Thermodynamics Research Center / ThermoML | Thermochimica Acta

Organic eutectic mixture as efficient stabilizer for nitrocellulose: Kinetic modeling and stability assessment

Chelouche, S.[Salim], Trache, D.[Djalal], Tarchoun, A. F.[Ahmed Fouzi], Abdelaziz, A.[Amir], Khimeche, K.[Kamel], Mezroua, A.[Abderrahmane]
Thermochim. Acta 2019, 673, 78-91
ABSTRACT
The effect of organic eutectic mixture of diphenylamine (DPA) and N-(2-methoxyethyl)-p-nitroaniline (MENA) with respect to its pure components on the stability of nitrocellulose (NC) has been investigated by means of stability tests and kinetic modeling. The prepared mixtures have been analyzed by FTIR, XRD, and DSC. The obtained results showed that the eutectic composition does not reveal any compatibility issue with NC. The Bergmann-Junk and Vacuum Stability Test results demonstrated that all samples are stable. The NC stabilized by the eutectic mixture (DPA+MENA) displayed the best stabilizing effect compared to that stabilized by the pure components. Furthermore, kinetic modeling has been carried out by isoconversional analysis to determine the kinetic triplet. It was found that the NC stabilized by the eutectic mixture presents the highest average activation energy, what corroborating the stability tests results and justifying the potential of such eutectic composition as efficient NC stabilizer.
Compounds
# Formula Name
1 C9H12N2O3 N-(2-methoxyethyl)-4-nitroaniline
2 C12H11N diphenylamine
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 2
  • Eutectic temperature, K ; Crystal - 1
  • Crystal - 1
  • Crystal - 2
  • Liquid
  • Air at 1 atmosphere
  • DTA
  • 1
  • POMD
  • 1
  • 2
  • Eutectic composition: mole fraction - 1 ; Crystal - 1
  • Crystal - 1
  • Crystal - 2
  • Liquid
  • Air at 1 atmosphere
  • Derived from phase diagram analysis
  • 1