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- Title
Effect of emulsifiers on the thermal stability of firework propellants.
- Authors
Wu, He; Jiang, Jun-Cheng; Huang, An-Chi; Tang, Yan; Liu, Ye-Cheng; Zhai, Juan; Shu, Chi-Min; Xing, Zhi-Xiang
- Abstract
Fireworks are composed of flammable and explosive materials, and during manufacture, transportation, and related processes, these materials are susceptible to static electricity, impact, friction, and explosion degradation, causing fire- and explosion-related accidents. Sorbitan monooleate (SPAN-80) is a widely used emulsifier in emulsion explosives. This study used differential scanning calorimetry and thermogravimetric analysis to characterise the propellant reaction kinetics in fireworks to explore the safety effects of emulsifiers on propellants. Additionally, the intensity of the thermal decomposition reaction of the propellant after the addition of the emulsifier was compared. Simulation models were used to simulate the thermal hazards of propellants and emulsified propellants. The results reveal that the emulsifier affected the decomposition process of the propellant, and the presence of the emulsifier reduced the sensitivity of the propellant. This paper also outlines the thermal hazard parameters of fireworks by using a thermokinetic model, which can serve as a reference for related research.
- Subjects
PROPELLANTS; EXPLOSIONS; THERMAL stability; EXPLOSIVES detection; FIREWORKS; STATIC electricity; DIFFERENTIAL scanning calorimetry; STABILIZING agents
- Publication
Journal of Thermal Analysis & Calorimetry, 2023, Vol 148, Issue 11, p4959
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-022-11473-7