A Novel Hybrid Binder System for Extrudable Composite Propellant

Deuskar, V. D.; Mulage, K. S.; Mishra, Ashwani Kumar; Patkar, R. N.; Kharat, S. H.; Kakade, S. D.

doi:10.1615/intjenergeticmaterialschemprop.2012003772

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“…Among various polymer based energetic binders used in solid propellants, fluorine containing polymers have been able to give the propellant sufficient mechanical integrity as well as enhance its energetic properties. 2 The reaction induced fluorination of aluminum has been studied and has a calculated energy density greater than that of the oxidation of aluminum on a kilojoule per gram basis. Formation of aluminum fluoride (AlF3) relative to alumina (Al2O3) releases about 80 % more energy per unit mass than oxidation of aluminum (55.7 kJ/g and 31 kJ/g, respectively).…”

Section: Introductionmentioning

confidence: 99%

Ignition and Reaction Analysis of High Loading Nano-Al/Fluoropolymer Energetic Composite Films

DeLisio

Huang

Jian

et al. 2014

52nd Aerospace Sciences Meeting

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With the recent implementation of nano sized metal powders into energetic composites such as solid rocket propellants, incorporating metal nanoparticles with high mass loading in the propellant has become an issue. In this work, an electrospray deposition technique was employed to increase particle loading of nano aluminum (n-Al) and demonstrate the potential of the fluoropolymer, polyvinylidene fluoride (PVDF), as an energetic binder. A mass percentage of 50 % n-Al in PVDF was determined to have the optimal combustion qualities when ignited in air. The Al/PVDF energetic nanocomposite film morphologies were analyzed using scanning electron microscopy (SEM) and energy-dispercive x-ray spectroscopy (EDS). Combustion characteristics of the film were analyzed using thermogravimetric analysis/mass spectrometry (TGA/MS) and temperature jump time of flight mass spectrometry (T-jump TOFMS). Ignition temperatures were determined at various pressured in air and argon environments.

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Section: Introductionmentioning

confidence: 99%