Mechanical Properties of HTPE/Bu-NENA Binder and the Kinetics of Bu-NENA Evaporation

Yuan, Songmei; Luo, Yunjun

doi:10.22211/cejem/119352

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…In search of a replacement for nitrate ester plasticizers, a series of different concepts have been investigated. ,− Among the most promising families of substances are molecules with a 2-nitroxyethyl nitramine functionality, commonly named NENA. − A series of NENAs with different alkyl chains have been elucidated and is commercially available. By choosing the length of the alkyl chain, properties such as heat of formation, sensitivity, or melting point can be adjusted.…”

Section: Introductionmentioning

confidence: 99%

“…Bu-NENA and MEN-42 show excellent plasticizing capabilities for NC and polymers such as glycidyl azide polymer (GAP), polyesters, or polyethers. In contrast to nitrate esters, they are less toxic and slightly less sensitive to shock and friction while providing improved mechanical properties and comparable performance. ,, A prominent example of commercial use of NENAs lies in the development of smoke-free, high-performance rocket propellants based on nitramines incorporated in GAP . By utilizing Bu-NENA or MEN-42, the low-temperature properties of the GAP binder could be greatly improved while obtaining promising safety and performance characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Properties of Energetic Plasticizers: Experimental Vapor Pressures of Methyl-, Ethyl-, and Butyl-Nitroxyethyl Nitramines

et al. 2021

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In this work, experimental vapor pressures of the commonly used energetic plasticizers methyl-NENA, ethyl-NENA, and butyl-NENA were measured for the first time with a transpiration method. The p−T fitting equations and the corresponding molar enthalpies of phase transitions at 298.15 K are reported: the molar enthalpies of sublimation and vaporization of methyl-NENA were measured to be 104.5 ± 0.9 and 82.0 ± 1.1 kJ•mol −1 , respectively. The consistency of these results was examined by the differential scanning calorimetry experiment, which yielded the molar enthalpy of fusion at 298.15 K to be 23.8 ± 0.3 kJ•mol −1 . The molar enthalpies of vaporization at 298.15 K for ethyl-and butyl-NENAs were derived to be 79.8 ± 0.4 and 85.9 ± 0.5 kJ•mol −1 , respectively. The p−T fitting equations were extrapolated at 298.15 K, and the corresponding results were reported in this work.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermodynamic Properties of Energetic Plasticizers: Experimental Vapor Pressures of Methyl-, Ethyl-, and Butyl-Nitroxyethyl Nitramines

et al. 2021

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Interpretable machine learning‐assisted strategy for predicting the mechanical properties of hydroxyl‐terminated polyether binders

Han,

Fu,

Guo

2024

Journal of Polymer Science

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Hydroxy‐terminated polyether (HTPE) binders are attractive in the weapons materials and equipment industry for their insensitive properties and flexibility. We propose an interpretable machine learning‐assisted modeling strategy to predict the mechanical properties of HTPE binders for the first time using machine learning methods. In this strategy, the effects of formulation composition, multiscale characterization, preparation conditions, and mechanical experimental conditions are evaluated on the mechanical properties of HTPE binders. As part of the study, three different techniques were used to predict material properties: bag‐based methods (Extra Random Tree, Random Forest), boosting‐based methods (XGBoost, CatBoost, and Gradient Boosted Regression), and Artificial Neural Networks (MLPs), all of which were highly accurate in predicting material properties. Based on this, SHAP analysis is used to explain how these influencing factors influence the material properties. An efficient method for examining HTPE binders formulations is provided by this strategy.

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A simple and efficient nitrating agent to achieve N-n-butyl-N-(2-nitroxyethyl) nitramine (Bu-NENA) and theoretical study of its compatibility with polyglycidyl nitrate (PGN) and glycidyl azide polymer (GAP)

Bayat,

Esmailmarandi,

Azizkhani

2024

Polym. Bull.

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Mechanical Properties of HTPE/Bu-NENA Binder and the Kinetics of Bu-NENA Evaporation

Abstract: Article is available under the Creative Commons Attribution-Noncommercial-NoDerivs 3.0 license CC BY-NC-ND 3.0.

Cited by 4 publications

References 16 publications

Thermodynamic Properties of Energetic Plasticizers: Experimental Vapor Pressures of Methyl-, Ethyl-, and Butyl-Nitroxyethyl Nitramines

Thermodynamic Properties of Energetic Plasticizers: Experimental Vapor Pressures of Methyl-, Ethyl-, and Butyl-Nitroxyethyl Nitramines

Interpretable machine learning‐assisted strategy for predicting the mechanical properties of hydroxyl‐terminated polyether binders

A simple and efficient nitrating agent to achieve N-n-butyl-N-(2-nitroxyethyl) nitramine (Bu-NENA) and theoretical study of its compatibility with polyglycidyl nitrate (PGN) and glycidyl azide polymer (GAP)

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