Details
| Original language | English |
|---|---|
| Title of host publication | Advances in Polymer Science |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 317-344 |
| Number of pages | 28 |
| Publication status | Published - 3 Sept 2022 |
| Externally published | Yes |
Publication series
| Name | Advances in Polymer Science |
|---|---|
| Volume | 289 |
| ISSN (Print) | 0065-3195 |
| ISSN (electronic) | 1436-5030 |
Abstract
Modern rubber materials face high demands in terms of oxidation stability as well as thermal resistance and, in some cases, enhanced oil resistance. At the same time, their mechanical properties have to maintain a high level. High-performance synthetic rubbers with highly sophisticated properties – like nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR) and peroxide-crosslinked ethylene – propylene – diene rubber (EPDM) – are thus becoming more and more important. Nevertheless, irreversible aging processes limit lifetime and result in the failure of these elastomer materials. Knowledge about chemical aging mechanisms, kinetics and the weak elements in the polymer chain and in the chemical network are fundamental to understanding and predicting lifetime as well as in arriving at appropriate measures for stabilizing the polymer matrix. Alongside the polymer’s microstructure, other determining parameters are temperature, exposure to oxygen, and its diffusion into the bulk in competition to reaction speed, which is responsible for the spatial changing of the material from the surface inward. Investigations by means of selected methods like nanoindentation, FT-IR spectroscopy, chemiluminescence, and physical testing in combination with artificial aging are used to describe quantitatively the mechanistic role of the polymer’s microstructure and of crosslinking during thermal-oxidative aging.
Keywords
- Characterization, EPDM, HNBR, NBR, Reaction mechanism, Residual peroxide, Thermal-oxidative degradation
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
- Organic Chemistry
- Materials Science(all)
- Polymers and Plastics
Cite this
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Advances in Polymer Science. Springer Science and Business Media Deutschland GmbH, 2022. p. 317-344 (Advances in Polymer Science; Vol. 289).
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Mechanistic and Kinetic Studies on Degradation Processes of Rubber Types
AU - Giese, Ulrich
AU - Kautz, Stephanie
AU - Schwarzendahl, Corinna
AU - Thust, Sabine
PY - 2022/9/3
Y1 - 2022/9/3
N2 - Modern rubber materials face high demands in terms of oxidation stability as well as thermal resistance and, in some cases, enhanced oil resistance. At the same time, their mechanical properties have to maintain a high level. High-performance synthetic rubbers with highly sophisticated properties – like nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR) and peroxide-crosslinked ethylene – propylene – diene rubber (EPDM) – are thus becoming more and more important. Nevertheless, irreversible aging processes limit lifetime and result in the failure of these elastomer materials. Knowledge about chemical aging mechanisms, kinetics and the weak elements in the polymer chain and in the chemical network are fundamental to understanding and predicting lifetime as well as in arriving at appropriate measures for stabilizing the polymer matrix. Alongside the polymer’s microstructure, other determining parameters are temperature, exposure to oxygen, and its diffusion into the bulk in competition to reaction speed, which is responsible for the spatial changing of the material from the surface inward. Investigations by means of selected methods like nanoindentation, FT-IR spectroscopy, chemiluminescence, and physical testing in combination with artificial aging are used to describe quantitatively the mechanistic role of the polymer’s microstructure and of crosslinking during thermal-oxidative aging.
AB - Modern rubber materials face high demands in terms of oxidation stability as well as thermal resistance and, in some cases, enhanced oil resistance. At the same time, their mechanical properties have to maintain a high level. High-performance synthetic rubbers with highly sophisticated properties – like nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR) and peroxide-crosslinked ethylene – propylene – diene rubber (EPDM) – are thus becoming more and more important. Nevertheless, irreversible aging processes limit lifetime and result in the failure of these elastomer materials. Knowledge about chemical aging mechanisms, kinetics and the weak elements in the polymer chain and in the chemical network are fundamental to understanding and predicting lifetime as well as in arriving at appropriate measures for stabilizing the polymer matrix. Alongside the polymer’s microstructure, other determining parameters are temperature, exposure to oxygen, and its diffusion into the bulk in competition to reaction speed, which is responsible for the spatial changing of the material from the surface inward. Investigations by means of selected methods like nanoindentation, FT-IR spectroscopy, chemiluminescence, and physical testing in combination with artificial aging are used to describe quantitatively the mechanistic role of the polymer’s microstructure and of crosslinking during thermal-oxidative aging.
KW - Characterization
KW - EPDM
KW - HNBR
KW - NBR
KW - Reaction mechanism
KW - Residual peroxide
KW - Thermal-oxidative degradation
UR - http://www.scopus.com/inward/record.url?scp=85140234685&partnerID=8YFLogxK
U2 - 10.1007/12_2022_127
DO - 10.1007/12_2022_127
M3 - Contribution to book/anthology
AN - SCOPUS:85140234685
T3 - Advances in Polymer Science
SP - 317
EP - 344
BT - Advances in Polymer Science
PB - Springer Science and Business Media Deutschland GmbH
ER -