Effect of aniline-fullerene-based stabilizer on thermal decomposition of nitrocellulose

Abstract

<p indent="0mm">The influence of aniline-fullerene-based stabilizer on the thermal decomposition behavior of nitrocellulose was studied by thermal analysis, isotherm thermogravimetric test, methyl purple paper test, adiabatic accelerated calorimetry and differential scanning calorimetry. The results of the differential thermal analysis showed that the critical temperature of the thermal explosion of nitrocellulose increased <sc>0.36–7.62 °C</sc> with the addition of aniline-fullerene-based stabilizer. The results of the isothermal thermogravimetric analysis are in good agreement with the conclusions of the methyl violet test paper. The results show that an aniline-fullerene-based stabilizer can effectively prolong the discoloration time of methyl violet test paper and the time required to achieve the same weight loss rate of nitrocellulose samples. The results of adiabatic accelerated calorimetry showed that although aniline-fullerene-based stabilizer had little effect on the pressure and temperature at the initial stage of adiabatic decomposition of nitrocellulose, it could effectively reduce the maximum temperature rise rate. The effects of thermal history on the thermal decomposition of nitrocellulose samples are investigated by DSC interruption and re-scanning method. The results showed that the aniline-fullerene-based stabilizer had obvious thermal stability effect on nitrocellulose and inhibited the autocatalytic decomposition of nitrocellulose.