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The good ones go into the pot, the bad ones go into the crop / Christian Frank in KUNSTSTOFFE INTERNATIONAL, Vol. 104, N° 4 (04/2014)
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Titre : The good ones go into the pot, the bad ones go into the crop Type de document : texte imprimé Auteurs : Christian Frank, Auteur Année de publication : 2014 Article en page(s) : p. 32-33 Langues : Anglais (eng) Catégories : Granulés plastiques
Impuretés
Mesures optiques
Qualité -- Contrôle
Rayons XIndex. décimale : 668.4 Plastiques, vinyles Résumé : Purity inspection - Impurities in plastic pellets have to be detected and sorted out effectively for industrial processes, even when they are melted down into the pellet. This is achieved by a purity inspection system, which includes a combination of X-ray technology and an optical system. Note de contenu : - Suitable for transparent and colored pellets
- Increasing quality and functionalityEn ligne : https://drive.google.com/file/d/1rIs6ahD3pE8sS_E7wpWLEIjBKu3zKVnL/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21262
in KUNSTSTOFFE INTERNATIONAL > Vol. 104, N° 4 (04/2014) . - p. 32-33[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16187 - Périodique Bibliothèque principale Documentaires Disponible The one that shears, splits, and folds material / François Loviat in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 8 (2020)
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Titre : The one that shears, splits, and folds material : Gentle compounding with high mixing effect and good scalability in the co-kneader Type de document : texte imprimé Auteurs : François Loviat, Auteur ; Andreas Niklaus, Auteur ; Robert Hollosi, Auteur Année de publication : 2020 Article en page(s) : p. 46-49 Langues : Anglais (eng) Catégories : Granulés plastiques
Malaxeurs et mélangeurs
Matières plastiques -- ExtrusionIndex. décimale : 668.4 Plastiques, vinyles Résumé : The patent on the operating principle of the co-kneader was applied for three quarters of a century ago. Compared to other extruder technologies, it features a clearly higher mixing effect while it processes the raw materials gently. Current applications for its further development range from reactive, shear-sensitive plastics to the compounding of high-performance engineering plastics. Note de contenu : - Kneading flights : They make it work
- From the idea to a wide range of applications
- Figure : Looking into the process chamber of the current genration of Compeo type co-kneaders we see the position of the statonary kneading pins in the barrel that comb the kneading flights of the modular
- Fig. 2 : Title figure and sketch from Heinz List's patent specification no. 247704
- Fig. 3 : In operation, the plastic mass is sheared in the shear gap between the kneading flights and kneading pins
- Fig. 4 : Interaction between screw shaft rotation and reciprocation
- Fig. 5 : Mixing effect of a four-flight screw element spread out in the plane and abstractly represented using the kneading pin paths that arise during one complete revolution of the screw shaft. The plastic mass is sheared, split, and refolded between the kneading pins and the kneader flights passing them in real operation
- Fig. 6 : Technology comparison : degree of fulfillment of requirements for manufacturing semiconductive compounds for high-voltage cables, PVC compounds for medical technology and parts for the electrical industry, each in comparison with a competing compounding technologyEn ligne : https://drive.google.com/file/d/1BvRlL-E8ZgEq8hxL2W9POuVg4h_LOxqb/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34638
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 8 (2020) . - p. 46-49[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22305 - Périodique Bibliothèque principale Documentaires Disponible Time dependence of morphology and mechanical properties of injection molded recycled PET / B. Molnár in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 2 (05/2017)
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Titre : Time dependence of morphology and mechanical properties of injection molded recycled PET Type de document : texte imprimé Auteurs : B. Molnár, Auteur ; F. Ronkay, Auteur Année de publication : 2017 Article en page(s) : p. 203–208 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Granulés plastiques
Matières plastiques -- Moulage par injection
Matières plastiques -- Propriétés mécaniques
Matières plastiques -- Recyclage
Morphologie (matériaux)
Polyéthylène téréphtalateIndex. décimale : 668.4 Plastiques, vinyles Résumé : During research, injection molded samples were prepared from recycled poly(ethylene-terephthalate) granulate, and their mechanical properties were investigated as a function of time. To understand the changes in mechanical properties, both morphology of injection molded samples and recycled granulates were investigated. A three-phase morphological model was applied for the evaluation of morphological properties while mechanical properties were determined by tensile and impact tests. Relationship was found between morphological and mechanical characteristics as a function of time elapsed since production. Crystalline ratio, tensile strength, and modulus of injection molded specimens increased while impact strength decreased in the four weeks after production. Note de contenu : - EXPERIMENTAL : Materials - Injection molding and sample preparation - Characterization
- RESULTS AND DISCUSSION : Morphology of granulates - Morphology of injection molded samplesDOI : 10.3139/217.3307 En ligne : https://drive.google.com/file/d/1H0CnD-eD3irCTxXnjArPSFrufAk5HTrN/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28499
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXII, N° 2 (05/2017) . - p. 203–208[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18872 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Tiny, but nasty : Removing polymer dust can lower scrap rates Type de document : texte imprimé Auteurs : Simone Fischer, Auteur Année de publication : 2017 Article en page(s) : p. 55-57 Langues : Anglais (eng) Catégories : Dépoussiérage
Granulés plastiques
Matières plastiques -- Défauts
Polyméthacrylate de méthyleLe poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
Poussière de polymèresIndex. décimale : 668.4 Plastiques, vinyles Résumé : When looking through transparent parts, it is not uncommon to spot specks and points. Such particles can be removed by granulate dedusters that are used not only during granulate production, but also, as is becoming more common, for producing such sophisticated parts. Note de contenu : - Systematic cause research indicates the source of error
- Innumerable particules impair part quality
- Error source unequivocally identified
- Consistent result opens new markets
- FIGURES : 1. Before and after : specks caused by polymer dust in a transparent surface and speack-free part surface after the deduster was placed in operation - 2. Microscopic images ; close-up of several dust particules and section of the particule filter with cut dust on it - 3. Result of particule scan of PMMA granulate dust - 4. TS5 sifter module used in production at neo-plastic for dedusting PMMA granulateEn ligne : https://drive.google.com/file/d/1ey8YyP4apZnwM1Mru4OOS9aQXvax27nw/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29121
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 9 (09/2017) . - p. 55-57[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19135 - Périodique Bibliothèque principale Documentaires Disponible