Comparative Study of Linear Regression Models for the Infrared Reflection Spectroscopic Determination of Magnesium, Teflon, and Viton Pyrotechnic Compositions
DOI:
https://doi.org/10.1590/jatm.v18.1444Keywords:
Infrared spectroscopy, Pyrotechnic, Magnesium Teflon Viton, Regression analysisAbstract
The pyrotechnic composition of magnesium, Teflon, and Viton (MTV) is employed in solid rocket motor initiation systems, flares, and other applications. No studies addressing its quantification or evaluating statistical models have been reported in the consulted and available literature. Infrared spectroscopy enables the quantification of each component of a system in a fast and non-destructive manner. This study presents the application of the universal attenuated total reflection technique to the analysis of five laboratory-prepared samples with different MTV contents, in which the analytical bands of each component were used in calibration curves through different linear regression models. The test sample results demonstrate adequate agreement between the methodologies, with relative errors below 6.5% for the quantification of Viton and Teflon, with the estimation of Teflon being improved by the use of weighted linear regression. For magnesium, both the simple and weighted regression estimates fall outside the 95% confidence interval, indicating the presence of systematic error. The contribution to the state of the art lies in the evaluation of MTV (as-received samples) through infrared reflection techniques, using different statistical treatments, including those specifically designed for spectroscopic data.
References
Agrawal JP (2010) High energy materials: propellants, explosives and pyrotechnics. Weinheim: Wiley. https://doi.org/10.1002/9783527628803
Barros AH, Magalhães RF, Murakami LMS, Diniz MF, Sanches NB, Carvalho TA, Dutra JCN, Dutra RCL (2025) Determination of elastomer content in NR/SBR/BR blends. Polímeros 35(2):1-11. https://doi.org/10.1590/0104-1428.20240110
Barros L (2016) Qualificação de composições pirotécnicas usadas no sistema de ignição de motor foguete a propelente sólido (master’s thesis). São José dos Campos: Instituto Tecnológico de Aeronáutica. In Portuguese. http://www.bdita.bibl.ita.br/tesesdigitais/71821.pdf
Dozono PT (2003) Avaliação do desempenho de composições pirotécnicas para a ignição de propelentes sólidos (master’s thesis). São José dos Campos: Instituto Tecnológico de Aeronáutica. In Portuguese. http://www.bdita.bibl.ita.br/tesesdigitais/000499552.pdf
Draper NR, Smith H (1998) Applied regression analysis. 3rd ed. New York: Wiley. https://doi.org/10.1002/9781118625590
Dutra RCL, Lourenço VL, Diniz MF, Azevedo MFP, Barbosa RV, Soares BG (1996) Poly(ethylene-co-vinyl acetate-co-vinyl mercaptoacetate) (EVALSH): determination of the vinyl mercaptoacetate content by thermogravimetric analysis and FTIR spectroscopy. Polym Bull 36(5):593-600. https://doi.org/10.1007/BF00342451
Dutra RCL, Soares BG (1998) Determination of the vinyl mercaptoacetate content in poly(ethylene-co vinyl acetate-covinylmercaptoacetate) (EVASH) by TGA analysis and FTIR spectroscopy. Polym Bull 41(1):61-67. https://doi.org/10.1007/s002890050333
Farias SL, Costa LG, Calili RF, Rios RM, Oliveira EC (2015) Avaliação metrológica da curva analítica para determinação do teor de enxofre em baixíssimas concentrações em óleo diesel S10. Quím Nova 38(6):852-858. https://doi.org/10.5935/0100-4042.20150071
Gaunekar S, Ambekar A (2024) Effect of hygrothermal aging on the decomposition reactions of magnesium/Teflon/Viton (MTV) pyrotechnic. Propellants Explos Pyrotech 50(2):1-13. https://doi.org/10.1002/prep.202400162
Horák VM, Vítek A (1978) Interpretation and processing of vibrational spectra. New York: John Wiley and Sons.
Koch EC (2002) Metal-fluorocarbon-pyrolants: III. Development and application of magnesium/Teflon 850A®/Viton® (MTV). Propellants Explos Pyrotech 27(5):262-266. https://doi.org/10.1002/1521-4087(200211)27:5<262::AID-PREP262>3.0.CO;2-8
Koch EC (2012) Metal-fluorocarbon based energetic materials: chemistry of the violent reaction. Weinheim: Wiley-VCH. https://doi.org/10.1002/9783527644186
Mattos EC, Diniz MF, Nakamura NM, Dutra RCL (2009) Determination of polymer content in energetic materials by FT-IR. J Aerosp Technol Manag 1(2):167-175. Available at https://www.scielo.br/j/jatm/a/tXQZdrVyCMfNs3pNbzpsm6Q/?format=pdf&lang=en
Miller JN, Miller JC (2010) Statistics and chemometrics for analytical chemistry. 6th ed. Harlow: Pearson Education Limited.
Montgomery DC, Peck EA, Vining GG (2012) Introduction to linear regression analysis. 5th ed. Hoboken: John Wiley & Sons.
Palmerio AF (2017) Introdução à tecnologia de foguete. 2nd ed. São José dos Campos: SindCT.
Pires HB, Rocha RJ, Iha K, Binda RV, Rocco JAFF (2017) Influência do envelhecimento acelerado em flares magnésio/PTFE/FPM. Quím Nova 40(8):865-870. https://doi.org/10.21577/0100-4042.20170093
Smith AL (1979) Applied infrared spectroscopy. New York: John Wiley & Sons.
Thompson JM (2018) Infrared spectroscopy. New York: Jenny Stanford Publishing. https://doi.org/10.1201/9781351206037-4
Zahir MH, Rahman MM, Irshad K, Rahman MM (2019) Shape-stabilized phase change materials for solar energy storage: MgO and Mg(OH)₂ mixed with polyethylene glycol. Nanomaterials 9(12):1-21. https://doi.org/10.3390/nano9121773
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