Aplicação de metodologias FTIR de transmissão e fotoacústica à caracterização de materiais altamente energéticos: parte II

Química Nova

Elizabeth Da Costa Mattos²  Itamar Viganó²  Rita De Cássia Lazzarini Dutra¹  Milton Faria Diniz¹  Koshun Iha¹ 

[1] ,Divisão de Sistemas Bélicos Instituto de Aeronáutica e Espaço Centro Técnico AeroespacialSão José dos Campos SP

关键词: energetic materials;    FTIR-PAS;    HMX;   

DOI  :  10.1590/S0100-40422002000500003

来源: SciELO

【 摘 要 】

Materials obtained during the synthesis of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) were characterized by Fourier transform infrared (FTIR) transmission spectroscopy and/or Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS). By these techniques the spectrometric alterations that occurred during the process were observed. The characterized species during the synthesis of HMX were alpha-HMX, beta-HMX, hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and HMX/RDX mixtures. The FTIR-PAS was verified to be a promising technique of great usefulness of the characterization of highly energetic materials because it is fast, simple and requires no sample preparation unlike Fourier transform infrared transmission technique (KBr pellet). The FTIR-PAS analysis showed that with small sample quantity is possible to distinguish between thealpha-HMX and beta-HMX and to detect even in a qualitative way different HMX / RDX ratios.

【 授权许可】

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