| Autor: |
Pandey, Shubham, Sharma, Pragati R., Soni, Vineet Kumar, Choudhary, Ganpat, Sharma, Rakesh K. |
| Předmět: |
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| Zdroj: |
New Journal of Chemistry; 2/28/2020, Vol. 44 Issue 8, p3425-3433, 9p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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