Titre :

Influence of Rheological and Thermal Properties of Polymers During Melt Spinning on Bicomponent Fiber Morphology

Auteur(s) :

Ayad, Esma [Auteur]
École nationale supérieure des arts et industries textiles [ENSAIT]
Université de Lille
Génie et Matériaux Textiles [GEMTEX]
Cayla, Aurélie [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
Génie et Matériaux Textiles [GEMTEX]
Rault, François [Auteur]
Gonthier, Anne [Auteur]
Leblan, Thierry [Auteur]
Campagne, Christine [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
Ecole nationale supérieure des arts et industries textiles de Roubaix (ENSAIT)
Université Lille Nord de France (COMUE)
Devaux, Eric [Auteur]
École nationale supérieure des arts et industries textiles [ENSAIT]
Génie et Matériaux Textiles [GEMTEX]
Université Lille Nord de France (COMUE)

Titre de la revue :

Journal of Materials Engineering and Performance

Nom court de la revue :

J. Mater. Eng. Perform.

Numéro :

25

Pagination :

3296-3302

Date de publication :

2019-06-30

ISSN :

1059-9495

Mot(s)-clé(s) en anglais :

bicomponent fibers
DMA
interfacial adhesion
interfacial stability
morphology
rheology

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

Microfibers can be obtained by bicomponent spinning, followed by subsequent mechanical splitting. During process, two materials are coextruded in a die to form a unique complex morphology. Many factors affect these ...
Lire la suite >Microfibers can be obtained by bicomponent spinning, followed by subsequent mechanical splitting. During process, two materials are coextruded in a die to form a unique complex morphology. Many factors affect these morphologies: melt viscosity and difference of crystallization temperature combined with polymers position. Consequently, fiber splitting can be improved by choosing an association of polymers with a stable interface and a poor adhesion. The aim of this study is to understand which intrinsic parameters of polymers allow to enhance bicomponent fiber's splitting. Bicomponent fibers (side-by-side and sheath/core) have been made with two grades of polypropylene and polyamide 6. Instable interface happens when a low-viscosity polymer flows around and encapsulates a high-viscosity material. Possible mechanism responsible of interface deformation is variation of shear rates through the morphology (highest shear rate is at the fiber periphery). DMA analysis reveals that fiber with polyamide as core exceeds the strength of fiber with polyamide as sheath. This increase of strength can be attributed to a better adhesion than fibers with PA6 in sheath. From experimental results, the position combined with the difference crystallization temperature shows poor or strong interface.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
ENSAIT
Junia HEI

Collections :

• Génie des matériaux textiles (GEMTEX) - ULR 2641

Date de dépôt :

2023-06-20T02:34:29Z
2024-02-23T10:20:14Z