Title :

Effect of Viscosity Ratio of Two Immiscible Polymers on Morphology in Bicomponent Melt Spinning Fibers

Author(s) :

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

Journal title :

Advances in Polymer Technology

Abbreviated title :

Adv. Polym. Technol.

Volume number :

37

Pages :

1134-1141

Publication date :

2019-03-13

ISSN :

0730-6679

English keyword(s) :

Bicomponent fiber
Interfacial stability
Rheology
Segmented pie morphology

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

Bicomponent fibers were melt spun to investigate the effect of individual component viscosity on the cross section morphology. Two couples were tested, polypropylene MFI 18 (PP18) with polyamide 6 (PA6) and, polypropylene ...
Show more >Bicomponent fibers were melt spun to investigate the effect of individual component viscosity on the cross section morphology. Two couples were tested, polypropylene MFI 18 (PP18) with polyamide 6 (PA6) and, polypropylene MFI 25 (PP25) with polyamide 6 (PA6). Viscosity versus shear rates was evaluated by both rotational and capillary rheometers to cover a large range of shear rates. Higher viscosity of PA6 compared to PP25 and PP18 at the theoretical shear rate resulted in the encapsulation of PA6 by PP25 and PP18 at the periphery of the bicomponent fiber cross section. Interfacial instability from the center to the periphery fiber was explained as a result of non-uniformity of shear rates across the fiber cross section. Interface shape dependency on the viscosity ratio of the two polymers has been clearly demonstrated: lower viscosity component wrapping around the higher viscosity one whatever the initial configuration, that is, side-by-side or segmented pie structure.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSAIT
Junia HEI

Collections :

• Génie des matériaux textiles (GEMTEX) - ULR 2641

Submission date :

2023-06-20T02:37:53Z
2024-02-27T13:01:43Z