Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Yves DEMAY"'
Autor:
Jean-François Agassant, Yves Demay
Publikováno v:
International Polymer Processing. 36:264-275
Cast film extrusion allows producing technical polymer films for packaging and coating applications. Different kinds of defects may be observed. For packaging applications, the challenge is to obtain very thin films in stable conditions at the highes
Autor:
Yves DEMAY, Jean-François AGASSANT
Publikováno v:
Plastiques et composites.
Autor:
Jean-François Agassant, Yves Demay
Publikováno v:
Polymers. 14(7)
A review of the different coextrusion processes and the related processing problems is presented. A one-dimensional bilayer coextrusion Poiseuille flow model is first developed with Newtonian and shear-thinning rheological behaviors. A transitory com
Publikováno v:
International Polymer Processing. 33:363-370
The rheology of plastisol formulations for flooring applications using knife-over-roll coating process is studied using both Couette and capillary rheometers. The behavior is similar in many aspects to the rheology of suspensions: Shear thinning beha
Autor:
Yves Demay
Publikováno v:
Textiles industriels.
Le filage textile est le procede industriel permettant la fabrication des fils et fibres synthetiques a partir d‘un polymere fondu (pour les plus gros tonnages) ou en solution. Le produit est extrude puis etire dans l‘air a l‘etat liquide puis
Publikováno v:
International Polymer Processing
International Polymer Processing, 2016, 31 (3), pp.369-375. ⟨10.3139/217.3214⟩
International Polymer Processing, 2016, 31 (3), pp.369-375. ⟨10.3139/217.3214⟩
Health regulations are becoming increasingly restrictive which leads to develop solvent free laminating processes. Hot melt adhesives represent an interesting solution to bond two pre-printed substrates of polymer for packaging applications for examp
Publikováno v:
International Journal for Numerical Methods in Fluids. 78:436-454
Summary The polymer cast film process consists of stretching a molten polymer film between a flat die and a drawing roll. Drawing instabilities are often encountered and represent a drastic limitation to the process. Newtonian fluid film stretching s
Autor:
Yamina Abdesselam, Yves Demay, Richard Peres, Romain Castellani, Jean-François Agassant, Diego Gourdin
Publikováno v:
International Polymer Processing
International Polymer Processing, 2017, 32 (5), pp.555-561. ⟨10.3139/217.3422⟩
International Polymer Processing, 2017, 32 (5), pp.555-561. ⟨10.3139/217.3422⟩
The knife-over-roll coating process of plastisol formulations for flooring applications has been investigated. The coexistence of smooth spherical PVC particles and rough calcium carbonate aggregates in a Newtonian plasticizer makes this suspension a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6ad72d9498a2c06be4c441cc1a6e779
https://hal-mines-paristech.archives-ouvertes.fr/hal-01649127
https://hal-mines-paristech.archives-ouvertes.fr/hal-01649127
Autor:
Didier Clamond, Yves Demay
Publikováno v:
Comptes Rendus Mécanique. 339:692-699
Polymer films are generally manufactured by film blowing. In this process the polymer (a polyethylene for example) is molten in a screw extruder and forced into a tubular die (typical dimensions are several decimeters in diameter and about one mm in
Publikováno v:
International Polymer Processing
International Polymer Processing, 2010, 25 (5), pp.Pages 356-371. ⟨10.3139/217.2347⟩
International Polymer Processing, 2010, 25 (5), pp.Pages 356-371. ⟨10.3139/217.2347⟩
Film blowing, as other elongational polymer forming processes, may present marked drawing instabilities leading to unacceptable products. But in film blowing, these instabilities are much more complex than for example in fibre spinning: there is no s