Abstract
A series of highly branched polyethylene (BPE) were prepared and evaluated in a Group I base oil as potential viscosity and friction modifiers. The performance of these BPEs supports the expected dual functionality. Changes in polarity, topology, and molecular weight of the BPEs showed significant effects on the lubricants’ performance with respect to viscosity index and friction reduction. This study provides scientific insights into polymer design for future lubricant development activities.
| Original language | English |
|---|---|
| Pages (from-to) | 52-55 |
| Number of pages | 4 |
| Journal | Reactive and Functional Polymers |
| Volume | 109 |
| DOIs | |
| State | Published - Dec 1 2016 |
Funding
This project was funded by the Office of Vehicle Technology (VT) of the U.S. Department of Energy (US DOE), (under contract No. 27573 ). PNNL is proudly operated by Battelle for the U.S. DOE (under contract DE_AC06–76RLO 1830 ). The authors kindly acknowledge contributions from Ewa Bardasz (Energetics) in the form of insightful technical discussions as well as from JoRuetta Ellington (Evonik) for technical assistance and for providing benchmark materials. We thank Afton Chemical for generously donating base oils for screening purposes.
Keywords
- Friction modifier
- Highly-branched polyethylene
- Lubricant additive
- Viscosity index improver
- Viscosity modifier