Experimental study of triboelectric charging of polyethylene powders: Effect of humidity, impact velocity and temperature

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F19%3A43917430" target="_blank" >RIV/60461373:22340/19:43917430 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0921883118307465" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0921883118307465</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apt.2018.10.017" target="_blank" >10.1016/j.apt.2018.10.017</a>

Result language

angličtina

Original language name

Experimental study of triboelectric charging of polyethylene powders: Effect of humidity, impact velocity and temperature

Original language description

The manufacturing and handling of polyethylene (PE) powders is associated with undesired charging, resulting in agglomeration of charged particles, wall sheeting and eventually leading to plugging of reactors/conveyors. In this work, we measured the triboelectric charging of PE powders using both sliding and shaking apparatuses in dependence on humidity, impact velocity of colliding particles and temperature of the colliding particles or of the wall. As expected, saturation charge of PE particles is reduced with increasing air humidity. However, in a more detailed study we observed that whenever we change the humidity, the saturation charge rapidly reaches the equilibrium value and no hysteresis in charging that might be caused, for example, by adsorption/desorption thermodynamics is observed. Saturation charge is believed to be independent of impact velocity; however, we show that the saturation charge is proportional to impact velocity in the system of PE particles of non-spherical shape. The charging is more pronounced as the temperature of PE particles increases, however, it is unchanged if only the metal wall in contact with the particles is heated. That is a different trend than observed for spherical metal particles (Greason, 2000). (C) 2018 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20401 - Chemical engineering (plants, products)

Project

<a href="/en/project/GA16-07898S" target="_blank" >GA16-07898S: Agglomeration of polyolefin particles investigated at meso-scale</a><br>

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Advanced Powder Technology

ISSN

0921-8831

e-ISSN

—

Volume of the periodical

30

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

148-155

UT code for WoS article

000455338500016

EID of the result in the Scopus database

2-s2.0-85056240384