Traction Characteristics of Siloxanes with Aryl and Cyclohexyl Branches |
| |
| Authors: | Email author" target="_blank">Thomas?ZolperEmail author Zhi?Li Manfred?Jungk Andreas?Stammer Herbert?Stoegbauer Tobin?Marks Yip-Wah?Chung Qian?Wang |
| |
| Affiliation: | 1.Department of Mechanical Engineering,Northwestern University,Evanston,USA;2.Department of Chemistry,Northwestern University,Evanston,USA;3.Dow Corning GmbH,Weisbaden,Germany;4.Department of Materials Science and Engineering,Northwestern University,Evanston,USA |
| |
| Abstract: | The molecular structures, rheological properties, and friction coefficients of several new siloxane-based polymers were studied to explore their traction characteristics. The molecular structures including branch content were established by nuclear magnetic resonance spectroscopy, while the molecular mass distributions were determined by gel permeation chromatography. Density, viscosity, elastohydrodynamic film formation, and friction were investigated over a temperature range of 303–398 K. Film thickness and friction measurements were studied under the conditions that are representative of boundary, mixed, and full-film lubrication regimes, aiming at maximizing traction performance and temperature stability by simultaneous optimization of the size and content of ring-shaped branch structures. This study provides quantitative insight into the effect of siloxane molecular structure on the tribological performance for traction drive applications such as continuously variable transmissions. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
