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Erschienen in: Cellulose 15/2021

04.09.2021 | Original Research

Comparative analysis of stable decomposition and combustion kinetics of nitrated cellulose

verfasst von: Ruichao Wei, Shenshi Huang, Jingwen Weng, Jian Wang, Chengming Wang

Erschienen in: Cellulose | Ausgabe 15/2021

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Abstract

Nitrated cellulose (NC) is highly susceptible to thermal runaway such as combustion or explosion during decomposition. Preventing and mitigating the related accidents require more comprehensive analysis of its thermal stability and chemical decomposition kinetics. To understand the effect of combustion on the decomposition mechanism of NC, it is necessary to compare the kinetics in stable decomposition and combustion. In this study, multiple kinetic analyses including model-free and master-plots approaches were used to determine the kinetic parameters and kinetic model of NC in these two cases. The average activation energy (E) was found to be lower in combustion than that in stable decomposition (89.5–97.5 vs. 123.3–145.8 kJ mol−1). The stable decomposition kinetics fits the sigmoidal model, while the combustion kinetics fits the deceleration model. From the compensation effect, the pre-exponential factor was calculated to be 19.0–67.2 ln s−1 for stable decomposition and 12.9–26.1 ln s−1 for combustion. This study provides a new perspective on the methods to determine the compensation effect and expands the research scenarios of thermochemical kinetics.

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Metadaten
Titel
Comparative analysis of stable decomposition and combustion kinetics of nitrated cellulose
verfasst von
Ruichao Wei
Shenshi Huang
Jingwen Weng
Jian Wang
Chengming Wang
Publikationsdatum
04.09.2021
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 15/2021
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-04162-5

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