Study of the radical products of the thermal decomposition of nitrocellulose

Combustion Catalyst: Nano‐Fe2O3 and Nano‐Thermite Al/ Fe2O3 with Different Shapes

“…Furthermore, the noticeable IR bands of NO 2 are found in the region of 1593-1635 cm -1 at the beginning of the decomposition of NC shown in the curve I i (Figure 10(a)) [46], which means that the NO 2 gas is an initial degradation product. The above results concur with those of several previous studies [22,23,47,48] in which the O-NO 2 bond is deemed to be the first step leading to the release of NO 2 2 2RO NO RO NO -® × + -…”

“…In order to obtain more information about NC, the thermal decomposition mechanism of NC has been investigated. It is shown that the fission of oxygen-nitrogen bond is the first and rate-determining step during the decomposition process [22][23][24][25]. Quantities of NO 2 gases, derived from the O-NO 2 bond cleavage, could stagnate in the polymer skeleton and lead to promote the secondary autocatalytic reactions (i.e., the heterogeneous reactions in condensed phase) [26].…”

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

“…Therefore, NO 2 was considered to be the initial degradation product; this meant that the breakage of the O-NO 2 bond was deemed to be the rst decomposition step as reported in previous studies. [28][29][30][31][32] When the temperature increased (T e , T p , T c ), the gaseous products such as NO (1762-1965 cm À1 ), CO (2150-2194 cm À1 ), N 2 O (2200-2300 cm À1 ), HCHO (2700-2900 cm À1 , 1720-1740 cm À1 ), and HCOOH (1080-1128 cm À1 ) were detected. 27,28 The peaks at 2852 cm À1 and 1769 cm À1 are attributed to the modes of the C-H and C]O stretching bands of HCHO, respectively, 28 which are generated by the -CH 2 ONO 2 group.…”