Thermal Investigations of Nanoaluminum/Perfluoropolyether Core-Shell Impregnated Composites for Structural Energetics

An operationally simple blendable approach to producing structural energetic composites loaded with nanoaluminum (n-Al) particles coated by perfluoropolyethers (PFPE) yields shape moldable, structurally flexible materials. The epoxide system of poly(ethylene glycol) diglycidyl ether (PEG-DGE) and tr...

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Hauptverfasser:	Kettwich, Sharon C, Kappagantula, Keerti, Kusel, Bradley S, Avjian, Eryn K, Danielson, Seth T, Miller, Hannah A, Pantoya, Michelle L, Iacono, Scott T
Format:	Report
Sprache:	eng
Schlagworte:	ALUMINUM ALUMINUM COMBUSTION BURNING RATE COATED MATERIALS Coatings, Colorants and Finishes COMBUSTION Combustion and Ignition COMPOSITE MATERIALS DIFFERENTIAL SCANNING CALORIMETRY ENERGETIC PROPERTIES EXOTHERMIC REACTIONS FABRICATION FLAME PROPAGATION FLEXIBLE MATERIALS FLUOROPOLYMERS GRAVIMETRIC ANALYSIS HOMOGENEITY IGNITION METALLIZING MICROSCOPY MOLECULE MOLECULE INTERACTIONS NANOPARTICLES PE611102A PERFLOUROPOLYETHERS PFPE(PERFLUOROPOLYETHERS) POLYETHYLENE POLYETHYLENE GLYCOL Polymer Chemistry PURITY SYNTHESIS(CHEMISTRY) TETA(TRIETHYLENETETRAMINE) Thermodynamics
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Beschreibung
Zusammenfassung:	An operationally simple blendable approach to producing structural energetic composites loaded with nanoaluminum (n-Al) particles coated by perfluoropolyethers (PFPE) yields shape moldable, structurally flexible materials. The epoxide system of poly(ethylene glycol) diglycidyl ether (PEG-DGE) and triethylenetetramine (TETA) are partially cured with an energetic blend of n-Al/PFPE core-shell particles and mechanically mixed and produce a homogeneous composite material whereby energetic potency is indefinitely shelf-stable. The composites are characterized by a suite of thermal techniques using DSC, TGA, and SDT in addition to open flame burn rate and heat of combustion measurements. This composite system may further expand the use of energetic materials with tailorable exothermic properties. Published in Thermochimica Acta, v591 p45-50, 19 July 2014. Sponsored in part by AFRL and AFOSR. The original document contains color images.