Researches on thermal decomposition kinetics of composite modified double-base propellants

Zhan Tang*, Yan Ren, Li Yang, Tonglai Zhang, Xiaojing Qiao, Jianguo Zhang, Zunning Zhou, Fengqi Zhao, Yongzhan Dang, Siyu Xu, Jianhua Yi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The thermal decomposition kinetics of composite modified double-base (CMDB) propellants with a series of contents of hexogeon (RDX) was investigated by using parameters of Teo, Ti, Tp, Tf, Tb, Ta, E, lg A and ΔH, which were obtained from using a CDR-4P differential scanning calorimeter (DSC) and Perkin-Elmer Pyris 1 thermogravimetric analyzer (TG) analyses with heating rates of 5, 10, 15 and 20 K/min. Reliable activation energy was calculated using Flynn-Wall-Ozawa method before analyzing the thermal decomposition mechanism. TG-DTG curves were treated with Malek method in order to obtain the reaction mechanisms. The obtained results show that the thermal decomposition mechanisms with the conversion from 0.2 to 0.4 was f(α) 1/2α, and with the conversion from 0.5 to 0.7 was f(α)=(1/4)(1-α)[-ln(1-α)]-3.

Original languageEnglish
Pages (from-to)411-414
Number of pages4
JournalChinese Journal of Chemistry
Volume29
Issue number3
DOIs
Publication statusPublished - Mar 2011

Keywords

  • DSC
  • Decomposition machenism
  • Malek method
  • TG
  • Thermal stability

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