A la carte input / Carl-Jürgen Wefelmeier in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 10 (10/2017)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 10 (10/2017) . - p. 76-79 Titre : A la carte input : Producing sheet from different input materials Type de document : texte imprimé Auteurs : Carl-Jürgen Wefelmeier, Auteur Année de publication : 2017 Article en page(s) : p. 76-79 Langues : Anglais (eng) Catégories : Emballages en matières plastiques Matières plastiques -- Déchets Matières plastiques -- Extrusion -- Appareils et matériels Polyéthylène téréphtalate Index. décimale : 668.4 Plastiques, vinyles Résumé : Despite fluctuations in the quality of input materials, end products are expected to meet high quality standards, especially in the food sector. The wide range of products available on the fast-paced global PET packaging market calls for a high degree of versatility on the part of plastics converters. For this reason, it is necessary to have lines which have a short process chain capable of producing good quality and which can respond rapidly to different Note de contenu : - Changing requirements - Complemented by filters and viscometer - The multi rotation system - Complemented by filters and viscometer - Practical examples of turn-key plants - Countless product variants and different input materials - Specific uses of the technology - Switching from compact sheet to foam sheet - FIGURES : Food-grade compliant and more : post-consumer input material of variable quality and widely fluctuating moisture content is converted into FDA- and EFSA-compliant sheet - 1. An integral component of a sheet line : the Gneuss Processing Unit (GPU) with MRS 200, RSFgenius 200 and VIS - Edge trim : in addition to bottle flakes and pellets, many converters also want to process regrind from skeletal waste and edge trim direct - 3. Integration of a coextrusion line into an existing sheet downstream section En ligne : https://drive.google.com/file/d/1Y8a2EBCA6el-aF9k5w6a3kGWOAe0p6Gu/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29286 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
19270	-	Périodique	Bibliothèque principale	Documentaires	Disponible

PET : from A to C / Sven Engelmann in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 6-7 (06-07/2019)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 6-7 (06-07/2019) . - p. 41-43 Titre : PET : from A to C : Upcycling of mixed APET bottle flakes into thermally stable rCPET food trays Type de document : texte imprimé Auteurs : Sven Engelmann, Auteur ; Christoph Stoye, Auteur ; Georg Sposny, Auteur ; Carl-Jürgen Wefelmeier, Auteur ; Daniel Ganz, Auteur ; Nicky Klammt, Auteur ; Janine Wyss, Auteur Année de publication : 2019 Article en page(s) : p. 41-43 Langues : Anglais (eng) Catégories : Bouteilles en matières plastiques -- Recyclage Emballages en matières plastiques Extrudeuse à système multirotatif Matières plastiques -- Additifs Matières plastiques -- Extrusion Matières plastiques -- Recyclage Matières plastiques -- Thermoformage Polyéthylène téréphtalate Index. décimale : 668.4 Plastiques, vinyles Résumé : Enhancing mixed bottle flakes by turning them into extrudable recycled crystalling polyethylene terephthalate (rCPET) was the goal of a joint development project looking to close the gap in the PET recycling system. By successfully producing a sheedt made from recycled material suitable for high-quality applications such as thermoformed food trays, Gneuss, Sukano and Illig have demonstrated that this approach is indeed possible. Note de contenu : - Homogeneous melt with MRS extrusion - Additives for color and crystallization - rCPET food trays - Extrusion of the sample sheets with different additives - Process-controlled thermoforming technology - Striking a balance between forming accuracy and thermal stability - Oven tests in packaging lab - In conclusion : potential for high-quality applications - Figure : Thermally stable rCPET food trays made from multicolor APET bottle flakes - Fig. 1 : Process overview : from multicolor APET bottle flakes to CPET for oven-safe food trays - Fig. 2 : Multi rotation extruder system with satellite screws arranged around main screw - Fig. 3 : Surface renewal for the decontamination of plastics : the MRS technology is 100 times more effective than conventional single-screw technology thanks to its satellite screws - Fig. 4 : The timeline of the dynamic melt viscosity shows an increase from around 800 to 1000 Pa-s as a result of the addition of 1% rPET IV enhancer - Fig. 5 : Chain-growth polymerization mechanism using the rPET IV enhancer - Fig. 6 : Oven tests at 200°C for 20 min : rCPET trays ; upper heater at 250°C ; upper and lower heating lower heater at 270°C - Fig. 7 : rCPET food trays made from material sheet 5 before and after the oven test at 270°C on upper and lower heater - Table 1 : Material rolls with different additives - Table 2 : Forming accuracy for the thermoforming test of the sample material rolls (control sample and rCPET) at different temperatures of upper and lower heaters (OHZ UHZ) En ligne : https://drive.google.com/file/d/1tEsSXTOfdquNUDWrN-qtGmz_JZ14TY7n/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32990 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
21073	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)