DSC measurement and prediction of phase diagrams for binary mixtures of energetic materials’ stabilizers

Khimeche, Kamel; Benelmir, Riad; Dahmani, Abdallah

doi:10.1016/j.tca.2013.04.021

Cited by 36 publications

(20 citation statements)

References 40 publications

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“…In this context, within the last ten years, several studies have been carried out by our research group with conclusive and interesting results [3,[10][11][12].…”

Section: Introductionmentioning

confidence: 86%

“…The procedure for DSC measurements is similar to those implemented in our research group for analogous mixtures [3,10,11]. It guarantees the quality and precision of the data as different heating and cooling rates, or isothermal periods, resulted in similar thermograms, without the appearance of unexpected thermal phenomena.…”

Section: Apparatus and Proceduresmentioning

confidence: 99%

“…The NRTL equation contains three parameters, but the reduction of experimental data for a large number of binary systems indicates that the non-randomness parameter α 12 varies from about 0.20 to 0.47. A typical choice is = α 0.3 12 [3,11,37], here adapted. Furthermore, the pure component structural parameters r (volume parameter) and q (surface parameter) in the UNIQUAC equations were calculated according to the procedure suggested by Hofman and Nagata [42].…”

Section: Application Of Semi-empirical Modelsmentioning

confidence: 99%

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Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

et al. 2018

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A B S T R A C TSolid-liquid equilibria (SLE) data for two binary organic mixtures of N-(2-methoxyethyl)-p-nitroaniline + Nethyl-4-nitroaniline (S1) and N-(2-ethanol)-p-nitroaniline + N-ethyl-4-nitroaniline (S2) have been measured using differential scanning calorimeter to build the corresponding solid-liquid phase diagrams. The quality of the SLE data has been checked by consistency tests, presenting good quality factors for both systems. Simple eutectic behavior has been observed for these systems with the presence of a solid-solid transition for S2. The SLE data have been correlated by means of Wilson, NRTL, and UNIQUAC equations. The used models calculate the equilibrium temperatures very satisfactorily. The best modeling results were obtained using the Wilson equation with a root mean square deviation between experimental and calculated values for S1 and S2 of 1.15 and 1.99, respectively. The Wilson, NRTL, and UNIQUAC equations have also been used to compute excess thermodynamic functions viz. excess Gibbs energy, enthalpy, and entropy. The obtained results demonstrated a moderate positive deviation to ideality for S1, and a strong positive deviation for S2, unveiling the nature of the interactions between the compounds forming each mixture. In addition, microstructural studies have been carried out by FTIR, XRD and optical microscopy. Weak molecular interactions have been shown for the eutectic compositions. Jackson's roughness parameter was calculated and found to be greater than 2, suggesting the faceted morphology with irregular structures.

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“…In this context, within the last ten years, several studies have been carried out by our research group with conclusive and interesting results [3,[10][11][12].…”

Section: Introductionmentioning

confidence: 86%

Section: Apparatus and Proceduresmentioning

confidence: 99%

Section: Application Of Semi-empirical Modelsmentioning

confidence: 99%

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Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

et al. 2018

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“…Excellent research works all over the world have focused on the synthesis of new aniline-based stabilizers [14,15], the understanding of the interactions occurred between them [16][17][18], and the evaluation of the stability and performance of related energetic formulations [2,7,8,13,14], but without sufficiently addressing an exhaustive investigation about the compatibility issues for such combinations. Consequently, a number of stabilizers did not satisfy the development of nitrate-ester based energetic materials.…”

Section: Introductionmentioning

confidence: 99%

New Insights on the Compatibility of Nitrocellulose with Aniline‐Based Compounds

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et al. 2019

Propellants Explo Pyrotec

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In this paper, the compatibility of nitrocellulose (NC) with some aniline‐based stabilizers was studied in order to detect any interaction between these materials. Both thermal techniques [differential scanning calorimetry (DSC) and vacuum stability test (VST)], and supplementary non‐thermal techniques [Fourier transform infrared spectroscopy (FTIR), X‐ray diffraction (XRD) and densimetry] were used. The thermal and non‐thermal measurements showed that NC was highly compatible with N‐(2‐methoxyethyl)‐p‐nitroaniline (MENA) and diphenylamine (DPA), while a degree of incompatibility is indicated for N‐(2‐acetoxymethyl)‐p‐nitroaniline (ANA). The compatibility of the different mixtures was further probed by the kinetic investigation, and the activation energy and the pre‐exponential factors were computed. A detailed discussion and comparison of the compatibility results from all the methods are made.

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“…And this is an important data for the process of modification or formulation of a pharmaceutical ingredient. Recently, the various phase changes of binary mixtures of materials can rapidly be characterized by differential scanning calorimetry method [2].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Thermomicroscopy Study of Atorvastatin Calcium-Succinic Acid Binary Mixtures

et al. 2017

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DSC measurement and prediction of phase diagrams for binary mixtures of energetic materials’ stabilizers

Cited by 36 publications

References 40 publications

Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

Solid + liquid equilibria and molecular structure studies of binary mixtures for nitrate ester’s stabilizers: Measurement and modeling

New Insights on the Compatibility of Nitrocellulose with Aniline‐Based Compounds

Thermodynamic and Thermomicroscopy Study of Atorvastatin Calcium-Succinic Acid Binary Mixtures

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