Page 103 - 《含能之美》2019封面论文

二 苯 胺 对 硝 化 棉 的 等 温 热 分 解 动 力 学 的 影 响 997

tion of CL‑20 via a self‑modified dynamic vacuum stability test analysis kinetics［M］. Second ed. Beijing： Science Press，
［J］. Journal of Thermal Analysis and Calorimetry，2017，128 2008.
（3）：1833-1840. ［20］ 刘子如，邵颖惠，任晓宁，等 . 预估火炸药寿命的数学模型及其
［18］ LUO Li‑qiong，JIN Bo，XIAO Yi‑yi，et al. Study on the isother‑ 计算［J］. 火炸药学报，2016，39（2）：1-7.
mal decomposition kinetics and mechanism of nitrocellulose LIU Zi‑ru，SHAO Yin‑hui，REN Xiao‑ning，et al. Mathematical
［J］. Polymer Testing，2019，75：337-343. models and its calculations for predicting the life of explosives
［19］ 胡荣祖，高胜利，赵凤起，等 . 热分析动力学［M］. 第二版 . 北 and propellants［J］. Chinese Journal of Explosives and Propel⁃
京：科学出版社，2008. lants，2016，39（2）：1-7.
HU Rong‑zu，GAO Sheng‑li，ZHAO Feng‑qi，et al. Thermal

Effects of Diphenylamine on Isothermal Thermal Decomposition Kinetics of Nitrocellulose

LUO Li⁃qiong，CHAI Zuo⁃hu，JIN Bo，HUANG Qiong ，CHU Shi⁃jin，PENG Ru⁃fang
（State Key Laboratory of Environmental⁃friendly Energy Materials，Southwest University of Science and Technology，Mianyang 621010，China）
Abstract：The influence of diphenylamine（DPA）on the thermal stability of nitrocellulose（NC）was investigated by isothermal
decomposition kinetics. Pressure versus time curves of the gas generated by the thermal decomposition of NC/DPA（3%）mixed
sample at 378.15-398.15 K were obtained by using the isothermal decomposition gas metering device. There is a visible inflec‑
tion point in this curve. The thermal decomposition kinetic parameters of NC/DPA（3%）composite were calculated by Arrhenius
equation and model‑fitting method. The storage life of NC and NC/DPA composite was estimated using Berthelot equation. The
results show that the activation energy of NC/DPA（3%）before the inflection point is 164.6 kJ·mol ，and the activation energy
-1
of NC/DPA（3%）mixed sample after the inflection point is 150.4 kJ·mol . Compared with the NC raw material，the activation
-1
energy of NC/DPA（3%）before the inflection point is increased by 17.7 kJ·mol . With a decomposition extent of 0.1% as the
-1
criterion，the storage life of NC/DPA（3%）at room temperature is 18.3 years，indicating that the storage life of NC can be ex‑
tended by 7.7 years after the addition of 3%DPA.
Key words：nitrocellulose；diphenylamine；isothermal thermal decomposition；kinetics；storage life
CLC number：TJ55；O65 Document code：A DOI：10.11943/CJEM2019118

（责编：王艳秀）

CHINESE JOURNAL OF ENERGETIC MATERIALS 含能材料 2019 年 第 27 卷 第 12 期 （991-997）