Keeping the smell in / Carl-Christoph Höhne in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 6 (2022)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 6 (2022) . - p. 28-31 Titre : Keeping the smell in : Method to prevent odor emission from plastic recyclates Type de document : texte imprimé Auteurs : Carl-Christoph Höhne, Auteur ; Andreas Menrath, Auteur ; Rudolf Pfaendner, Auteur ; Elke Metzsch-Zilligen, Auteur ; Bianca Lok, Auteur Année de publication : 2022 Article en page(s) : p. 28-31 Langues : Anglais (eng) Catégories : Analyse sensorielle Caractérisation Construction sandwich Matières plastiques -- Additifs Matières plastiques -- Moulage par injection multicomposant Matières plastiques -- Odeurs Odeurs -- Lutte contre Produits et matériaux recyclés Zéolites Index. décimale : 668.4 Plastiques, vinyles Résumé : Plastic recyclates and plastics containing natural materials often have an unpleasant odor. This is not only a problem during production – it also severely limits the application range of the plastics concerned. However, an odor barrier layer with special additives can significantly reduce odor release. Note de contenu : Plastic recyclates and plastics containing natural materials often have an unpleasant odor. This is not only a problem during production - it also severely limits the application range of the plastics concerned. However, an odor barrier layer with special additives can significantly reduce odor release. - Fig. 1 : Production process for the sandwich component : two-component injection molding enables the production of the components. However, due to the molten state of the polymers, odorants migrate from the core into the skin during processing - Fig. 2 : Sensory characterization of the odor release of the core material from PP recycled sandwich test specimens with an odor barrier layer (storage at 80 °C) : it is clear that odor reduction is highly dependent on the material and additive, its location and the amount used - Fig. 3 : Odor release of sandwich test specimens, with PS core material made from fishing sector recyclates and odor barrier layer (storage at 80 °C): the best effect can be achieved with hydrophilic zeolite - Fig. 4 : Characterization of odor release from PE lignin sandwich test specimens with odor barrier layer (storage at 80 °C) : hydrophilic zeolite is proving to be the additive of choice for reducing lignin odor En ligne : https://drive.google.com/file/d/1YI98DWTZ0w_TUK3NhSAuNkgzw7Wjpnme/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38099 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
23522	-	Périodique	Bibliothèque principale	Documentaires	Disponible

The nose has had its day / Stefan Hofele in PLASTICS INSIGHTS, Vol. 114, N° 2-2024 (2024)  

[article]  inPLASTICS INSIGHTS > Vol. 114, N° 2-2024 (2024) . - p. 45-47 Titre : The nose has had its day : Instrumental analysis of odor for automotive parts Type de document : texte imprimé Auteurs : Stefan Hofele, Auteur Année de publication : 2024 Article en page(s) : p. 45-47 Langues : Anglais (eng) Catégories : Automobiles -- Habitacles Matières plastiques -- Odeurs Mesure -- Instruments Odeurs -- Analyse Olfactométrie Index. décimale : 668.4 Plastiques, vinyles Résumé : Odor is an important criterion when buying a car. Until now, manufacturers and suppliers have analyzed odor using the noses of trained persons. However, different persons judge the same odor differently. Instrumental analysis can measure odors objectively and rigorously. Odor can thus be globally standardized and subsequently efficiently reduced. Note de contenu : - The VOC-G method works differently - Improving the odor of parts - Measurement system analyses according to process 1 are also possible - 7-day prediction by algorithm - Fig. 1 : Structure of the olfactory pyramid, with graphical weighting of the individual intervals: Substances associated with the heart note are perceived more strongly than those from the other two regions - Fig. 2 : The results of the VOC-G method and two panels for different materials show that the process provides very good results - Fig. 3 : The measurements performed during production show that the deviations from the mean value are very small. The human panel, on the other hand, has no means of distinguishing such small nuances - Fig. 4 : Checking of the 7-day prediction shows that the values agree very well with panel test values for materials that had been preconditioned for 7 days - Table : Rating table of the odor intensity according to VDA 270 En ligne : https://drive.google.com/file/d/1FZrMg-S_0kUkFG0QA-fZ9iRFfv2maXSm/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40950 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24542	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)