Accueil
Détail de l'auteur
Auteur Martin Bastian |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Playing with "green" stags / Stéphanie Baumann in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 9 (09/2013)
[article]
Titre : Playing with "green" stags Type de document : texte imprimé Auteurs : Stéphanie Baumann, Auteur ; Bernhard Ulmer, Auteur ; Itana Radovanovic, Auteur ; Oliver Stübs, Auteur ; Peter Heidemeyer, Auteur ; Martin Bastian, Auteur ; Lars Ziegler, Auteur ; Jürgen Pfitzer, Auteur ; Helmut Nägele, Auteur ; Bernd Kugler, Auteur ; Andreas Weber, Auteur Année de publication : 2013 Article en page(s) : p. 140-142 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bioplastiques
Elastomères thermoplastiques -- Propriétés mécaniques
Ressources renouvelables
Thermoplastiques vulcanisésIndex. décimale : 668.4 Plastiques, vinyles Résumé : Bio-TPV - The development of a new thermoplastic vulcanisate (TPV), whose raw material basis consists of more than 90 % of renewable materials, has expanded the range of bio-based plastics. It complies with the requirements for toys, and further applications will come. Note de contenu : - New recipe developed
- Properties testes
- Requirements for toys fulfilledPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22935
in KUNSTSTOFFE INTERNATIONAL > Vol. 103, N° 9 (09/2013) . - p. 140-142[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 15505 - Périodique Bibliothèque principale Documentaires Disponible Polymer blends in co-rotating twin-screw extruders / H. Potente in INTERNATIONAL POLYMER PROCESSING, Vol. XVI, N° 1 (03/2001)
[article]
Titre : Polymer blends in co-rotating twin-screw extruders Type de document : texte imprimé Auteurs : H. Potente, Auteur ; Martin Bastian, Auteur Année de publication : 2001 Article en page(s) : p. 14-30 Note générale : Symboles - Abbréviations - Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : The properties of polymer blends are determined to a decisive extent by the morphological structure of the polymer combinations employed. The design of extruders thus calls for models to calculate the estimated morphology development over the length of the extruder screws in the melt-conveying section. Since the most significant morphological changes are observed in the melting section, however, it is also necessary for the morphology formation and development to be analyzed in this section of the extruder. The melting process of binary material combinations in thus important too.
In the context of this research, experimental investigations were conducted using polypropylene/polyamide 6 (PP/PA 6). In the tests, the degree of melting and the morphology development were determined over different screws and compared with calculations. In order to analyze a range of relevant influences, the extruder size, screw configuration, screw speed, weight components and also the viscosity ratio were vaired by using different PP types.
Apart from the model for calculating the melting of polymer blends, a formulation was developed that can be used to estimate the morphological changes occuring in the melt-conveying section. The model is based on the assumption that morphological changes can be estimated by calculating the probabilities of different dropt breakup mechanisms and the coalescence process.
The investigations of the blend morphology in the melting section and the melt-conveying section reveal key findings that have to be taken into account for modeling the formation and development of the morphology. First of all, in the melting section, it is very clear that a kind of melt film removal occurs at the surface of the granules of the second component, which melts at higher temperatures, as these granules melt. The drops of second component in the melting section, which are directly adjacent to fractions that have not yet fully melted in some cases, have already assumed dimensions (in the µm range) similar to those seen at the end of the extrusion process. This means that, in the melting section of the twin-screw extruder, small volumes are broken or worn off the already-molten granules surfaces. An evaluation of scanning electron micrographs also shows that, in the melting section of co-rotating twin-screw extruders, virtually all the breakup mechanisms that can essentially be distinguished take place in parallel, such as quasi-steady drop breakup or supercritical breakup, folding, end pinching, tip streaming and breakup through capillary instabilities. A long side the breakup mechanisms, there are also drops that clearly unite to form bigger drops through coalescence. When comparing the calculations for the melting of polymer blends, relatively good agreement is obtained with the experimental test results. The calculations display a satisfactory level of accuracy, particularly for polymer combinations with similar viscosities and also for bigger extruders.
