163923 20251113160752.0 doi 10.1016/j.resconrec.2020.105365 sideral 122485 ART-2021-122485 eng Su, Q.Z. Safety concerns of recycling postconsumer polyolefins for food contact uses: Regarding (semi-)volatile migrants untargetedly screened 2021 Plastic recycling is one of the important ways to mitigate plastic pollution. However, chemicals present in recycled plastics is one of the key qualities affecting their potential uses and deserves more attention. 475 migrants coming from 15 postconsumer recycled polyolefins were identified by direct immersion-solid-phase micro-extraction gas chromatography mass spectrometry (DI-SPME-GC-MS) and atmospheric pressure-gas chromatography-quadrupole-time of flight-mass spectrometry (APGC-QTOF-MS). About 60 % of them might not be of human risk because they were food additives/components or they are saturated hydrocarbons, fatty acyls, or prenol lipids. Most of them had molecular weight (MW) between 150 and 210 Da, though, high concern substances with high MW (e.g. octocrylene) implied that high MW surrogates are required to study the efficiency of recycling processes for polyolefins. The mean predicted octanol/water partition coefficient (XLogP) was about 6.5 and 3.5 for 95 % ethanol and 3 % acetic acid food simulants, respectively. Octocrylene, 1-tetradecene, 1-dodecene, dodecyl acrylate, 2, 4-di-tert-butylphenol, 1, 4-benzenedicarboxylic acid, diethyl ester, benzenamine, 2, 4-dichloro-, and diethyl phthalate were of high concern depending on the potential food contact use of the materials. The results presented are informative and can be of great help for recyclers and law makers to recycle polyolefins for safe food contact use. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA-FEDER/T53-20R info:eu-repo/grantAgreement/ES/MICINN/RTI2018-097805-B-I00 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 13.716 2021 ENVIRONMENTAL SCIENCES 12 / 279 = 0.043 2021 Q1 T1 ENGINEERING, ENVIRONMENTAL 4 / 54 = 0.074 2021 Q1 T1 2.589 2021 Waste Management and Disposal 2021 Q1 Economics and Econometrics 2021 Q1 17.9 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Vera, P. Universidad de Zaragoza (orcid)0000-0002-8765-4319 Nerín, C. Universidad de Zaragoza (orcid)0000-0003-2685-5739 Lin, Q.B. Zhong, H.N. 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 2009 X Universidad de Zaragoza Dpto. Química Analítica Proy. investigación HVA 167 (2021), 105365 [9 pp] Resour. conserv. recycl. Resources, Conservation and Recycling 0921-3449 583421 http://zaguan.unizar.es/record/163923/files/texto_completo.pdf Postprint 2449132 http://zaguan.unizar.es/record/163923/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:163923 articulos driver 2025-11-13-14:57:56 ARTICLE