Science and Technology of Energetic Materials

Vol.63, No.5 (2002)

Research paper

A study on thermal stability of nitrocellulose
Yasukazu Kumita, Yuji Wada, Mitsuru Arai, and Masamitsu Tamura


As a fundamental study for spontaneous ignition of niric esters, thermal degradation process of nitrocellulose (abbreviated as NC, hereafter) and eddect of stabilizer were examined.
   The results of FTIR analysis of NC and that after having been heated suggested that hydroxyl, hydroperoxide, and carbonyl groups generated, similar to the thermal degradation of usual polymers. And total calorific value of decomposition reaction decreased, according to the results of SC - DSC (Sealed Cell - Differential Scanning Calorimetry). The results also suggested that decomposition temperature became lower, so NC had turned to be a thermally unstable substance.
   On the other hand, a little amount of diphenylamine (abbreviated as DPA, hereafter) added as a stabilizer reduced these changes.

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