Effect of Acid Concentration on Thermal Stability of nitrocellulose (NC) for Civil Use

The effect of acid concentration in nitrocellulose (NC) on thermal stability of NC for civil use was studied using differential scanning calorimeter (DSC). The thermal explosion temperature (Tb) and kinetic parameters of NC thermal decomposition were calculated using different methods based on the t...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2021-03, Vol.714 (2), p.22018
Main Authors: Wang, Qiong, Gu, Yan, Ren, Chunyan, Liu, Hongni, Su, Pengfei
Format: Article
Language:English
Subjects:
Acids
Activation energy
Cellulose esters
Cellulose nitrate
Critical temperature
Crucibles
Decomposition
High pressure
Mathematical analysis
Stainless steel
Stainless steels
Thermal decomposition
Thermal stability
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Summary:The effect of acid concentration in nitrocellulose (NC) on thermal stability of NC for civil use was studied using differential scanning calorimeter (DSC). The thermal explosion temperature (Tb) and kinetic parameters of NC thermal decomposition were calculated using different methods based on the thermal decomposition behaviors of NC in high pressure-gold plated stainless steel crucible at different heating rates. The results show that acid content in NC reduces the stability of NC remarkably, including reducing the characteristic decomposition temperature such as peak temperature (Tp), onset temperature (Tonset), initial temperature (T0) and critical temperature of thermal explosion (Tb). The big difference between NC with different acid content is that the relative quantity of activation energy and the change trend of activation energy. The most interesting thing is that NC with more acid content has the lower characteristic temperature but higher calculated activation energy.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/714/2/022018