Viscosity and drop size evolution during suspension polymerization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F16%3A43902738" target="_blank" >RIV/60461373:22340/16:43902738 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/aic.15320" target="_blank" >http://dx.doi.org/10.1002/aic.15320</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/aic.15320" target="_blank" >10.1002/aic.15320</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Viscosity and drop size evolution during suspension polymerization

Popis výsledku v původním jazyce

Annually, suspension polymerization produces kilotons of material with properties given by process conditions. The prediction of material properties requires a relevant description of processes on various scales from the molecular level to reactor design. The polymerization occurring on the molecular scale was described by a kinetic scheme of homopolymerization. The molecular level was connected to the meso-scale by the viscosity evolution inside a single monomer/polymer drop. The viscosity model follows the change in the reaction mixture composition and its predictions were validated by the rheology measurements. During the suspension polymerization, the viscosity evolution affects the dispersion breakage and coalescence on the meso-scale, which is closely connected to the flow conditions given by the reactor design and operation conditions. This complex problem was described by a coupled CFD-PBE model. The presented study proposes a modeling approach to control the suspension polymerization by stirring speed to obtain the desired drop size.

Název v anglickém jazyce

Viscosity and drop size evolution during suspension polymerization

Popis výsledku anglicky

Annually, suspension polymerization produces kilotons of material with properties given by process conditions. The prediction of material properties requires a relevant description of processes on various scales from the molecular level to reactor design. The polymerization occurring on the molecular scale was described by a kinetic scheme of homopolymerization. The molecular level was connected to the meso-scale by the viscosity evolution inside a single monomer/polymer drop. The viscosity model follows the change in the reaction mixture composition and its predictions were validated by the rheology measurements. During the suspension polymerization, the viscosity evolution affects the dispersion breakage and coalescence on the meso-scale, which is closely connected to the flow conditions given by the reactor design and operation conditions. This complex problem was described by a coupled CFD-PBE model. The presented study proposes a modeling approach to control the suspension polymerization by stirring speed to obtain the desired drop size.

Druh

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

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

AIChE Journal

ISSN

0001-1541

e-ISSN

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Svazek periodika

62

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

4229-4239

Kód UT WoS článku

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EID výsledku v databázi Scopus

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