Improvement of lubricating oils characters by using novel additives

Ahmed El-Mekabaty

Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt

E-mail: a_el_m11@yahoo.com

Accepted 29 June, 2012

Abstract

In this paper, we synthesized a new series of compounds 2-20 bearing both aryl sulfonate, benzoxazinone and quinazolone moities in the purpose to act as antioxidant and anticorrosion additives for a local gasoline lube oil. Afterwards, the effectiveness of these new compounds was evaluated using different techniques. The highest antioxidant and anticorrosion activities were obtained with compounds, 8b, 8c, 11, 13, 17, 18 and 19. The optimum concentration recommended for these new additives to be effective was found to be 0.1g for 1L of oil especially for compounds 11 and 19. Moreover, measurements the surface tension, UV and thermal stability has been studied.

Keywords: Benzoxazinone, Quinazolinone, Tetrazole, thermal stability; antioxidant additives; anticorrosive additives.