Pyrolysis of glass-hardened polyamides used in the automotive industry |
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Authors: | G DI Pasquale A D LA Rosa A Recca S Di Carlo M R Bassani S Facchetti |
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Affiliation: | (1) Istituto Chimico, Facolta di Ingegneria, Universita di Catania, Viale A. Doria 6, 95125 Catania, Italia;(2) Fiat Auto S.p.A., DAPI, Laboratori Centrali Plastici, Torino, Italia;(3) Istituto dell'Ambiente, Unita Acqua, Suolo, Rifiuti, Direzione Generale XII-CCR, Ispra, Italia |
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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.
This revised version was published online in November 2006 with corrections to the Cover Date. |
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