Bibliographic Details
| Title: |
Facile fabrication and tribological properties of self-lubricating polyurethane based on expanded graphite/paraffin for water lubricated bearings |
| Authors: |
Jiangbo Li, Wenli Zhang, Zijian Tang, Tao Hu, Xiaolei Li, Wei Wu, Chenhui Zhang |
| Source: |
Journal of Materials Research and Technology, Vol 33, Iss , Pp 9791-9801 (2024) |
| Publisher Information: |
Elsevier, 2024. |
| Publication Year: |
2024 |
| Collection: |
LCC:Mining engineering. Metallurgy |
| Subject Terms: |
Polyurethane, Expanded graphite/paraffin, Self-lubricating, Tribological properties, Mining engineering. Metallurgy, TN1-997 |
| More Details: |
To improve the tribological properties of polyurethane (PU) based water-lubricated bearings specifically under severe conditions, expanded graphite/paraffin (EG/paraffin) is synthesized as self-lubricating additives and incorporated into the polyurethane matrix. The tribological performance of the PU-EG/paraffin composites at dry and water-lubricated conditions is investigated systemically. Results show that the friction coefficient of PU-EG/paraffin composites can reach a minimum value of 0.18 and 0.08 under dry and water lubricating conditions, respectively, with a reduction of 77% and 62% compared to that of pure PU. Meanwhile, the wear rate of these composites also exhibits a significant decrease under both conditions. The wear surface morphology indicates that a lubricating film can be formed by paraffin or paraffin-water emulsion between the friction pairs, thereby significantly enhancing the lubrication state under dry and water lubricating conditions, respectively. The present work puts forward a practical and effective approach for manufacturing self-lubricating water-lubricated bearing materials. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2238-7854 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2238785424028357; https://doaj.org/toc/2238-7854 |
| DOI: |
10.1016/j.jmrt.2024.12.032 |
| Access URL: |
https://doaj.org/article/b9797b314c674f04984ba6d703b5d1ee |
| Accession Number: |
edsdoj.b9797b314c674f04984ba6d703b5d1ee |
| Database: |
Directory of Open Access Journals |
