Academic Journal
Slip of styrene–butadiene rubbers: The effects of pressure and viscous heating
| العنوان: | Slip of styrene–butadiene rubbers: The effects of pressure and viscous heating |
|---|---|
| المؤلفون: | Georgantopoulos, Christos K., Zhang, Ziyue, Pollard, Michael A., Causa, Andrea, Kádár, Roland, Wilhelm, Manfred, van Ruymbeke, Evelyne, Hatzikiriakos, Savvas G. |
| المساهمون: | UCL - SST/IMCN/BSMA - Bio and soft matter |
| المصدر: | Physics of Fluids, Vol. 36, no.1 (2024) |
| بيانات النشر: | AIP Publishing |
| سنة النشر: | 2024 |
| المجموعة: | DIAL@USL-B (Université Saint-Louis, Bruxelles) |
| مصطلحات موضوعية: | Condensed Matter Physics, Fluid Flow and Transfer Processes, Mechanics of Materials, Computational Mechanics, Mechanical Engineering |
| الوصف: | During the processing of elastomeric compounds under high flow rates significant pressure drops (106-108 Pa) are ncountered. Under such conditions, the viscosity of these compounds is significantly affected by pressure and viscous heating. Moreover, strong flow rates may cause these systems to slip at the wall, violating the classical no-slip boundary condition of fluid mechanics. To determine the slip velocity by the well-known Mooney method, the effects of pressure and viscous heating should be considered. In this work an experimental methodology is developed to determine the slip velocity of styrene-butadiene compounds in capillary flow corrected for the effects of pressure and viscous heating. First, the temperature increase due to viscous heating is measured during the extrusion process and accounted for in correcting the experimental data to infer the slip velocity. Consequently, the corrected experimental data for the effects of pressure and viscous heating are used to calculate the slip velocity from the deviation of the linear viscoelastic behavior (deviation from the Cox-Merz rule). The Mooney method is also used to confirm the calculated slip velocity of the elastomeric compounds. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1070-6631 1089-7666 |
| Relation: | boreal:284503; http://hdl.handle.net/2078.1/284503; urn:ISSN:1070-6631; urn:EISSN:1089-7666 |
| DOI: | 10.1063/5.0191839 |
| الاتاحة: | http://hdl.handle.net/2078.1/284503 https://doi.org/10.1063/5.0191839 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.6FEC25D9 |
| قاعدة البيانات: | BASE |
| تدمد: | 10706631 10897666 |
|---|---|
| DOI: | 10.1063/5.0191839 |