THE PREPARATION AND CHARACTERIZATION OF THE RED FLAME PYROTECHNIC USED IN SIGNAL MINES
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Tóm tắt
This paper presents the influence of oxidizer/fuel ratios on several energetic characteristics (combustion heat, gaseous volume, burning rate) of the red flame pyrotechnic containing potassium perchlorate, magnesium, strontium carbonate, polyvinyl chloride, and novolac resin. Based on the received experimental data and theoretical results, the reasonable potassium perchlorate/magnesium ratio of 25/22 is determined. The pyrotechnic mixture has the combustion heat of 841 cal/g, the gaseous volume of 250 ml/g, the burning rate of 8,1 mm/s at a pressed density of 1.56 g/cm3, the color purity of 91%, the decomposition temperature of 525oC, and small friction sensitivity. The pyrotechnic mixture can be used for red stars in signal mines.
Từ khóa
Pyrotechnic, potassium perchlorate, magnesium, strontium carbonate
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Tài liệu tham khảo
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