenkov Anton V., Kiselev Sergey S., Kononova Elena G., Dolgushin Fedor M., Peregudov Alexander S., Borisov Yurii A., Ol’shevskaya Valentina A., Synthesis, Characterization and DFT Study of a New Family of High-Energy Compounds Based on s-Triazine, Carborane and Tetrazoles, Molecules, 27, 21, 2022. Crossref