The calculations with the morphology model also show the same trends as the experimental investigations. Hence, for the design of optimization of twin-screw extruders, it is now possible not only to calculate the fundamental process variables (such as pressure, temperature, melting) but also to estimate the morphology that has a decisive influence on the resultant material properties.Note de contenu : - Experimental investigations
- Test materials
- Rheological properties
- Interfacial tension
- Experiment schedule
- Morphology analysis
- The melting of polymer blends
- The calculation of melting
- Starting parameters for the melting calculation
- Solids content at the stard of melting
- Solids temperature at the start of melting
- Mean melt temperature at the start of melting
- The melting process
- The melting of the polymer particles
- Temperature development of the melt
- Simulation of the melting process
- Verification of the melting calculations - Degrees of melting over the screw length
- Influence of the viscosity ratio
- Influence of the speed with a constant specific trhoughput
- Influence of extruder size
- Degrees of melting at the screw tip
- Influence of the speed with a constant throughput
- Influence of the throughput with a constant speed
- Melting -conclusions
- The morphology of polymer blends in the melting section
- Influence of the viscosity ratio
- Results independent of the point of operation
- The morphology in the melting zone -conclusion
- The morphology of polymer blends in the melt-conveying section - Calculating morphological changes in the melt-conveying section
- Drop breakup
- Superposition of drop breakup and drop coalescence
- Simulation of the morphology development
- Verification of the morphology calculations
- The morphology in the melt conveying zone - ConclusionsDOI : 10.3139/217.1619 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15881
in INTERNATIONAL POLYMER PROCESSING > Vol. XVI, N° 1 (03/2001) . - p. 14-30[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001015 - Périodique Bibliothèque principale Documentaires Disponible Proving sustainability / Kyra Seibert in KUNSTSTOFFE INTERNATIONAL, Vol. 100, N° 2/2010 (02/2010)
[article]
Titre : Proving sustainability Type de document : texte imprimé Auteurs : Kyra Seibert, Auteur ; Oliver Stübs, Auteur ; Martin Bastian, Auteur Année de publication : 2010 Article en page(s) : p. 36 - 38 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.4 Plastiques, vinyles Résumé : Wood polymer - Bioplastics - Sustainable products can potentially be manufactured from wood polymer composites (WPCs). In order to prove the sustainability of these materials the effects of product and process parameters must be known. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9311
in KUNSTSTOFFE INTERNATIONAL > Vol. 100, N° 2/2010 (02/2010) . - p. 36 - 38[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 011980 - Périodique Bibliothèque principale Documentaires Disponible Un PVC amélioré grâce à des mélanges de polymère / Axel Gottschalk in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 853 (11/2007)
[article]
Titre : Un PVC amélioré grâce à des mélanges de polymère Type de document : texte imprimé Auteurs : Axel Gottschalk, Auteur ; Michael Breulmann, Auteur ; Erik Fetter, Auteur ; Karsten Kretschmer, Auteur ; Martin Bastian, Auteur Année de publication : 2007 Article en page(s) : p. 48-50 Langues : Français (fre) Catégories : Alliages polymères
Chlorure de polyvinyle
Résistance thermique
α-méthylstyrène-acrylonitrileIndex. décimale : 668.4 Plastiques, vinyles Résumé : Il est possible d'adapter la résistance à la chaleur du PVC, d'une manière rentable et sans nécessité de suivre la voie du CPVC, grâce à des mélanges avec des AMSAN. Note de contenu : - Améliorer la résistance à la chaleur
- Produire des mélanges dans des conditions douces
- Adapter la stabilité thermique grâce à des stabilisantsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23550
in PLASTIQUES & CAOUTCHOUCS MAGAZINE > N° 853 (11/2007) . - p. 48-50[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008586 - Périodique Bibliothèque principale Documentaires Disponible Quality problems during mold start-up ? / Martin Bastian in KUNSTSTOFFE INTERNATIONAL, Vol. 99, N° 6/2009 (06/2009)
[article]
Titre : Quality problems during mold start-up ? Type de document : texte imprimé Auteurs : Martin Bastian, Auteur ; Siegfried Stitz, Auteur Année de publication : 2009 Article en page(s) : p. 13-16 Note générale : Notes bibliogr. Langues : Anglais (eng) Catégories : Matières plastiques -- Moulage par injection Index. décimale : 668.4 Plastiques, vinyles Résumé : Process control - By aligning the pressure profile in the screw antechamber it is possible to considerably improve on the reproduction accuracy of molded part quality during mold start-up and also to reduce the start-up time. This applies particularly in cases where molds are used on different machines to ensure the flexible use of machine capacity. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5899
in KUNSTSTOFFE INTERNATIONAL > Vol. 99, N° 6/2009 (06/2009) . - p. 13-16[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 011417 - Périodique Bibliothèque principale Documentaires Disponible Real-world tasks for virtual sensors / Thomas Hochrein in KUNSTSTOFFE INTERNATIONAL, Vol. 102, N° 2 (02/2012)
PermalinkThe evolution of non-destructive testing / Giovanni Schober in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 9 (09/2018)
PermalinkThe specialist for high-filled compounds / Christina Hirt in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 6-7 (06-07/2015)
PermalinkThermal management and intensive orange / Robert Schädel in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 5 (2022)
PermalinkUnder high dynamic load / Eduard Kraus in ADHESION - ADHESIVES + SEALANTS, Vol. 13, N° 2/2016 (2016)
PermalinkUnderstanding kneading holistically / Jochen Kettemann in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 6 (2020)
PermalinkWood plastic composites on the right track ? / Martin Bastian in KUNSTSTOFFE PLAST EUROPE, Vol. 95, N° 7/2005 (07/2005)
Permalink