Details
| Original language | English |
|---|---|
| Pages (from-to) | 46-58 |
| Number of pages | 13 |
| Journal | KGK Kautschuk Gummi Kunststoffe |
| Volume | 68 |
| Issue number | 7-8 |
| Publication status | Published - 1 Jul 2015 |
| Externally published | Yes |
Abstract
The aim of this study is to investigate the flow behavior of rubber compounds as a function of the coating and temperature of the flow channel of the capillary. For this purpose, a high-pressure capillary viscometer with a heated slot capillary is used to generate the pressure profile of rubber mixtures of different Mooney viscosities at various shear rates. Working with the flow curves generated, the slip ratio, which is influenced by flow anomalies such as wall slip and slip-stick effects, is determined relative to total volume flow. The results show that in the case of the flow channel geometry employed here, it is mainly the uncoated reference capillary that exhibits the highest slip ratio, regardless of the viscosity of the rubber mixture.
Keywords
- "Slip-stick effect", Coating, High pressure capillary viscometry, Rheology, Rubber extrusion, Wall slip
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Polymers and Plastics
- Engineering(all)
- Industrial and Manufacturing Engineering
- Materials Science(all)
- Materials Chemistry
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In: KGK Kautschuk Gummi Kunststoffe, Vol. 68, No. 7-8, 01.07.2015, p. 46-58.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of the flow channel coating of the high pressure capillary viscometer on the formation of wall slip effects in the case of rubber compounds
AU - Klie, Benjamin
AU - Haberstroh, Edmund
AU - Giese, Ulrich
AU - Brockhaus, Sebastian
AU - Schöppner, Volker
PY - 2015/7/1
Y1 - 2015/7/1
N2 - The aim of this study is to investigate the flow behavior of rubber compounds as a function of the coating and temperature of the flow channel of the capillary. For this purpose, a high-pressure capillary viscometer with a heated slot capillary is used to generate the pressure profile of rubber mixtures of different Mooney viscosities at various shear rates. Working with the flow curves generated, the slip ratio, which is influenced by flow anomalies such as wall slip and slip-stick effects, is determined relative to total volume flow. The results show that in the case of the flow channel geometry employed here, it is mainly the uncoated reference capillary that exhibits the highest slip ratio, regardless of the viscosity of the rubber mixture.
AB - The aim of this study is to investigate the flow behavior of rubber compounds as a function of the coating and temperature of the flow channel of the capillary. For this purpose, a high-pressure capillary viscometer with a heated slot capillary is used to generate the pressure profile of rubber mixtures of different Mooney viscosities at various shear rates. Working with the flow curves generated, the slip ratio, which is influenced by flow anomalies such as wall slip and slip-stick effects, is determined relative to total volume flow. The results show that in the case of the flow channel geometry employed here, it is mainly the uncoated reference capillary that exhibits the highest slip ratio, regardless of the viscosity of the rubber mixture.
KW - "Slip-stick effect"
KW - Coating
KW - High pressure capillary viscometry
KW - Rheology
KW - Rubber extrusion
KW - Wall slip
UR - http://www.scopus.com/inward/record.url?scp=85019203247&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85019203247
VL - 68
SP - 46
EP - 58
JO - KGK Kautschuk Gummi Kunststoffe
JF - KGK Kautschuk Gummi Kunststoffe
SN - 0948-3276
IS - 7-8
ER -