Direct Deposit of Highly Reactive Bi(IO₃)₃‐ Polyvinylidene Fluoride Biocidal Energetic Composite and its Reactive Properties

Abstract

Metal iodate oxidizers are synthesized and evaluated as oxidizers in thermite reactions to generate both heat and a biocidal reaction product for bioagent defeat. TGA/DSC/MS and T-jump TOFMS analysis show gas-phase iodine release from metal iodate decomposition at both low and high heating rates. In constant volume combustion tests, Bi(IO 3 ) 3 /Al thermite outperforms other metal iodate/Al and traditional thermites. Mechanically sound composites with high mass loadings of particulates are formed by direct electrospray of synthesized metal iodates, nanoaluminum fuel, and polyvinylidine fluoride (PVDF) binder/oxidizer, and burn speeds are measured in both air and argon atmospheres.

Silver ferrite: a superior oxidizer for thermite-driven biocidal nanoenergetic materials

“…The most widely adopted metal is aluminum due to its abundance and competitive reactivity when compared with other metals. 16 Various oxidizers, such as metal oxides, [17][18][19][20][21][22][23][24][25][26] iodine oxides, [27][28][29][30][31][32] sulfates, 33,34 iodates, 12,35,36 potassium salts, 37,38 and etc., have been employed in formulation of thermites. Among all, halogens-containing and silver-containing oxidizers have drawn attention because of their excellent biocidal properties.…”

“…Among all, halogens-containing and silver-containing oxidizers have drawn attention because of their excellent biocidal properties. [39][40][41][42][43] For halogens, iodine stands out owing to its strong neutralization effect and different iodine-containing oxy-compounds, such as metal iodates and iodine oxides, 5,12,[18][19][20][21][22][23][24][25][27][28][29][30][31][32][33][35][36][37]44 have been studied in thermite systems.…”

Direct Deposit of Fiber Reinforced Energetic NanoComposites

“…Thus far, most studies related to nanothermites have focused on the fuel-oxidizer system itself. However, in some potential applications (e. g. the biocidal agents [7], cloud-seeding material [8]), the thermite powder were incorporated with polymer binders (epoxy, nitrocellulose, and fluoropolymer [9][10][11][12][13][14]) to form the nanothermite-polymer composites. A large content of thermite is nominally desirable since it is the dominate energy releasing source, while the polymer binder is employed to give the composite the necessary mechanical integrity.…”

Mesoporous Silica Spheres Incorporated Aluminum/Poly (Vinylidene Fluoride) for Enhanced Burning Propellants

“…The details about the electrospray system can be found in our previous studies . PVDF powder was first dissolved into DMF to which Al NPs were added.…”