Thermal, morphological, rheological and deformation under mechanical loading analyses of recycled polyethylene terephthalates / Kivanc Bakir in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 3 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 3 (2022) . - p. 287-302 Titre : Thermal, morphological, rheological and deformation under mechanical loading analyses of recycled polyethylene terephthalates Type de document : texte imprimé Auteurs : Kivanc Bakir, Auteur ; Deniz Aydemir, Auteur ; Timucin Bardak, Auteur ; Murat Emre Kartal, Auteur Année de publication : 2022 Article en page(s) : p. 287-302 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique Déformations (mécanique) Eléments finis, Méthode des Imagerie numérique Matières plastiques -- Propriétés thermiques Matières plastiques -- Recyclage Morphologie (matériaux) Polyéthylène téréphtalate Rhéologie Index. décimale : 668.4 Plastiques, vinyles Résumé : This study aims at determining the mechanical deformation behavior of recycled poly (ethylene terephthalate) (r-PET) with digital image correlation (DIC) and finite element method (FEM), and to investigate the morphological, thermal, and rheological properties of r-PETs. Waste bottles were collected in trash bins and granulated with a cutter. Neat PET (n-PET) was also was used to determine accurately the changes in the properties of r-PET. PET test samples were obtained by injection molding at 260, 265, 270, and 275 °C. DIC and FEM were conducted to detect the deformation behavior of the PETs under mechanical loading. The data showed that the behavior of n-PETs and r-PETs were similar, and the stress distribution was found to densify in various areas for both PETs. The mechanical properties generally increased with increasing processing temperature, the best mechanical properties being obtained for thPETs processed at 275 °C. Scanning electron microscopy (SEM) analysis showed that the morphology of all the PETs were similar. Thermal stability was also found to be similar. The rheological moduli of n-PET processed at 260 °C were the highest, while processing r-PET at 275 °C improved its rheological properties. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of PET test samples - Methods - RESULTS AND DISCUSSION : Mechanical properties of the PETs and the deformation analysis with DIC and FEM under mechanical testing - Morphological analysis - Thermal properties - Rheological properties - Table 1 : TGA Data for n-PET and r-PET processed at different temperatures DOI : https://doi.org/10.1515/ipp-2021-4165 En ligne : https://drive.google.com/file/d/13qTzJI31__flej8f48rzLT0zepAVN-Da/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37907 [article]

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