Thermal behavior of nitrocellulose-based superthermites: effects of nano-Fe₂O₃ with three morphologies

Abstract

Superthermites with three Fe2O3 morphologies (rod-like, polyhedral, and olivary) were synthesized. The morphological effects of Al/Fe2O3 on the thermal decomposition property of nitrocellulose (NC) were investigated.

Compatibility and thermal decomposition mechanism of nitrocellulose/Cr2O3 nanoparticles studied using DSC and TG-FTIR

“…For solid propellants, the core of the propulsion technology is combustion performance. 1 The combustion performance refers to the burning rate and the pressure index. A propellant without a catalyst has a low burning rate, a highpressure index, and unstable combustion.…”

High Catalytic Activity of Nitrogen‐Doped Graphene on the Thermal Decomposition of CL‐20

“…The apparent activation energy (E a ) of the exothermic decomposition reaction is a vital parameter for evaluating the catalytic effect of a catalyst. The DSC curves at four different heating rates of 5.0, 7.5, 10, and 12.5 8C/min were obtained [29][30]. We calculated the activation energies of NGO/CL-20 corresponding to different reactive degree (a) by Ozawa method and the curves of E-a are shown in Figure 6.…”

“…We calculated the activation energies of NGO/CL-20 corresponding to different reactive degree (a) by Ozawa method and the curves of E-a are shown in Figure 6. Moreover, an integral iso-conversional non-linear (NL-INT) method was used to ensure the accuracy of the values of E [30]. The equations involved in the above calculations are as follow:…”

Effect of Bulk Density on the Combustion Property of Nitrocellulose with Isopropanol Humectant

“…Nitrocellulose (NC), known as a derivative of cellulose, is a carbohydrate polymer produced by the nitration of cellulose [1]. As the nitrogen content exceeds 12.5 %, NC tends to be spontaneous combustion if exposed in the air, and it is usually served as the major component of single-and double-base propellants, explosives and gas generators [1][2][3][4][5][6][7]. Moderately nitrated cellulose with nitrogen content less than 12.5 % is also flammable and explosive, though less violent, and it is used as the ingredient in coatings, lacquers and inks [8][9][10].…”

“…These data are necessary to quantify performance of energetic materials and their related compounds in their manufacture, handling, storage and usage [9,16]. Thus, in recent years, researches focusing on the thermal decomposition behaviors of pure NC have been comprehensively performed by virtue of DSC, DTA, TG and other calorimetric instruments [1][2][3][4][5][6][7][8][9]. However, the work concerning the combustion or fire properties of NC samples are still insufficient.…”