Combustion behavior of AP/HTPB/Al composite propellant containing hydroborate iron compound

Pang, Weiqiang; DeLuca, Luigi T.; Fan, Xuezhong; Глотов, О. Г.; Wang, Ke; Zhao, Qin; Zhao, Fengqi

doi:10.1016/j.combustflame.2020.06.037

Cited by 40 publications

(12 citation statements)

References 25 publications

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“…These polymeric matrices are used for binding other solid components of the rocket propellants, to protect them against environmental agents and to confer a certain geometry and mechanical strength. In state-ofthe-art composite rocket propellants, ammonium perchlorate (AP) is the preferred oxidizer, almost without exception, due to its outstanding properties [1,2,7,8]. However, in the last decade, environmental impact issues have urged research activities for a replacement with "green" oxidizers, such as phase-stabilized ammonium nitrate (PSAN) or ammonium dinitramide (ADN) [2,[9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Aluminum fine powder, magnesium, and boron are the main candidates as fuels in rocket propellant formulations. Together with the oxidizers and additives, the solid fuel is introduced in the polymeric matrix to ensure homogeneity, protection, and proper mechanical characteristics of the energetic mixture [2,8,[12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…The curative agents used for these types of polymers employed as binders are usually based on di-or tri-functional epoxides or aziridines [18]. Modern solid rocket propellants use hydroxylterminated polybutadiene (HTPB), an inert binder from the same class as CTPB, which ensures the optimal combination of thermodynamic and mechanical properties [7,8,18,20]. The HTPB binders exhibit superior elongation capacity at low temperatures and better ageing properties in contrast with CTPB [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Novel Polyurethanes Based on Recycled Polyethylene Terephthalate: Synthesis, Characterization, and Formulation of Binders for Environmentally Responsible Rocket Propellants

et al. 2021

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Novel polyurethane-based binders, specifically designed for environmentally responsible rocket propellant composites, were obtained by employing the polyester-polyols that resulted from the degradation of polyethylene terephthalate waste. A new class of “greener” rocket propellants, comprising polyurethanes (based on recycled PET) as the binder, phase stabilized ammonium nitrate (PSAN) as the eco-friendly oxidizer, and triethylene glycol dinitrate (TEGDN) as the energetic plasticizer, together with aluminum as fuel and Fe2O3 as the catalyst, is herein reported. The components of the energetic mixtures were investigated (individually and as composite materials) through specific analytical tools: 1H-NMR, FT-IR, SEM-EDX, DTA and TGA, tensile and compression tests, DMA, and micro-CT. Moreover, the feasibility of this innovative solution is sustained by the ballistic performances exhibited by these composite materials in a subscale rocket motor, proving that these new formulations are suitable for rocket propellant applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel Polyurethanes Based on Recycled Polyethylene Terephthalate: Synthesis, Characterization, and Formulation of Binders for Environmentally Responsible Rocket Propellants

et al. 2021

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“…AP could decompose with the release of free oxygen. AP exposes complex decomposition process with phase transition from an orthorhombic to a cubic structure at 240 0 C; this strong endothermic crystallographic phase change could withstand high activation energy [4][5][6][7][8][9][10]. AP crystal lattice becomes unstable and melts at 557 0 C; therefore AP undergoes degradation along with dissociative sublimation [11].…”

Section: Introductionmentioning

confidence: 99%

Nickel Nanoparticles with Superior Catalytic Activity for Autonomous Decomposition of Ammonium Percholorate

Elbasuney

Yehia

Saadoune

2021

Preprint

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Nickel nanoparticles with partially filled d-shell could offer advanced catalytic performance; to common solid propellant catalysts (ferric oxide). This study reports on the facile fabrication of nickel and ferric oxide catalysts of 10 nm, and 5 nm particle sizes respectively. Fabricated particles were re-dispersed in organic solvent and effectively integrated into ammonium percholorate (AP). Elemental mapping confirmed uniform particle dispersion into APC. The catalytic efficiency of nickel was evaluated to Fe2O3 particles using DSC and TGA. AP demonstrated endothermic crystallographic phase change at 242 0C, with subsequent two exothermic decomposition reactions. Nickel demonstrated decrease in endothermic phase change by 49 % compared with 39 % for ferric oxide; this action means high catalytic activity with low activation energy. Whereas AP demonstrated total heat release of 742 J/g; nickel offered enhanced heat output by 89 % compared with 57 % for ferric oxide. The two main decomposition peaks were merged into single peak. Nickel demonstrated decrease in main decomposition temperature by 105 oC compared with 62 oC for ferric oxide. This manuscript shaded the light on nickel as novel emergent nanocatalyst with superior performance for advanced energetic systems.

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“…Al-based materials are still the most popular research topic in the field of energetic materials, despite having been used for dozens of years [ 3 ]. Recently, Pang et al reported on the combustion behavior of AP/HTPB/Al composite propellants containing a hydroborate iron compound [ 4 ]. The results showed that the combustion characteristics were improved by the introduction of 5% hydroborate iron.…”

Section: Introductionmentioning

confidence: 99%

Influences of Multilayer Graphene and Boron Decoration on the Structure and Combustion Heat of Al3Mg2 Alloy

Dong

Qiu²,

et al. 2020

Nanomaterials

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To improve the engine-driven performance of propellants, high-energy alloys such as Al and Mg are usually adopted as annexing agents. However, there is still room for improvement in the potential full utilization of alloy energy. In this study, we investigated how to improve combustion efficiency by decorating Al3Mg2 alloy with multilayer graphene and amorphous boron. Scanning electron microscopy and Raman tests showed that decorating with multilayer graphene and amorphous boron promoted the dispersion of Al3Mg2 alloy. The results showed that decorating with 1% boron and 2% multilayer graphene improved the combustion heat of Al3Mg2 alloy to 32.8 and 30.5 MJ/kg, respectively. The coexistence of two phases improved the combustion efficiency of the matrix Al3Mg2 alloy.

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Combustion behavior of AP/HTPB/Al composite propellant containing hydroborate iron compound

Cited by 40 publications

References 25 publications

Novel Polyurethanes Based on Recycled Polyethylene Terephthalate: Synthesis, Characterization, and Formulation of Binders for Environmentally Responsible Rocket Propellants

Novel Polyurethanes Based on Recycled Polyethylene Terephthalate: Synthesis, Characterization, and Formulation of Binders for Environmentally Responsible Rocket Propellants

Nickel Nanoparticles with Superior Catalytic Activity for Autonomous Decomposition of Ammonium Percholorate

Influences of Multilayer Graphene and Boron Decoration on the Structure and Combustion Heat of Al3Mg2 Alloy

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