Coalescence in quiescent polymer blends with a high content of the dispersed phase

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F12%3A00377756" target="_blank" >RIV/61389013:_____/12:00377756 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.eurpolymj.2012.04.017" target="_blank" >http://dx.doi.org/10.1016/j.eurpolymj.2012.04.017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.eurpolymj.2012.04.017" target="_blank" >10.1016/j.eurpolymj.2012.04.017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Coalescence in quiescent polymer blends with a high content of the dispersed phase

Popis výsledku v původním jazyce

Coalescence in molten quiescent polymer blends induced by van der Waals forces is studied theoretically. Interaction between a droplet and its nearest neighbor keeping spherical shape during drainage of the matrix trapped between them is considered. It is assumed that droplets having a time dependent radius R are randomly distributed in the blend through the whole course of the coalescence. Various approaches to calculation of the average time of coalescence, tc are compared. Calculated dependence of Ron the time of coalescence, t, is compared with experimental results for polypropylene/ethylene?propylene rubber (PP/EPR) blends. Experimental results show decreasing slope of R3 vs. t dependence, especially for a higher content of dispersed EPR. Theories using average h0 or direct averaging of tc predict somewhat smaller rate of coalescence than that experimentally determined for PP/EPR blends. Reasons of these differences are discussed

Název v anglickém jazyce

Coalescence in quiescent polymer blends with a high content of the dispersed phase

Popis výsledku anglicky

Coalescence in molten quiescent polymer blends induced by van der Waals forces is studied theoretically. Interaction between a droplet and its nearest neighbor keeping spherical shape during drainage of the matrix trapped between them is considered. It is assumed that droplets having a time dependent radius R are randomly distributed in the blend through the whole course of the coalescence. Various approaches to calculation of the average time of coalescence, tc are compared. Calculated dependence of Ron the time of coalescence, t, is compared with experimental results for polypropylene/ethylene?propylene rubber (PP/EPR) blends. Experimental results show decreasing slope of R3 vs. t dependence, especially for a higher content of dispersed EPR. Theories using average h0 or direct averaging of tc predict somewhat smaller rate of coalescence than that experimentally determined for PP/EPR blends. Reasons of these differences are discussed

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

<a href="/cs/project/IAA200500903" target="_blank" >IAA200500903: Vliv koalescence a krystalizace na vývoj fázové struktury při chlazení polymerních směsí.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

European Polymer Journal

ISSN

0014-3057

e-ISSN

—

Svazek periodika

48

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1230-1240

Kód UT WoS článku

000306681200010

EID výsledku v databázi Scopus

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