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Issue 8, 2020
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On the study of cucurbit[6]uril and 4-tert-butylcalix[6]arene as multifunctional lubricant additives

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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.

Graphical abstract: On the study of cucurbit[6]uril and 4-tert-butylcalix[6]arene as multifunctional lubricant additives

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Supplementary files

Article information


Submitted
13 Jan 2020
Accepted
27 Jan 2020
First published
27 Jan 2020

New J. Chem., 2020,44, 3425-3433
Article type
Paper

On the study of cucurbit[6]uril and 4-tert-butylcalix[6]arene as multifunctional lubricant additives

S. Pandey, P. R. Sharma, V. K. Soni, G. Choudhary and R. K. Sharma, New J. Chem., 2020, 44, 3425
DOI: 10.1039/D0NJ00191K

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