Triboelectric charging of polyethylene powders: Comparison of same-material and different-material contributions to the charge build-up

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43920589" target="_blank" >RIV/60461373:22340/20:43920589 - isvavai.cz</a>

Výsledek na webu

<a href="https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=E6mANEjgRqkkBCSB9Ln&page=1&doc=3" target="_blank" >https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=E6mANEjgRqkkBCSB9Ln&page=1&doc=3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.powtec.2020.04.029" target="_blank" >10.1016/j.powtec.2020.04.029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Triboelectric charging of polyethylene powders: Comparison of same-material and different-material contributions to the charge build-up

Popis výsledku v původním jazyce

The understanding of triboelectric charging of industrially important powders can help in avoiding or controlling the particle agglomeration and wall sheeting. We developed a new experimental approach to study both same-material particle-particle (P[sbnd]P) and different-material particle-wall (P[sbnd]W) charging of nascent polyethylene (PE) particles born by catalytic polymerization. We constructed a simple tribocharger consisting of a metal box divided inside into several compartments filled with the PE sample and attached to the vibration shaker. The particle charge distribution was characterized by a self-constructed electrostatic separator. This way, we investigated the charging dynamics of PE particles colliding with other PE particles as well as with metal walls of the box compartments. Both P[sbnd]P and P[sbnd]W charging were measured either separately, or in sequence, and in combination of simultaneous P[sbnd]P and P[sbnd]W. The different-material P[sbnd]W charging produced unipolarly charged particles and was much faster than the same-material P[sbnd]P charging leading to bipolar particle charge distribution. © 2020 Elsevier B.V.

Název v anglickém jazyce

Triboelectric charging of polyethylene powders: Comparison of same-material and different-material contributions to the charge build-up

Popis výsledku anglicky

The understanding of triboelectric charging of industrially important powders can help in avoiding or controlling the particle agglomeration and wall sheeting. We developed a new experimental approach to study both same-material particle-particle (P[sbnd]P) and different-material particle-wall (P[sbnd]W) charging of nascent polyethylene (PE) particles born by catalytic polymerization. We constructed a simple tribocharger consisting of a metal box divided inside into several compartments filled with the PE sample and attached to the vibration shaker. The particle charge distribution was characterized by a self-constructed electrostatic separator. This way, we investigated the charging dynamics of PE particles colliding with other PE particles as well as with metal walls of the box compartments. Both P[sbnd]P and P[sbnd]W charging were measured either separately, or in sequence, and in combination of simultaneous P[sbnd]P and P[sbnd]W. The different-material P[sbnd]W charging produced unipolarly charged particles and was much faster than the same-material P[sbnd]P charging leading to bipolar particle charge distribution. © 2020 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

<a href="/cs/project/GA16-07898S" target="_blank" >GA16-07898S: Aglomerace částic polyolefinů studovaná na meso-měřítku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Powder Technology

ISSN

0032-5910

e-ISSN

—

Svazek periodika

367

Číslo periodika v rámci svazku

neuvedeno

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

713-723

Kód UT WoS článku

000532835500067

EID výsledku v databázi Scopus

2-s2.0-85083465226