The influence of some factors on the characteristics of metallized incendiary mixtures
257 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.85.2023.73-81Keywords:
Pyrogel; Polyisobutylene; Magnesium; Aluminum-magnesium alloy; The heat of combustion; Adhesion.Abstract
In this article, the influence of some factors on the characteristics of metallized incendiary mixtures (pyrogels) was studied. The pyrogel-type contains benzene, polyisobutylene, magnesium, aluminum-magnesium alloy, sodium nitrate, and different additives. It is shown that the molecular weight of polyisobutylene, the amount of aluminum-magnesium alloy, the particle size of metal combustibles, and the amount and type of polyester threads have different effects on the heat of combustion, flash point, burning rate, flame height, and adhesion to the material surface. The optimal pyrogel contains 38-40% thickened benzene - PIB with molecular weight 175000-225000, 25-27% aluminum-magnesium alloy with particle size ≤ 160µm, 10-12% magnesium powder with particle size ≤ 180µm, 15% sodium nitrate, 8% phenol-formaldehyde resin and 1.5% (over 100%) 3D polyester threads.
References
[1]. Ardashev A.N. “Flamethrower-incendiary weapon”. Illustrated reference book. M.: AST, Astrel – 288, (2001).
[2]. Louis F. Fieser, George C. Harris, E. B. Hershberg, Morley Morgana, Frederick C. Novello, Stearns T. Putnam, “Napalm”, Ind. Eng. Chem. Vol 38, № 8, pp. 768-773, (1946). DOI: https://doi.org/10.1021/ie50440a010
[3]. Benjamín Ruiz Loyola, “Smoke and Incendiary Weapons”, LOJ Phar & Cli Res 1(3). LOJPCR.MS.ID.000115, (2019). DOI: 10.32474/LOJPCR.2019.01.000115. DOI: https://doi.org/10.32474/LOJPCR.2019.01.000115
[4]. LI Shi, GUO Tao, LIU Xiao-feng, et al. “Research Progress of Composite Thermite.[J]”. Chinese Journal of Energetic Materials, 29(11):1115-1124, (2021). DOI:10.11943/CJEM2021108.
[5]. Abahussain, R. M. S., Jubeiri, A. A. A., Alruwaili, A. S. S., Al-Ghamdi, F. S. A., Alhamdi, M. S. G., Albalawi, A. A. S., Alanazi, R. M. H., Alhawiti, R. M. E., Aljohani, K. B. B. and Alquayr, S. M. A. “Dermatological Manifestations of Magnesium and Thermite Poisoning”, Journal of Pharmaceutical Research International, 33, 38A, pp. 157-161, (2021). doi: 10.9734/jpri/2021/v33i38A32070. DOI: https://doi.org/10.9734/jpri/2021/v33i38A32070
[6]. Tamer Elshenawy, Salah Soliman, Ahmed Hawass, “High density thermite mixture for shaped charge ordnance disposal”, Defence Technology, Vol 13, Issue 5, pp. 376-379, (2017), https://doi.org/10.1016/j.dt.2017.03.005. DOI: https://doi.org/10.1016/j.dt.2017.03.005
[7]. E.N. Nikulin, V.F. Russkov, I.A. Semenov. “Melee weapons”. Hand Grenade Launchers: Study Guide; Balt. state tech. un-t. – SPb, 139, (2007). (in Russian)
[8]. Patent US 3464869, CL 149-42, MKI C 06 D 1/10.
[9]. Patent France, cl. C 06 D 1397964.
[10]. Yuriev P.G., “Incendiary substances and means of their application”, Journal of the All-Russian Society. DI. Mendeleev No. 6, 648-655, (1968). (in Russian)
[11]. N. Ya. Harutyunyan, “Modern conventional means of destruction”, Yerevan, 72, (2001). (in Russian)
[12]. Ardashev A.H. “Incendiary and flamethrower weapons”. M.: Yauza, Eksmo, 704, (2009). (in Russian)
[13]. Melnikov V.E, “Modern pyrotechnics”, M. 480, (2014). (in Russian)
[14]. Pirospravka. Handbook of explosives, gunpowder and pyrotechnic compositions. Moscow, 310, (2012) (in Russian).
[15]. Patent RU2213720; (2002).
[16]. Shidlovsky A.A. “Fundamentals of pyrotechnics”. M., Engineering, 280, (1973).
[17]. V. A. Zavadsky; “Fundamentals of technology of pyrotechnic substances, gunpowder and mixed rocket solid propellants”, Al-Farabi Kazakh National University, (2016). (in Russian)
[18]. A.Ya.Korolchenko. “Fire and explosion hazard of substances and materials and means of extinguishing them”, reference book. Moscow (2004). (in Russian)
[19]. Nguyen Van Tinh, Tran Quang Pha. “Fundamentals of Pyrotechnics”, Academy of Science and Technology, Hanoi, (2009). (in Vietnamese)
[20]. Zemsky G. T. “Flammable properties of inorganic and organic materials: reference book” M.: VNIIPO, 970, (2016). (in Russian)
[21]. GOST 21261-91 Petroleum products. Method for determining the gross calorific value and calculating the net calorific value. (in Russian)
[22]. Abryutin A. A. et al. Thermal calculation of boilers. Normative method.
[23]. GOST 147-2013 Solid mineral fuel. Determination of the higher calorific value and calculation of the lower calorific value, (2013). (in Russian)
