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Thermal decomposition properties of guanidine nitrate and basic cupric nitrate

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Abstract

Characterized with a large gas production and low combustion temperature, the guanidine nitrate (GN) gas-generating agents are studied and applied widely. The determination factors of thermal decomposition properties of guanidine nitrate and basic cupric nitrate (GN/BCN) gas-generating agents for airbag application was investigated by the thermogravimetry–differential scanning calorimetry–mass spectrmetry–Fourier transform infrared spectroscopy (TG-DSC-MS-FTIR) and automatic calorimeter. Five different mass ratios were concerned. Our study showed that the onset reaction temperatures of GN/BCN mixtures were lower than that of individual GN and BCN. The thermal decomposition of GN/BCN mixtures could be divided into three stages, including the dissociation and escape of crystal water, solid (GN)-solid (BCN) phase reaction, and liquid (GN)-solid (BCN) phase reaction. When mass ratio of GN/BCN was 62.24/37.73, the largest value of the reaction heat was measured to 3152.7 J g−1, with N2 and H2O as the major gases during thermal decomposition.

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Authors and Affiliations

  1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People’s Republic of China

    Xinliang Mei, Yi Cheng, Yanchun Li, Xuqiang Zhu, Shi Yan & Xiangyu Li

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  1. Xinliang Mei
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  2. Yi Cheng
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  3. Yanchun Li
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  4. Xuqiang Zhu
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  5. Shi Yan
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  6. Xiangyu Li
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Correspondence to Yi Cheng.

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Mei, X., Cheng, Y., Li, Y. et al. Thermal decomposition properties of guanidine nitrate and basic cupric nitrate. J Therm Anal Calorim 114, 131–135 (2013). https://doi.org/10.1007/s10973-012-2851-z

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  • DOI: https://doi.org/10.1007/s10973-012-2851-z

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