Abstract
The effect of novel aniline-fullerene stabilizers on the decomposition of nitrocellulose (NC) was investigated using an isothermal analysis. In comparison with the activation energy of NC (144.7 kJ mol−1), the activation energy of S-1, S-2, and S-3 at the early stage increased to 152.8, 158.6, and 159.0 kJ mol−1, respectively. Remarkably, the effective storage times for the decomposition extent of S-1, S-2, and S-3 to reach a decomposition extent of 0.1% were 12.0, 30.5, and 20.9 years, respectively, which were longer than that of NC (10.6 years). In addition, the intermediate product produced by aniline-fullerene stabilizers and NC action was characterized, and the mechanism and interaction between the stabilizers and NC was revealed. The introduction of aniline-fullerene stabilizers can effectively obstruct further catalysis and accelerate the decomposition of NC by absorbing nitroxide free radical from the decomposition of NC. The results presented herein provide new insights into the stability and rational design of highly effective stabilizers.
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