Triboelectric charging of polyethylene powders: Comparison of same-material and different-material

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F20%3A43959001" target="_blank" >RIV/49777513:23640/20:43959001 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0032591020303156?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0032591020303156?via%3Dihub</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

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-P) and different-material particle-wall (P-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 filledwith 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-P and P-W charging were measured either separately, or in sequence, and in combination of simultaneous P-P and P-W. The differentmaterial P-W charging produced unipolarly charged particles and was much faster than the same-material P-P charging leading to bipolar particle charge distribution.

Název v anglickém jazyce

Triboelectric charging of polyethylene powders: Comparison of same-material and different-material

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-P) and different-material particle-wall (P-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 filledwith 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-P and P-W charging were measured either separately, or in sequence, and in combination of simultaneous P-P and P-W. The differentmaterial P-W charging produced unipolarly charged particles and was much faster than the same-material P-P charging leading to bipolar particle charge distribution.

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

MAY 1 2020

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

713-723

Kód UT WoS článku

000532835500067

EID výsledku v databázi Scopus

2-s2.0-85083465226