Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 35-43 |
| Seitenumfang | 9 |
| Fachzeitschrift | KGK Kautschuk Gummi Kunststoffe |
| Jahrgang | 72 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - März 2019 |
| Extern publiziert | Ja |
Abstract
Employing a high-pressure capillary viscometer, this study investigates the flow behavior of rubber compounds as a function of compound viscosity. Test series are carried out with EPDM rubbers and additionally, the compound viscosity of a low-molecular-weight EPDM is selectively varied by admixing different concentrations of carbon black or oil so as to shed light on the influence of recipe-dependent viscosity on the wall-slip effect. The results show that the wall-slip effect increases as the recipe-dependent viscosity and the molecular weight of the raw polymer rise and that the critical wall shear stress indicating supercritical flow behavior is achieved even at lower shear rates.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Maschinenbau
- Werkstoffwissenschaften (insg.)
- Polymere und Kunststoffe
- Ingenieurwesen (insg.)
- Wirtschaftsingenieurwesen und Fertigungstechnik
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: KGK Kautschuk Gummi Kunststoffe, Jahrgang 72, Nr. 3, 03.2019, S. 35-43.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Wall-slip effects and their dependence on the recipe- and molecular-weight-induced compound viscosity
AU - Klie, B.
AU - Schubert, E.
AU - Giese, U.
PY - 2019/3
Y1 - 2019/3
N2 - Employing a high-pressure capillary viscometer, this study investigates the flow behavior of rubber compounds as a function of compound viscosity. Test series are carried out with EPDM rubbers and additionally, the compound viscosity of a low-molecular-weight EPDM is selectively varied by admixing different concentrations of carbon black or oil so as to shed light on the influence of recipe-dependent viscosity on the wall-slip effect. The results show that the wall-slip effect increases as the recipe-dependent viscosity and the molecular weight of the raw polymer rise and that the critical wall shear stress indicating supercritical flow behavior is achieved even at lower shear rates.
AB - Employing a high-pressure capillary viscometer, this study investigates the flow behavior of rubber compounds as a function of compound viscosity. Test series are carried out with EPDM rubbers and additionally, the compound viscosity of a low-molecular-weight EPDM is selectively varied by admixing different concentrations of carbon black or oil so as to shed light on the influence of recipe-dependent viscosity on the wall-slip effect. The results show that the wall-slip effect increases as the recipe-dependent viscosity and the molecular weight of the raw polymer rise and that the critical wall shear stress indicating supercritical flow behavior is achieved even at lower shear rates.
KW - Compound viscosity
KW - EPDM
KW - Highpressure capillary viscometer (HCV)
KW - Rheology
KW - Rubber extrusion
KW - Slip-stick
KW - Wall slip
UR - http://www.scopus.com/inward/record.url?scp=85063578550&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85063578550
VL - 72
SP - 35
EP - 43
JO - KGK Kautschuk Gummi Kunststoffe
JF - KGK Kautschuk Gummi Kunststoffe
SN - 0948-3276
IS - 3
ER -