The effects of adhesive forces on the collision behavior of polyolefin particles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F13%3A43895822" target="_blank" >RIV/60461373:22340/13:43895822 - isvavai.cz</a>

Alternative codes found

RIV/67985874:_____/13:00391817

Result on the web

<a href="http://dx.doi.org/10.1016/j.powtec.2013.03.039" target="_blank" >http://dx.doi.org/10.1016/j.powtec.2013.03.039</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.powtec.2013.03.039" target="_blank" >10.1016/j.powtec.2013.03.039</a>

Result language

angličtina

Original language name

The effects of adhesive forces on the collision behavior of polyolefin particles

Original language description

The collision behavior of particles in a polymerization reactor was simulated with the help of the Discrete Element Method (DEM). Analysis of the magnitudes of the potential forces acting on particles in a fluidized bed shows that the dominant role affecting the collision behavior of polymer particles is represented by adhesive forces causing the formation of liquid bridges and reflecting the entanglement of polymer chains. However, these forces do not act instantaneously. Therefore, the time duration of particle collisions was evaluated and subsequently compared to the characteristic times of liquid bridge formation and chain entanglement. This comparison implies that the collision lasts long enough for adhesive forces to apply. Two approaches are presented and compared which introduce these forces into the DEM algorithm. The first approach applies to any visco-elastic model (e.g. the Maxwell or Kelvin model) for force interactions between microelements from different particles; the s

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GA103%2F09%2F2066" target="_blank" >GA103/09/2066: Analysis and development of constitutive equations for description of non-Newtonian fluids</a><br>

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2013

Confidentiality

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

Name of the periodical

Powder Technology

ISSN

0032-5910

e-ISSN

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Volume of the periodical

243

Issue of the periodical within the volume

červenec 2013

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

27-39

UT code for WoS article

000320143000004

EID of the result in the Scopus database

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