Description of the flow induced coalescence in immiscible polymer blends - advances and persisting problems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F13%3A00394411" target="_blank" >RIV/61389013:_____/13:00394411 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4802622" target="_blank" >http://dx.doi.org/10.1063/1.4802622</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4802622" target="_blank" >10.1063/1.4802622</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Description of the flow induced coalescence in immiscible polymer blends - advances and persisting problems

Popis výsledku v původním jazyce

The contribution discusses present state of art of modeling of the flow induced coalescence with respect to applicability of its results to the control of the phase structure evolution in flowing polymer blends. It is shown that the theory based on the switch between equations for matrix drainage between spherical or highly flattened droplets provides for probability, Pc, that the collision of droplets will be followed by their fusion, similar dependences on system parameters as more complicated modeling. This theory facilitates to consider the effect of the matrix elasticity on coalescence. Pc decreases with the matrix relaxation time. This decrease is small for short relaxation times but pronounced for long relaxation times. A new equation for description of the matrix drainage between flattened droplets is proposed, which is applicable for the whole range of viscosity ratios of the droplets and matrixes. Comparison of the assumptions of available theories of coalescence with charact

Název v anglickém jazyce

Description of the flow induced coalescence in immiscible polymer blends - advances and persisting problems

Popis výsledku anglicky

The contribution discusses present state of art of modeling of the flow induced coalescence with respect to applicability of its results to the control of the phase structure evolution in flowing polymer blends. It is shown that the theory based on the switch between equations for matrix drainage between spherical or highly flattened droplets provides for probability, Pc, that the collision of droplets will be followed by their fusion, similar dependences on system parameters as more complicated modeling. This theory facilitates to consider the effect of the matrix elasticity on coalescence. Pc decreases with the matrix relaxation time. This decrease is small for short relaxation times but pronounced for long relaxation times. A new equation for description of the matrix drainage between flattened droplets is proposed, which is applicable for the whole range of viscosity ratios of the droplets and matrixes. Comparison of the assumptions of available theories of coalescence with charact

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP106%2F11%2F1069" target="_blank" >GAP106/11/1069: Rozpad a koalescence kapek v tekoucích směsích nemísitelných polymerů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Novel Trends in Rheology V. AIP Conference Proceedings 1526

ISBN

978-0-7354-1151-7

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

14

Strana od-do

278-291

Název nakladatele

AIP Publishing

Místo vydání

New York

Místo konání akce

Zlín

Datum konání akce

30. 7. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000319829500024