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Odour perception - A rapid and easy method to detect early degradation of polymers
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Polymer Technology.
Psykologiska institutionen, Stockholms universitet.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Polymer Technology.
Psykologiska institutionen, Stockholms universitet.
2012 (English)In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 97, no 4, 481-487 p.Article in journal (Refereed) Published
Abstract [en]

Human perception of odour is presented as a tool to detect early degradation of polymeric materials. Polyamide 66 (PA66) was selected as model material and subjected to accelerated ageing through thermo-oxidation. After different degradation times, participants smelled at the headspace of jars with aged polymer and scaled their perceived odour intensity. In parallel, conventional analysis by GC-MS and tensile testing was performed to measure the volatile compounds released and accompanying changes in mechanical properties during degradation. Perceived odour intensity correlated with a significant deterioration in mechanical properties and the release profiles of eight degradation products. This relationship was detected at a very early stage of degradation before any significant changes could be observed in thermal and surface properties. Odour perception, thus, constitutes a rapid and convenient method to determine the quality of plastic materials.

Place, publisher, year, edition, pages
2012. Vol. 97, no 4, 481-487 p.
Keyword [en]
Odour perception, Degradation products, Polyamide 66, GC-MS, Mechanical properties
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-79518DOI: 10.1016/j.polymdegradstab.2012.01.026ISI: 000301911300002Scopus ID: 2-s2.0-84857626962OAI: oai:DiVA.org:kth-79518DiVA: diva2:495584
Note
QC 20120423Available from: 2012-02-09 Created: 2012-02-09 Last updated: 2017-12-07Bibliographically approved

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