Effects of nitrogen content on pyrolysis behavior of nitrocellulose

Chai, Hua; Duan, Qiangling; Cao, Huiqi; Li, Mi; Sun, Jinhua

doi:10.1016/j.fuel.2019.116853

Cited by 67 publications

(23 citation statements)

References 42 publications

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“…24,25 However, its poor chemical stability, high impact sensitivity, and spontaneous combustion properties have restricted its storage and practical use, which are also the main causes of many fatal accidents. 26,27 Therefore, to effectively address the above issues, physical modification and surface chemical functionalization of native cellulose have been proposed over the last few years to develop new high-energy cellulosic polymers with inherent performances. 28,29 Based on the downscaling approach, it was proved that the substitution of pristine cellulose with its micro-or nanosized derivatives is beneficial for producing an energetic nitrate ester cellulosic material with better features than the traditional nitrocellulose.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Thermal Decomposition Kinetics of Nitrogen-Rich Energetic Biopolymers from Aminated Giant Reed Cellulosic Fibers

Tarchoun

Trache

Klapötke

et al. 2020

Ind. Eng. Chem. Res.

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This research focuses on the exploration of giant reed (Arundo donax L., AD) as a viable and underutilized sustainable resource for the development of energetic nitrogenrich dense biopolymers based on surface amino functionalization and nitration of extracted native cellulose and cellulose microcrystals (ANCN and ACMCN). Their physicochemical features, molecular structure, crystallinity, and thermal behavior were examined and compared to those of native cellulose and cellulose microcrystals nitrates (NCN and CMCN) produced from the same bioresource. The obtained results demonstrated that these newly manufactured nitrogen-rich cellulosic materials present excellent energetic performance and reduced mechanical sensitivities with respect to those of the traditional NCN and emergent CMCN. Furthermore, the nonisothermal decomposition kinetics studied using isoconversional integral approaches revealed that the developed ANCN and ACMCN displayed good thermal stability with an autocatalytic decomposition mechanism and slightly lower Arrhenius parameters than the common NCN. Therefore, this study provides an efficient process to develop new promising insensitive and nitrogen-rich energetic macromolecules from valuable alternative AD feedstock for potential applications in solid propellant formulations.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Thermal Decomposition Kinetics of Nitrogen-Rich Energetic Biopolymers from Aminated Giant Reed Cellulosic Fibers

Tarchoun

Trache

Klapötke

et al. 2020

Ind. Eng. Chem. Res.

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“…The main observation is that the obtained heat flow curves present a single prominent exothermic peak, which shifted to higher temperatures with the increase of the heating rates because of the insufficient time for a regular distribution of temperature around the samples and hence delaying the beginning of the thermolysis process. Moreover, the high amount of energetic N 3 groups of AEGMCC compared to native AEGC is responsible for its lower exothermic decomposition and higher enthalpy of decomposition (ΔH), since several researchers have indicated that the increased nitrogen content of cellulosic sample could significantly elevate its sensitivity against thermal stimuli and improve the volume of released gaseous produced by its combustion [72,77,78]. These findings suggest that the explored alfa fibres could be considered as a prominent alternative feedstock for the synthesis of promising azidodeoxy cellulosic biopolymers with better thermal stability than the conventional nitrocellulose and emergent nanostructured cellulose nitrates prepared from the same biomass and other cellulosic resources [16,22,79].…”

Section: Thermal Characteristicsmentioning

confidence: 99%

Valorization of Esparto Grass Cellulosic Derivatives for the Development of Promising Energetic Azidodeoxy Biopolymers: Synthesis, Characterization and Isoconversional Thermal Kinetic Analysis

Tarchoun

Klapötke

Slimani

et al. 2022

Propellants Explo Pyrotec

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In the frame of developing new high-energy materials from bioresources, emergent cellulose and microcrystalline cellulose functionalized with explosophoric azides were successfully synthesized from a prominent alternative esparto grass fibres. The designed insensitive nitrogen-rich cellulosic biopolymers, namely, azidodeoxy esparto grass cellulose (AEGC) and azidodeoxy esparto grass microcrystalline cellulose (AEGMCC), displayed outstanding features, such as nitrogen content (w/w) of 18.24-18.68 %, the density of 1.601-1.626 g/cm 3 , and thermal decomposition of 203-218 °C. Their kinetic triplet was also determined under non-isothermal DSC conditions employing isonversional integral approaches. Interestingly, the appa-rent activation energy and the decimal logarithm of a preexponential factor of the developed AEGC and AEGMCC were found to be better than those of the common nitrocellulose. In addition, the reaction model examination based on Trache-Abdelaziz-Siwani (TAS) approach revealed that the produced AEGC and AEGMCC were accurately presented by an autocatalytic Avrami-Erofeev decomposition process. These results established that esparto grass fibres could be considered as a valuable alternative feedstock for the synthesis of outstanding energetic cellulose-rich polymers for potential applications in solid propellant formulations.

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“…Although the thermal decomposition of nitrocellulose, has been comprehensively examined, the effects of nitrogen content on the pyrolysis behavior have not been clearly elucidated. The macro- and micro-structures of nitrocellulose samples with varying nitrogen contents were qualitatively and quantitatively analyzed by Chai et al The pyrolytic behavior was examined using EGA-FTIR-MS coupled analysis [ 284 ].…”

Section: Applications To Explosives and Propellantsmentioning

confidence: 99%

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

et al. 2022

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Advances in on-line thermally induced evolved gas analysis (OLTI-EGA) have been systematically reported by our group to update their applications in several different fields and to provide useful starting references. The importance of an accurate interpretation of the thermally-induced reaction mechanism which involves the formation of gaseous species is necessary to obtain the characterization of the evolved products. In this review, applications of Evolved Gas Analysis (EGA) performed by on-line coupling heating devices to mass spectrometry (EGA-MS), are reported. Reported references clearly demonstrate that the characterization of the nature of volatile products released by a substance subjected to a controlled temperature program allows us to prove a supposed reaction or composition, either under isothermal or under heating conditions. Selected 2019, 2020, and 2021 references are collected and briefly described in this review.

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Effects of nitrogen content on pyrolysis behavior of nitrocellulose

Cited by 67 publications

References 42 publications

Synthesis, Characterization, and Thermal Decomposition Kinetics of Nitrogen-Rich Energetic Biopolymers from Aminated Giant Reed Cellulosic Fibers

Synthesis, Characterization, and Thermal Decomposition Kinetics of Nitrogen-Rich Energetic Biopolymers from Aminated Giant Reed Cellulosic Fibers

Valorization of Esparto Grass Cellulosic Derivatives for the Development of Promising Energetic Azidodeoxy Biopolymers: Synthesis, Characterization and Isoconversional Thermal Kinetic Analysis

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

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