Effect of Viscosity Ratio of Two Immiscible Polymers on Morphology in Bicomponent Melt Spinning Fibers
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 evaluat...
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| Veröffentlicht in: | Advances in polymer technology 2018-06, Vol.37 (4), p.1134-1141 |
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| container_title | Advances in polymer technology |
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| creator | Ayad, Esma Cayla, Aurélie Rault, François Gonthier, Anne Campagne, Christine Devaux, Eric |
| description | 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. |
| doi_str_mv | 10.1002/adv.21772 |
| format | Article |
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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.</description><identifier>ISSN: 0730-6679</identifier><identifier>EISSN: 1098-2329</identifier><identifier>DOI: 10.1002/adv.21772</identifier><language>eng</language><publisher>London: Hindawi Limited</publisher><subject>Bicomponent fiber ; Cross-sections ; Dependence ; Engineering Sciences ; Interface stability ; Interfacial stability ; Melt spinning ; Morphology ; Polyamide resins ; Polypropylene ; Rheology ; Rheometers ; Rotation ; Segmented pie morphology ; Shear rate ; Viscosity ; Viscosity ratio</subject><ispartof>Advances in polymer technology, 2018-06, Vol.37 (4), p.1134-1141</ispartof><rights>2016 Wiley Periodicals, Inc.</rights><rights>Copyright © 2018 Wiley Periodicals, Inc.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3682-b9fbe8586f55fb10d42ae565dedb03f36a47d351c028abc1df8de850cfb4a9773</citedby><cites>FETCH-LOGICAL-c3682-b9fbe8586f55fb10d42ae565dedb03f36a47d351c028abc1df8de850cfb4a9773</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://hal.univ-lille.fr/hal-04479886$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Ayad, Esma</creatorcontrib><creatorcontrib>Cayla, Aurélie</creatorcontrib><creatorcontrib>Rault, François</creatorcontrib><creatorcontrib>Gonthier, Anne</creatorcontrib><creatorcontrib>Campagne, Christine</creatorcontrib><creatorcontrib>Devaux, Eric</creatorcontrib><title>Effect of Viscosity Ratio of Two Immiscible Polymers on Morphology in Bicomponent Melt Spinning Fibers</title><title>Advances in polymer technology</title><description>Bicomponent fibers were melt spun to investigate the effect of individual component viscosity on the cross section morphology. 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| ispartof | Advances in polymer technology, 2018-06, Vol.37 (4), p.1134-1141 |
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| language | eng |
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| source | Alma/SFX Local Collection; EZB Electronic Journals Library |
| subjects | Bicomponent fiber Cross-sections Dependence Engineering Sciences Interface stability Interfacial stability Melt spinning Morphology Polyamide resins Polypropylene Rheology Rheometers Rotation Segmented pie morphology Shear rate Viscosity Viscosity ratio |
| title | Effect of Viscosity Ratio of Two Immiscible Polymers on Morphology in Bicomponent Melt Spinning Fibers |
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