Abstract
Effect of hydrogenation on the styrenebutadiene rubber (SBR) in terms of the mechanochemical wear behavior was studied focusing on the mechanisms of the mechanochemical reactions during the wear process. The wear test performed in the air and in a nitrogen gas atmosphere indicated that the oxygen molecules accelerated the mechanochemical wear. Oxidation and molecular chain scission during the wear process in the presence of oxygen was proved by Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy and Gel Permeation Chromatography (GPC). The comparison of the wear test results and the analysis of wear particles for the SBR and hydrogenated SBR (H-SBR) compounds indicated that the H-SBR was less sensitive to the mechanochemical reaction, even in the presence of oxygen.
| Translated title of the contribution | Effect of molecular structure on the mechanochemical wear behavior of hydrogenated and conventional sbr rubbers |
|---|---|
| Original language | German |
| Pages (from-to) | 56-61 |
| Number of pages | 6 |
| Journal | KGK Kautschuk Gummi Kunststoffe |
| Volume | 74 |
| Issue number | 1 |
| Publication status | Published - 2021 Jan |
Keywords
- Hydrogenated styrene-butadiene-rubber
- Mechanochemical wear
- Oxidation
ASJC Scopus subject areas
- Mechanical Engineering
- Polymers and Plastics
- Industrial and Manufacturing Engineering
- Materials Chemistry