Analysis and comparison of tribological performance of fatty acid-based lubricant additives with phosphorus and sulfur

Autor: Haiyang Ding, Xiaohua Yang, Lina Xu, Mei Li, Shouhai Li, Sujing Zhang, Jianling Xia
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Bioresources and Bioproducts, Vol 5, Iss 2, Pp 134-142 (2020)
Druh dokumentu: article
ISSN: 2369-9698
DOI: 10.1016/j.jobab.2020.04.007
Popis: Two environmentally friendly, water-based lubricant additives (phosphorus-containing ricinoleic acid (PRA) and sulfur-containing ricinoleic acid (SRA)) were prepared. The lubrication performance of the additives in a water-based lubricant was tested using a four-ball tribotester. The stainless steel surface was analyzed by using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The additives reduced the coefficient of friction (COF) value, wear scar diameter (WSD) and improved the extreme pressure (PB) value. Water-based fluids containing the PRA exhibited lower COF, WSD, and PB values than the SRA. The good tribological performances of the PRA and SRA were attributed to the synergistic action of long aliphatic chains and highly active phosphorus and sulfur elements.
Databáze: Directory of Open Access Journals