Odour perception - A rapid and easy method to detect early degradation of polymers
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
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.
Odour perception, Degradation products, Polyamide 66, GC-MS, Mechanical properties
IdentifiersURN: urn:nbn:se:kth:diva-79518DOI: 10.1016/j.polymdegradstab.2012.01.026ISI: 000301911300002ScopusID: 2-s2.0-84857626962OAI: oai:DiVA.org:kth-79518DiVA: diva2:495584
QC 201204232012-02-092012-02-092012-04-23Bibliographically approved