Investigation of the emissions from an acrylate and a carpet adhesive in humid and alkaline environments by the micro-scale headspace vial (MHV) method
2010 (English)In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 95, no 9, 1877-1882 p.Article in journal (Refereed) Published
In this study, emissions from a carpet adhesive and an acrylate dispersion in simulated humid and alkaline environments were investigated by the micro-scale head space vial (MHV) method. Relative humidity (RH) levels of 75%, 86% and 93% were tested in combination with pH values in the range 10-13. The polymeric materials were exposed at these conditions in sealed 20 mL headspace vials. Chemical analysis of the volatile emission products was performed by headspace solid-phase micro-extraction with subsequent gas chromatography mass spectrometry after three and 36 days. The effect of the RH and pH on the emissions was investigated. It was found that 2-ethyl-1-hexanol was one of the major volatile constituents, and that the emissions of this compound increased dramatically for pH > 12. This can be explained by alkali catalyzed hydrolysis of ester-linked 2-ethylhexyl groups. The other compounds that were detected after exposure of the adhesive were not as strongly dependant on pH and RH as 2-ethyl-1-hexanol. (C) 2010 Elsevier Ltd. All rights reserved.
Place, publisher, year, edition, pages
2010. Vol. 95, no 9, 1877-1882 p.
2-ethyl-1-hexanol, Emission, Degradation, Adhesive, VOC, HS-SPME
IdentifiersURN: urn:nbn:se:kth:diva-26804DOI: 10.1016/j.polymdegradstab.2010.04.016ISI: 000281369500057ScopusID: 2-s2.0-77955516485OAI: oai:DiVA.org:kth-26804DiVA: diva2:375842
QC 201012092010-12-092010-11-292010-12-09Bibliographically approved