A composition of organic hetero compounds as an antioxidant and antiwear additive for mineral lubricating oils
| Autor: | G. N. Kuz'mina, R. V. Bartko, Oleg P. Parenago, A. G. Sipatrov, A. V. Zolotov, V. A. Zolotov |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Antioxidant
General Chemical Engineering medicine.medical_treatment Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Zinc Hexadecane Sulfur chemistry.chemical_compound Fuel Technology chemistry Geochemistry and Petrology Thiuram disulfide medicine Organic chemistry Ammonium Antiwear additive Mineral oil medicine.drug |
| Zdroj: | Petroleum Chemistry. 53:262-266 |
| ISSN: | 1555-6239 0965-5441 |
| DOI: | 10.1134/s0965544113040142 |
| Popis: | As a multifunctional additive exhibiting antioxidant and antiwear activity for mineral lubricating oil, a composition of ammonium dialkyldithiophosphate (ADTP) with tetraalkyl thiuram disulfide (TDS) has been proposed, which provides lower sulfated ash, phosphorus, and sulfur contents compared with the traditional additive zinc dialkyldithiophosphate used for the same functions. Ammonium dialkyldithiophosphates bearing various alkyl radicals have been synthesized using structurally different amines. The antioxidant efficiency of ADTP samples has been shown by monitoring the formation and degradation of hydroperoxides in a hexadecane medium as a model of mineral oil. The tribological parameters of these compounds have been determined under boundary lubrication conditions. |
| Databáze: | OpenAIRE |
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