Article (Scientific journals)
Lignin degradation and stability: Volatile Organic Compounds (VOCs) analysis throughout processing
Sallem-Idrissi, Naïma; Vanderghem, Caroline; Pacary, Tiphanie et al.
2016In Polymer Degradation and Stability, 130, p. 30-37
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Keywords :
Emissions; Extrusion; Injection; Lignin; Processing; Volatile organic compounds
Abstract :
[en] This work investigates the Volatile Organic Compounds (VOCs) emissions during the processing of composite of polyamide 6 (PA) bio-filled with technical lignin. This is of prime interest as volatile phenolic structural monomers issued from lignin could penetrate the human organism and cause undesirable health damages. A special attention is given to the measurement of formaldehyde as it is known to be a human carcinogen. Lignin main identified emission consists of a high level of formaldehyde and a large amount of complex substituted phenol and benzene, all representative and constitutive of its structure. Regarding the PA alone, it has been found that the predominant VOC product is ϵ-caprolactam. When filling PA6 with lignin, the emitted VOCs associated to this filler are mainly produced during the extrusion while, only traces are detected during the injection process. Formaldehyde emission level is three times higher during the injection than during the extrusion. Phenols and some remaining reactants used during industrial cellulosic extraction process are identified. Regarding the value of the Short-Term Exposure Limit (STEL), suitable industrial process, safety and hygiene rules must be adopted. © 2016 Elsevier Ltd. All rights reserved.
Disciplines :
Chemistry
Author, co-author :
Sallem-Idrissi, Naïma;  Bio-and Soft Matter (BSMA), Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain (UCL), Box L7.04.02, Croix du Sud 1, Louvain-la-Neuve, Belgium
Vanderghem, Caroline;  Unit of Biological and Industrial Chemistry, Gembloux Agro-Bio Tech, University of Liege, Passage des Déportés, 2, Gembloux, Belgium
Pacary, Tiphanie;  Centre de Ressources Technologiques en Chimie (CERTECH), Rue Jules Bordet, Seneffe, Belgium
Richel, Aurore  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie biologique industrielle
Debecker, Damien P.;  Molecules, Solids and Reactivity (MOST), Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain (UCL), Box L7.05.17, Croix du Sud 2, Louvain-la-Neuve, Belgium
Devaux, Jacques;  Bio-and Soft Matter (BSMA), Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain (UCL), Box L7.04.02, Croix du Sud 1, Louvain-la-Neuve, Belgium
Sclavons, Michel;  Bio-and Soft Matter (BSMA), Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain (UCL), Box L7.04.02, Croix du Sud 1, Louvain-la-Neuve, Belgium
Language :
English
Title :
Lignin degradation and stability: Volatile Organic Compounds (VOCs) analysis throughout processing
Publication date :
2016
Journal title :
Polymer Degradation and Stability
ISSN :
0141-3910
eISSN :
1873-2321
Publisher :
Elsevier Ltd
Volume :
130
Pages :
30-37
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 06 July 2016

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