dc.identifier.uri |
http://dx.doi.org/10.15488/2999 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/3029 |
|
dc.contributor.author |
Gestring, Ingo
|
|
dc.contributor.author |
Mewes, Dieter
|
|
dc.date.accessioned |
2018-02-28T14:00:56Z |
|
dc.date.available |
2018-02-28T14:00:56Z |
|
dc.date.issued |
2002 |
|
dc.identifier.citation |
Gestring, I.; Mewes, D.: Devolatilization of polymers by diffusion and foaming. In: Journal of Reinforced Plastics and Composites 21 (2002), Nr. 5, S. 409-418. DOI: https://doi.org/10.1177/0731684402021005441 |
|
dc.description.abstract |
Devolatilization is a key step in polymer processing. Low-molecular-weight components are removed from a polymeric system. The transport of these components takes place by diffusion to the polymer-vapor interface. This interface can be formed by free surfaces of single-phase polymer melts or by bubbles. In this study the transport with and without bubble nucleation is investigated independently from each other in a specially designed apparatus. The mass transport in thin films and in rotating pools with surface renewal is measured. High surface renewal rates and thick films enhance the mass transfer for single phase flow. For two phase flow and devolatilization the conditions for bubble nucleation and foam formation are investigated. The bubble nucleation is observed in the rotating pool in the area of high shear velocity. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
London : SAGE Publications Ltd. |
|
dc.relation.ispartofseries |
Journal of Reinforced Plastics and Composites 21 (2002), Nr. 5 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich. |
|
dc.subject |
Diffusion |
eng |
dc.subject |
Interfaces (materials) |
eng |
dc.subject |
Mass transfer |
eng |
dc.subject |
Molecular weight |
eng |
dc.subject |
Nucleation |
eng |
dc.subject |
Thick films |
eng |
dc.subject |
Thin films |
eng |
dc.subject |
Devolatilization |
eng |
dc.subject |
Foaming |
eng |
dc.subject |
Polymers |
eng |
dc.subject.ddc |
620 | Ingenieurwissenschaften und Maschinenbau
|
ger |
dc.subject.ddc |
660 | Technische Chemie
|
ger |
dc.title |
Devolatilization of polymers by diffusion and foaming |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
0731-6844 |
|
dc.relation.doi |
https://doi.org/10.1177/0731684402021005441 |
|
dc.bibliographicCitation.issue |
5 |
|
dc.bibliographicCitation.volume |
21 |
|
dc.bibliographicCitation.firstPage |
409 |
|
dc.bibliographicCitation.lastPage |
418 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|