Influence of Bismuth Complex Catalysts on the Cure Reaction of Hydroxyl-terminated Polyether-based Polymer Bonded Explosives

Piroxicam [4-hydroxy-2-methyl-N-2-(pyridyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide] is an effective antiinflammatory analgesic drug. In the present work, piroxicam has been chemically modified into its bismuth complex by reacting it with bismuth nitrate at ambient conditions and optimized stoichiometric ratio. The synthesis of the complex has been monitored by TLC and characterized well by Fourier Transform Infrared (FTIR), UV-Vis, ICP, TGA, XRD and SEM. The luminescent behavior of this complex has also been studied which determined its photoluminescent property.

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Polyurea Networks from Moisture-Cure, Reaction-Setting, Aliphatic Polyisocyanates with Tunable Mechanical and Thermal Properties

ACS Applied Polymer Materials ◽

10.1021/acsapm.1c00578 ◽

2021 ◽

Author(s):

Antoni Sánchez-Ferrer ◽

Viktor Soprunyuk ◽

Max Engelhardt ◽

Ralf Stehle ◽

H. Albert Gilg ◽

...

Keyword(s):

Thermal Properties ◽

Mechanical And Thermal Properties ◽

Cure Reaction

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Controllable regulation of the segregated conductive networks targeted enhanced thermal conduction performance of polymer bonded explosives

Composites Part A Applied Science and Manufacturing ◽

10.1016/j.compositesa.2021.106370 ◽

2021 ◽

Vol 145 ◽

pp. 106370

Author(s):

Peng Wang ◽

Xin Li ◽

Yu Dai ◽

Guansong He

Keyword(s):

Thermal Conduction ◽

Polymer Bonded Explosives

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Dynamic response properties of polymer bonded explosives under different excitation by deceleration

Materials & Design ◽

10.1016/j.matdes.2021.109810 ◽

2021 ◽

pp. 109810

Author(s):

Wenzheng Xu ◽

Fengwei Guo ◽

Xin Liang ◽

Tianlun Yan ◽

Yang Xu ◽

...

Keyword(s):

Dynamic Response ◽

Response Properties ◽

Polymer Bonded Explosives

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Cure reaction kinetics of polyamide

Thermochimica Acta ◽

10.1016/0040-6031(85)85050-4 ◽

1985 ◽

Vol 93 ◽

pp. 195-198 ◽

Cited By ~ 2

Author(s):

K.N Ninan ◽

K Krishnan

Keyword(s):

Reaction Kinetics ◽

Cure Reaction ◽

Kinetics Of

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Kinetic method by using calorimetry to mechanism of epoxy-amine cure reaction

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-005-7144-3 ◽

2006 ◽

Vol 85 (2) ◽

pp. 455-461 ◽

Cited By ~ 8

Author(s):

R. M. Vinnik ◽

V. A. Roznyatovsky

Keyword(s):

Kinetic Method ◽

Cure Reaction ◽

Epoxy Amine

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Thermo-Electromechanical Response of Polymer-Bonded Explosives for Structural Health Monitoring of Energetic Materials

Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies ◽

10.1115/smasis2017-3869 ◽

2017 ◽

Cited By ~ 1

Author(s):

Samantha N. Rocker ◽

T. Wade Pearrell ◽

Engin C. Sengezer ◽

Gary D. Seidel

Keyword(s):

Dielectric Properties ◽

Structural Health Monitoring ◽

Health Monitoring ◽

Energetic Materials ◽

Thermal Loading ◽

Binder Phase ◽

Structural Health ◽

Embedded Sensing ◽

Polymer Bonded Explosives ◽

Electrical And Dielectric Properties

Distributing a carbon nanotube sensing network throughout the binder phase of energetic composites is investigated in an effort for real time embedded sensing of localized heating in polymer bonded explosives (PBXs) through thermo-electromechanical response for in situ structural health monitoring (SHM) in energetic materials. The experimental effort herein is focused on using 70 wt% Ammonium Perchlorate (AP) (solid oxidizer used in solid rocket propellants) crystals embedded into epoxy binder having concentration of 0.1 wt% multi-walled carbon nanotubes (MWCNTs) relative to entire hybrid energetics. Electrical and dielectric properties of neat (i.e. no MWCNTs) energetics and MWCNT hybrid energetics are quantitatively and qualitatively evaluated under localized thermal loading. Electrical and dielectric properties showed variations for both neat energetics and MWCNT hybrid energetics depending on input frequency measurements. Significant thermo-electromechanical response was obtained for MWCNT AP hybrid energetics, providing a proof of concept for thermo-electromechanical sensing for realtime SHM in energetics.

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