Bis-oxadiazole Dinitrate Energetic Compound
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Solution Overview
Problem
The development of high-energy-density melt-castable explosives with excellent performance and reasonable sensitivity is challenging, as existing materials like TNT are toxic and environmentally problematic, while alternatives like DNAN have low density and detonation velocity.
Innovation Solution
The disclosure provides new embodiments of an energetic compound, specifically a bis-oxadiazole dinitrate, which is synthesized by exposing a bis-oxadiazole product to a nitrating agent, and can be used as a high-energy melt-castable explosive and energetic propellant plasticizer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional explosive materials like TNT are used, then high energy density is achieved, but toxicity and environmental harm increase
Solution Approach 1:
The patent changes the chemical structure parameters by introducing oxadiazole rings and nitrate ester groups instead of traditional nitroaromatic structures, achieving comparable or superior energy density while eliminating the toxic aromatic core and improving environmental compatibility
Solution Approach 2:
The invention creates a composite molecular structure combining oxadiazole heterocycles with nitrate ester functional groups, achieving a material that simultaneously provides high energy content through the nitrate esters and improved safety/environmental properties through the oxadiazole framework
2Object-generated harmful factors
If alternatives like DNAN are used, then reduced toxicity is achieved, but density and detonation velocity decrease
Solution Approach 1:
The patent optimizes molecular parameters including density (1.8-2.0 g/cm³) and oxygen balance by strategic placement of nitrate ester groups on the oxadiazole framework, achieving detonation velocities exceeding 8000 m/s while maintaining low toxicity
Solution Approach 2:
The invention applies local quality enhancement by concentrating high-energy nitrate ester groups at specific positions on the oxadiazole ring system, maximizing energy density and detonation performance in critical regions while maintaining overall molecular stability and low toxicity
3Use of energy by moving object
If high-energy-density materials are developed, then explosive performance is improved, but sensitivity to impact and friction increases
Solution Approach 1:
The patent modifies molecular parameters such as bond strength, ring stability, and steric hindrance through the oxadiazole structure, achieving high explosive performance while the rigid five-membered rings and strategic group placement reduce sensitivity to mechanical stimuli like impact and friction
Solution Approach 2:
The oxadiazole ring system acts as an intermediary structure that decouples the energy-containing nitrate ester groups from direct mechanical stress, providing a stable framework that protects the high-energy groups while allowing controlled energy release during detonation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The energetic compound exhibits high decomposition temperatures, explosive densities, and detonation velocities, while having lower sensitivities to impact, friction, and electrostatic discharge compared to conventional explosive materials, making it a safer and more effective alternative.
Implementation Method 1
exposing a bis-oxadiazole product to a nitrating agent to provide a bis-oxadiazole dinitrate
Implementation Method 2
heating the reaction mixture at a temperature above room temperature
Data Source
AI summary
Disclosed herein are embodiments of an energetic compound and methods of making and using the same. Energetic compound embodiments disclosed herein exhibit physical and chemical properties that facilitate their use in various applications, such as high energy propellant plasticizers, melt-castable explosives, and the like. Efficient and safe method embodiments for making the disclosed energetic compound embodiments are described herein.