SciELO - Scientific Electronic Library Online

vol.28 número1Recovery of Terephthalic Acid by employing magnetic nanoparticles as a solid supportAnalysis of chemical polymerization between functionalized MWCNT and poly(furfuryl alcohol) composite índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados




Links relacionados



versão impressa ISSN 0104-1428versão On-line ISSN 1678-5169


FERREIRA, Ana Carolina; DINIZ, Milton Faria  e  MATTOS, Elizabeth da Costa. FT-IR methodology (transmission and UATR) to quantify automotive systems. Polímeros [online]. 2018, vol.28, n.1, pp.6-14.  Epub 15-Mar-2018. ISSN 1678-5169.

When using Fourier transform infrared spectroscopy (FT-IR) under the qualitative aspect for characterization of polymer blends, often a simple identification of each one of the existing polymers in the blend does not justify the material failure since different amounts of each component may result in different mechanical properties, which should be a possible cause for of material failure when applied to an automotive part. Thus, seeking for a better justification in the understanding of material failure analysis, a new quantitative FT-IR methodology was developed in the mid-infrared region (MIR), using the transmission techniques and universal attenuated reflectance for the determination of Acrylonitrile Butadiene Styrene (ABS) and polycarbonate (PC). Transmission mode was more suitable. The relative band (A831 /A2237) was chosen for the preparation of the calibration curve that showed a 0.99% error methodology, which is within the FT-IR spectrometer accuracy limit (≤ 2%); therefore, it is accurate for the analysis of the system.

Palavras-chave : automotive systems; MIR; polymer blends; quantification; transmission.

        · texto em Inglês     · Inglês ( pdf )