Exploration of High Precision Calculation Method for Critical Temperature of Thermal Reaction

Abstract:

In order to obtain the critical temperatures of energetic materials thermal reaction in different scales, a multi-scale thermal reaction test system has been developed. In this experiment, the measurement method of thermal diffusivity of energetic materials under test conditions is added. Based on the measured thermal diffusivity in thermal reaction test, activation energy and pre exponential factor measured in laboratory. The critical temperatures of thermal reaction in different scales of DINA are calculated, the calculation results are verified by two different scale thermal reaction tests, and the test results are in good agreement with the calculation results. According to the above calculation method, the critical temperature of thermal reaction of DINA under actual process conditions is obtained; it provides the basis of safety data for enterprise safety production.

• Periodical: Key Engineering Materials (Volume 881)
• Pages: 65-70
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.881.65
• Online since: April 2021
• Authors: Peng Gang Jin*, Jian Yang, Song Tao Ren, Hong Tao Xu, Yan Long Zhu
• Keywords: Size Effect, Thermal Diffusion Coefficient, Thermal Reaction

References

[1] Gu Zongju and Yao tuanli. Determination of purity reference materials of DINA, ordnance standardization, (1997), 3:1-3.

[2] Ma Yuying. Effect of nitrated diethanolamine on properties of double base propellant, energetic materials, (1995), 2:31-36.

[3] Zheng Chaomin, Wang Qiong, Ding Li, et al. Test method for evaluating thermal safety of propellant charge by thermal reaction critical temperature, energetic materials,(2015),23(6): 548-552.

[4] Wang Pei, Qin Chengsen. Calculation of thermal reaction critical parameters of cylindrical energetic materials, explosion and shock, (2003), 23 (2): 157-162.

[5] Zhang Yakun, Zhi Xiaoqi, Li Qiang, et al. Study on the influence of baking temperature on the critical temperature of thermal initiation of condensed energetic materials, Journal of projectile and guidance, (2014), 34 (1): 69-72.

[6] Zhou Peng. Study on thermal risk of Gina synthesis process. Jiangsu: Nanjing University of science and technology, (2019).

[7] Zhou Lin, Gao Zak, G.D. study on spin detonation characteristics of TNT Gina and dienti Taiji systems. Acta ordnance, (2003),24 (2): 167-171.

[8] Gao Fulei, Ji Yueping, Liu Weixiao, et al. Improved synthesis of 1, 5-diazo-3-nitroazapentane. Chemical propellants and polymer materials, (2014),12 (6): 79-80,92.

[9] Zhang Chao, Zhang Xiaohong, Ma Liang, et al. New research progress of LLM-105. Science and technology and Cheng, (2015),15 (23): 75-86.