Thermal investigations of nanoaluminum/perfluoropolyether core-shell impregnated composites for structural energetics

被引:27
作者
Kettwich, Sharon C. [1 ,2 ]
Kappagantula, Keerti [3 ]
Kusel, Bradley S. [1 ,2 ]
Avjian, Eryn K. [1 ,2 ]
Danielson, Seth T. [1 ,2 ]
Miller, Hannah A. [1 ,2 ]
Pantoya, Michelle L. [3 ]
Iacono, Scott T. [1 ,2 ]
机构
[1] US Air Force Acad, Dept Chem, Colorado Springs, CO 80840 USA
[2] US Air Force Acad, Chem Res Ctr, Colorado Springs, CO 80840 USA
[3] Texas Tech Univ, Dept Mech Engn, Lubbock, TX 79409 USA
关键词
Hybrid materials; Composite materials; Nanoparticles; Energetic materials; Epoxides; ALUMINUM; BEHAVIOR;
D O I
10.1016/j.tca.2014.07.016
中图分类号
O414.1 [热力学];
学科分类号
摘要
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 by Elsevier B.V.
引用
收藏
页码:45 / 50
页数:6
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