PMID- 38201736
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240112
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 16
IP  - 1
DP  - 2023 Dec 26
TI  - Identification of Plastics in Mixtures and Blends through Pyrolysis-Gas 
      Chromatography/Mass Spectrometry.
LID - 10.3390/polym16010071 [doi]
LID - 71
AB  - In this paper, the possibility of detecting polymers in plastic mixtures and 
      extruded blends has been investigated. Pyrolysis-gas chromatography/mass 
      spectrometry (py-GC/MS) allows researchers to identify multicomponent mixtures 
      and low amounts of polymers without high spatial resolution, background noise and 
      constituents mix interfering, as with molecular spectrometry techniques normally 
      used for this purpose, such as Fourier transform infrared spectroscopy (FTIR) and 
      Raman spectroscopy and differential scanning calorimetry (DSC). In total, 15 
      solid mixtures of low-density polyethylene (LDPE), polypropylene (PP), 
      polystyrene (PS), polyamide (PA) and polycarbonate (PC) in various combinations 
      have been qualitatively analyzed after choosing their characteristic pyrolysis 
      products and each polymer has been detected in every mix; thus, in extruded 
      blends of high-density polyethylene (HDPE), PP and PS had varying weight 
      percentages of the individual constituents ranging from 10 up to 90. Moreover, 
      quantitative analysis of these polymers has been achieved in every blend with a 
      trend that can be considered linear with coefficients of determination higher 
      than 0.9, even though the limits of quantification are lower with respect to the 
      ones reported in the literature, probably due to the extrusion process.
FAU - Gnoffo, Chiara
AU  - Gnoffo C
AD  - Department of Applied Science and Technology, Politecnico di Torino, V.le Teresa 
      Michel, 5, 15121 Alessandria, Italy.
FAU - Frache, Alberto
AU  - Frache A
AUID- ORCID: 0000-0002-2572-3235
AD  - Department of Applied Science and Technology, Politecnico di Torino, V.le Teresa 
      Michel, 5, 15121 Alessandria, Italy.
LA  - eng
PT  - Journal Article
DEP - 20231226
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC10780318
OTO - NOTNLM
OT  - blends
OT  - calibration curves
OT  - polymers
OT  - py-GC/MS
COIS- The authors declare no conflicts of interest.
EDAT- 2024/01/11 07:42
MHDA- 2024/01/11 07:43
PMCR- 2023/12/26
CRDT- 2024/01/11 01:07
PHST- 2023/11/19 00:00 [received]
PHST- 2023/12/19 00:00 [revised]
PHST- 2023/12/23 00:00 [accepted]
PHST- 2024/01/11 07:43 [medline]
PHST- 2024/01/11 07:42 [pubmed]
PHST- 2024/01/11 01:07 [entrez]
PHST- 2023/12/26 00:00 [pmc-release]
AID - polym16010071 [pii]
AID - polymers-16-00071 [pii]
AID - 10.3390/polym16010071 [doi]
PST - epublish
SO  - Polymers (Basel). 2023 Dec 26;16(1):71. doi: 10.3390/polym16010071.