THE PREPARATION AND CHARACTERIZATION OF THE RED FLAME COMPOSITION BASED ON STRONTIUM NITRATE, MAGNESIUM, AND POLYVINYL CHLORIDE

  • Quang Sang Dam Le Quy Don Technical University, Hanoi, Vietnam
  • Van Tuan Nguyen Le Quy Don Technical University, Hanoi, Vietnam
  • Trung Huu Hoang Le Quy Don Technical University, Hanoi, Vietnam
  • Van Bo Nguyen Institute of Tropical Durability, Russian - Vietnamese Tropical Center, Hanoi, Vietnam
Từ khóa: Pyrotechnic, strontium nitrate, magnesium, polyvinyl chloride

Tóm tắt

This paper presents the influence of oxidizer/fuel ratios on several energetic characteristics (the heat of combustion, gaseous volume, burning rate) of the red flame pyrotechnic containing strontium nitrate, magnesium, polyvinyl chloride, and novolac resin. Based on the received experimental data and theoretical calculation results, the reasonable strontium nitrate/magnesium ratio of 58/15 is determined. The pyrotechnic mixture has the heat of combustion of 921 cal/g, a gaseous volume of 260 ml/g, a burning rate of 2.02 mm/s at a pressed density of 1.60 g/cm3, a color purity of 89%, a decomposition temperature of 481.5oC, and less sensitive to friction and impact.

điểm /   đánh giá
Phát hành ngày
2022-06-10
In ra
Tập. 17 Số. 03 (2022)
Chuyên mục
BAI BAO KHOA HOC