Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 123413 |
Fachzeitschrift | POLYMER |
Jahrgang | 215 |
Frühes Online-Datum | 13 Jan. 2021 |
Publikationsstatus | Veröffentlicht - 1 Mai 2021 |
Extern publiziert | Ja |
Abstract
The inner dynamics of carbon black filled elastomeric material under static and dynamic load are examined by means of simultaneous dielectric and dynamic-mechanical analysis at room temperature. The experiments are performed on styrene butadiene rubber (SBR) samples filled with carbon black well above the dielectric percolation threshold. By increasing the mechanical load, a decrease in the conductivity is found due to continuous mechanical damage to the filler network structure, which prevents the transport of charge carriers through the sample via the carbon black network. The Cole-Cole equation is applied to fit the experimental data. The resulting fit-parameters show different load dependence. The mechanical damage to the filler network makes the relaxation processes broader and leads to higher relaxation times, whereby the relaxation strength increases. This has been attributed to an increase in the correlation length of the filler network with increasing load.
ASJC Scopus Sachgebiete
- Chemie (insg.)
- Organische Chemie
- Werkstoffwissenschaften (insg.)
- Polymere und Kunststoffe
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: POLYMER, Jahrgang 215, 123413, 01.05.2021.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
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TY - JOUR
T1 - Simultaneous characterization of dielectric and dynamic-mechanical properties of elastomeric materials under static and dynamic load
AU - Aloui, Sahbi
AU - Lang, Andrej
AU - Deckmann, Horst
AU - Klüppel, Manfred
AU - Giese, Ulrich
N1 - Funding Information: The dynamic-mechanical and dielectric analyzer DiPLEXOR® 500 N was developed within the ZIM project KF2473302DF0 in cooperation with Prof. M. Wilhelm from Karlsruhe Institute of Technology.
PY - 2021/5/1
Y1 - 2021/5/1
N2 - The inner dynamics of carbon black filled elastomeric material under static and dynamic load are examined by means of simultaneous dielectric and dynamic-mechanical analysis at room temperature. The experiments are performed on styrene butadiene rubber (SBR) samples filled with carbon black well above the dielectric percolation threshold. By increasing the mechanical load, a decrease in the conductivity is found due to continuous mechanical damage to the filler network structure, which prevents the transport of charge carriers through the sample via the carbon black network. The Cole-Cole equation is applied to fit the experimental data. The resulting fit-parameters show different load dependence. The mechanical damage to the filler network makes the relaxation processes broader and leads to higher relaxation times, whereby the relaxation strength increases. This has been attributed to an increase in the correlation length of the filler network with increasing load.
AB - The inner dynamics of carbon black filled elastomeric material under static and dynamic load are examined by means of simultaneous dielectric and dynamic-mechanical analysis at room temperature. The experiments are performed on styrene butadiene rubber (SBR) samples filled with carbon black well above the dielectric percolation threshold. By increasing the mechanical load, a decrease in the conductivity is found due to continuous mechanical damage to the filler network structure, which prevents the transport of charge carriers through the sample via the carbon black network. The Cole-Cole equation is applied to fit the experimental data. The resulting fit-parameters show different load dependence. The mechanical damage to the filler network makes the relaxation processes broader and leads to higher relaxation times, whereby the relaxation strength increases. This has been attributed to an increase in the correlation length of the filler network with increasing load.
KW - Coupled measurement techniques
KW - Dynamics of filler network and structural change
KW - Relaxation behavior using Cole-Cole equations
UR - http://www.scopus.com/inward/record.url?scp=85100079304&partnerID=8YFLogxK
U2 - 10.1016/j.polymer.2021.123413
DO - 10.1016/j.polymer.2021.123413
M3 - Article
AN - SCOPUS:85100079304
VL - 215
JO - POLYMER
JF - POLYMER
SN - 0032-3861
M1 - 123413
ER -