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Pyrolysis of glass-hardened polyamides used in the automotive industry

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Abstract

Thermogravimetry and on-line flash pyrolysis–gas chromatography–mass spectrometry were used for studying thermal decomposition processes in filled polyamides deriving from used cars. The thermal decomposition of each polymer begins at about 350 °C and proceeds with a weight loss of 100% for the non-glass fibres, under nitrogen atmosphere. The analysis of the pyrolyzate compounds shows that from polyamide 66, the most abundant product volatile at degradation temperatures is cyclopentanone, while from polyamide 6 there is a considerable yield of ε-caprolactam.

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Authors and Affiliations

  1. Istituto Chimico, Facolta di Ingegneria, Universita di Catania, Viale A. Doria 6, 95125, Catania, Italia

    G. DI Pasquale

  2. Fiat Auto S.p.A., DAPI, Laboratori Centrali Plastici, Torino, Italia

    A. D. LA Rosa

  3. Istituto dell'Ambiente, Unita Acqua, Suolo, Rifiuti, Direzione Generale XII-CCR, Ispra, Italia

    A Recca

Authors
  1. G. DI Pasquale
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  2. A. D. LA Rosa
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  3. A Recca
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  4. S. Di Carlo
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  5. M. R Bassani
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  6. S Facchetti
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Pasquale, G.D., Rosa, A.D.L., Recca, A. et al. Pyrolysis of glass-hardened polyamides used in the automotive industry. Journal of Materials Science 32, 3021–3024 (1997). https://doi.org/10.1023/A:1018613709545

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  • DOI: https://doi.org/10.1023/A:1018613709545

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