On the study of cucurbit[6]uril and 4-tert-butylcalix[6]arene as multifunctional lubricant additives. (11th February 2020)

• Record Type: Journal Article
• Authors: Pandey, Shubham; Sharma, Pragati R.; Soni, Vineet Kumar; Choudhary, Ganpat; Sharma, Rakesh K.
• Is Part Of: New journal of chemistry. Volume 44:Number 8(2020)
• Page Start: 3425
• Page End: 3433
• Publication Date: 2020-02-11
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj00191k
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Cucurbit[6]uril and 4- tert -butylcalix[6]arene are found to be efficient multifunctional lubricant additives. Abstract : The current study describes cucurbit[6]uril and 4- tert -butylcalix[6]arene as high-performance multifunctional additives for polyol lubricant base oils. Cucurbit[6]uril is a macrocyclic compound with an aliphatic core, while 4- tert -butylcalix[6]arene has an aromatic core. The tribological properties of cucurbit[6]uril and 4- tert -butylcalix[6]arene in terms of the friction coefficient and average wear scar diameter were evaluated by the four-ball test (ASTM D4172). The antioxidant properties of these additives were assessed via a universal oxidation test (IP-306) and anticorrosion study by standard ASTM D664. Of the two additives, cucurbit[6]uril shows great promise for applications in industrial areas, maintains excellent tribological ability and exhibits a better load-bearing tribofilm as per morphologies observed by scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy.