Castagnoli, Emmanuelle; Backlund, Peter; Talvitie, Oskari; Tuomi, Tapani; Valtanen, Arja; Mikkola, Raimo; Hovi, Hanna; Leino, Katri; Kurnitski, Jarek; Salonen, Heidi published the artcile< Emissions of DEHP-free PVC flooring>, Electric Literature of 104-76-7, the main research area is PVC C9 alc volatile organic compound indoor air pollution; 2-ethylhexanol; C9-alcohol; PVC; TVOC; flooring; phthalates.
Degrading 2-ethylhexyl-containing PVC floorings (eg DEHP-PVC floorings) and adhesives emit 2-ethylhexanol (2-EH) in the indoor air. The danger of flooring degradation comes from exposing occupants to harmful phthalates plasticisers (eg DEHP), but not from 2-EH as such. Since the EU banned the use of phthalates in sensitive applications, the market is shifting to use DEHP-free and alternative types of plasticisers in PVC products. However, data on emissions from DEHP-free PVC floorings are scarce. This study aimed at assessing the surface and bulk emissions of two DEHP-free PVC floorings over three years. The floorings were glued on the screed layer of concrete casts at 75%, 85%, and 95% RH. The volatile organic compounds (VOCs) were actively sampled using FLEC (surface emissions) and micro-chamber/thermal extractor (μ-CTE, bulk emissions) onto Tenax TA adsorbents and analyzed with TD-GC-MS. 2-EH, C9-alcs., and total volatile organic compound (TVOC) emissions are reported. Emissions at 75% and 85% RH were similar. As expected, the highest emissions occurred at 95% RH. 2-EH emissions originated from the adhesive. Because the two DEHP-free floorings tested emitted C9-alcs. at all tested RH, it makes the detection of flooring degradation harder, particularly if the adhesive used does not emit 2-EH.
Indoor Air published new progress about Alcohols, C9 Role: POL (Pollutant), OCCU (Occurrence). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Electric Literature of 104-76-7.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts