Thermo-analytical study of 2,2,2-trinitroethyl-formate as a new oxidizer and its propellant based on a GAP matrix in comparison with ammonium dinitramide

Abd‐Elghany, Mohamed; Elbeih, Ahmed; Klapötke, Thomas M.

doi:10.1016/j.jaap.2018.05.004

Cited by 34 publications

(18 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was reported that it has positive effect on the detonation properties of several explosives in comparison with HTPB binder systems , . In addition, the thermal stability and decomposition kinetics of GAP based PBXs was studied and confirmed its stability under different conditions . In case of rocket propellants studies, the GAP polymeric matrix has the ability to encapsulate the oxidizer and even the metallic fuel and form cross‐linked matrix .…”

Section: Introductionmentioning

confidence: 93%

Improving the Mechanical Properties of Glycidyl Azide Polymeric Matrix Used in Composite Solid Rocket Propellant by Adding Advanced Cross‐Linker

Boshra

Elbeih

Mostafa

2019

Zeitschrift anorg allge chemie

Self Cite

View full text Add to dashboard Cite

Glycidyl azide polymer (GAP) based binders have poor mechanical characteristics in comparison with hydroxyl terminated polybutadiene (HTPB) binders. In this study, advanced cross-linker was used to improve the mechanical properties of GAP binder. GAP was prepared and characterized in comparison with HTPB prepolymer. Density, characteristics groups, nitrogen content, humidity, viscosity, and milligram equivalent of (OH) per binders were determined. A cross-linker consists of trimethylol propane (TMP) and curing catalyst, dibutyltin dilaurate (DBTDL), was used as an additive to GAP polymeric matrix to enhance its functionality. Polymeric matrices based on GAP and HTPB were prepared with different curing ratio (NCO/OH) ranging from 0.7 to 1.5. Different weight percentages of cross-linker * Dr. A. Elbeih

show abstract

Section: Introductionmentioning

confidence: 93%

Improving the Mechanical Properties of Glycidyl Azide Polymeric Matrix Used in Composite Solid Rocket Propellant by Adding Advanced Cross‐Linker

Boshra

Elbeih

Mostafa

2019

Zeitschrift anorg allge chemie

Self Cite

View full text Add to dashboard Cite

show abstract

“…For the advanced modified energetic compositions, it is important to determine the thermal characteristics due to their intrinsic connection with the performance of detonation and combustion of the used composition [42][43][44][45][46]. Also the thermal stability and the activation energy (Ea) are essential to be determined in addition to the decomposition heat [47][48][49][50][51].…”

Section: Non Isothermal Kinetic Parameters Studiesmentioning

confidence: 99%

Investigation of a novel nanothermite colloid based on CuO coated CNTs on the thermo-analytical characteristics of 1,3,5-trinitro-1,3,5-triazinane

Elbeih

2021

Preprint

Self Cite

View full text Add to dashboard Cite

Nanothermite colloid is a promising field of research used to enhance the characteristics of energetic materials. In this study, pre-treated surfaces of multiwall-carbon nanotubes (MWCNTs) were catalysed to help the deposition of a metal and the coating process by copper (Cu) nanoscale layer through electroless deposition. The formed hybrids coated by Cu were treated at 250°C to form MWCNTs coated by CuO. Isopropyl alcohol was used to suspend the coated MWCNTs with aluminium nanoparticles (120 nm) in order to form nano thermite colloid by ultrasonic technique. The presence of CuO layer plays the role of an active oxidizer for the Aluminum nanoparticles. The obtained colloid was incorporated and dispersed in 1,3,5-trinitro-1,3,5-triazinane (RDX). The influence of colloid on RDX decomposition kinetic was evaluated using the isoconversional methods (modified Kissinger-Akahira-Sunose (KAS) methods). The mean value of apparent activation energy was reduced by 37.5 %. This dramatic change in RDX decomposition ascribed trait to the nano-thermite colloid reactivity and the facile integration of colloidal thermite particles with the RDX.

show abstract

“…Abd-Elghany et al [99], in turn focus on employing a new oxidising agent, 2,2,2-trinitroethylformate (TNEF), in propellant formulations using GAP. Propellants containing 14% of cross- Futko et al [97] approached a RDX/GAP solid propellant from a theoretical standpoint, opting to model its behaviour and combustion characteristics in a rocket engine, providing much information about the thermal efficiency of such solid propellants in dedicated combustion chambers.…”

Section: Composite Propellantsmentioning

confidence: 99%

“…Abd-Elghany et al [99], in turn focus on employing a new oxidising agent, 2,2,2-trinitroethyl -formate (TNEF), in propellant formulations using GAP. Propellants containing 14% of cross-linkedGAP cured using hexamethylene diisocyanate (CI4), and 86% of either TNEF or ammonium dinitramide (ADN) were investigated.…”

Section: Composite Propellantsmentioning

confidence: 99%

Glycidyl Azide Polymer and its Derivatives-Versatile Binders for Explosives and Pyrotechnics: Tutorial Review of Recent Progress

Jarosz

Stolarczyk

Wawrzkiewicz-Jałowiecka

et al. 2019

Molecules

View full text Add to dashboard Cite

Glycidyl azide polymer (GAP), an energetic binder, is the focus of this review. We briefly introduce the key properties of this well-known polymer, the difference between energetic and non-energetic binders in propellant and explosive formulations, the fundamentals for producing GAP and its copolymers, as well as for curing GAP using different types of curing agents. We use recent works as examples to illustrate the general approaches to curing GAP and its derivatives, while indicating a number of recently investigated curing agents. Next, we demonstrate that the properties of GAP can be modified either through internal (structural) alterations or through the introduction of external (plasticizers) additives and provide a summary of recent progress in this area, tying it in with studies on the properties of such modifications of GAP. Further on, we discuss relevant works dedicated to the applications of GAP as a binder for propellants and plastic-bonded explosives. Lastly, we indicate other, emerging applications of GAP and provide a summary of its mechanical and energetic properties.

show abstract

Thermo-analytical study of 2,2,2-trinitroethyl-formate as a new oxidizer and its propellant based on a GAP matrix in comparison with ammonium dinitramide

Cited by 34 publications

References 31 publications

Improving the Mechanical Properties of Glycidyl Azide Polymeric Matrix Used in Composite Solid Rocket Propellant by Adding Advanced Cross‐Linker

Improving the Mechanical Properties of Glycidyl Azide Polymeric Matrix Used in Composite Solid Rocket Propellant by Adding Advanced Cross‐Linker

Investigation of a novel nanothermite colloid based on CuO coated CNTs on the thermo-analytical characteristics of 1,3,5-trinitro-1,3,5-triazinane

Glycidyl Azide Polymer and its Derivatives-Versatile Binders for Explosives and Pyrotechnics: Tutorial Review of Recent Progress

Contact Info

Product

Resources

About