Static and Dynamic Stickiness Tests to Measure Particle Stickiness
Sticking of particles has a tremendous impact on powder-processing industries, especially for hygroscopic amorphous powders. A wide variety of experimental methods has been developed to measure at what combinations of temperature and moisture content material becomes sticky. This review describes, f...
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Hosokawa Powder Technology Foundation
2020-09-01
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doaj-7451f71ca8a14749a410bdec387855a92021-03-02T23:45:20ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372020-09-01380264110.14356/kona.2021017konaStatic and Dynamic Stickiness Tests to Measure Particle StickinessErik J.G. Sewalt0Fuweng Zhang1Volkert van Steijn2J. Ruud van Ommen3Gabrie M.H. Meesters4Department of Chemical Engineering, Delft University of Technology, The NetherlandsDepartment of Chemical Engineering, Delft University of Technology, The NetherlandsDepartment of Chemical Engineering, Delft University of Technology, The NetherlandsDepartment of Chemical Engineering, Delft University of Technology, The NetherlandsDepartment of Chemical Engineering, Delft University of Technology, The NetherlandsSticking of particles has a tremendous impact on powder-processing industries, especially for hygroscopic amorphous powders. A wide variety of experimental methods has been developed to measure at what combinations of temperature and moisture content material becomes sticky. This review describes, for each method, how so-called stickiness curves are determined. As particle velocity also plays a key role, we classify the methods into static and dynamic stickiness tests. Static stickiness tests have limited particle motion during the conditioning step prior to the measurement. Thus, the obtained information is particularly useful in predicting the long-term behavior of powder during storage or in packaging. Dynamic stickiness tests involve significant particle motion during conditioning and measurement. Stickiness curves strongly depend on particle velocity, and the obtained information is highly relevant to the design and operation of powder production and processing equipment. Virtually all methods determine the onset of stickiness using powder as a starting point. Given the many industrial processes like spray drying that start from a liquid that may become sticky upon drying, future effort should focus on developing test methods that determine the onset of stickiness using a liquid droplet as a starting point.https://www.jstage.jst.go.jp/article/kona/38/0/38_2021017/_html/-char/enstickinesspowderscakingglass transition temperaturesintering |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Erik J.G. Sewalt Fuweng Zhang Volkert van Steijn J. Ruud van Ommen Gabrie M.H. Meesters |
spellingShingle |
Erik J.G. Sewalt Fuweng Zhang Volkert van Steijn J. Ruud van Ommen Gabrie M.H. Meesters Static and Dynamic Stickiness Tests to Measure Particle Stickiness KONA Powder and Particle Journal stickiness powders caking glass transition temperature sintering |
author_facet |
Erik J.G. Sewalt Fuweng Zhang Volkert van Steijn J. Ruud van Ommen Gabrie M.H. Meesters |
author_sort |
Erik J.G. Sewalt |
title |
Static and Dynamic Stickiness Tests to Measure Particle Stickiness |
title_short |
Static and Dynamic Stickiness Tests to Measure Particle Stickiness |
title_full |
Static and Dynamic Stickiness Tests to Measure Particle Stickiness |
title_fullStr |
Static and Dynamic Stickiness Tests to Measure Particle Stickiness |
title_full_unstemmed |
Static and Dynamic Stickiness Tests to Measure Particle Stickiness |
title_sort |
static and dynamic stickiness tests to measure particle stickiness |
publisher |
Hosokawa Powder Technology Foundation |
series |
KONA Powder and Particle Journal |
issn |
0288-4534 2187-5537 |
publishDate |
2020-09-01 |
description |
Sticking of particles has a tremendous impact on powder-processing industries, especially for hygroscopic amorphous powders. A wide variety of experimental methods has been developed to measure at what combinations of temperature and moisture content material becomes sticky. This review describes, for each method, how so-called stickiness curves are determined. As particle velocity also plays a key role, we classify the methods into static and dynamic stickiness tests. Static stickiness tests have limited particle motion during the conditioning step prior to the measurement. Thus, the obtained information is particularly useful in predicting the long-term behavior of powder during storage or in packaging. Dynamic stickiness tests involve significant particle motion during conditioning and measurement. Stickiness curves strongly depend on particle velocity, and the obtained information is highly relevant to the design and operation of powder production and processing equipment. Virtually all methods determine the onset of stickiness using powder as a starting point. Given the many industrial processes like spray drying that start from a liquid that may become sticky upon drying, future effort should focus on developing test methods that determine the onset of stickiness using a liquid droplet as a starting point. |
topic |
stickiness powders caking glass transition temperature sintering |
url |
https://www.jstage.jst.go.jp/article/kona/38/0/38_2021017/_html/-char/en |
work_keys_str_mv |
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