Tribology Lubricants and Lubrication 2012 Part 12

Tham khảo tài liệu 'tribology lubricants and lubrication 2012 part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Lubricating Oil Additives 267 Multifunctional nature of additives Rizvi 2009 A number of additives perform more than one function. Zinc dialkyl dithiophosphates known mainly for their antiwear action are also potent oxidation and corrosion inhibitors. Styrene-ester polymers and functionalized polymethacrylates and can act as viscosity modifiers dispersants and pour point depressants. Basic sulfonates in addition to acting as detergents perform as rust and corrosion inhibitors. They do so by forming protective surface films and by neutralizing acids that arise from fuel combustion lubricant oxidation and additive degradation. 2. Future work Using nanotechnology in preparation of lube oil additives synthesis of overbased nanodetergent . Production of stable efficient nanodetergent system depends on development and new generation of surfactant. These nano-particles are relatively insensitive to temperature. In spite of the increasing temperature loads and other requirements imposed on lubricants mineral oils are likely to continue to be employed in the foreseeable future for the majority of automotive industrial and marine applications. However in the aviation field synthetic lubricants are extensively used and there are a growing number of critical automotive industrial and marine application where the use of synthetic lubricants van be justified on a cost performance basis. 3. References Alun L. Ken . Randy . and Joseph . Large-scale dispersant leaching and effectiveness experiments with oils on calm water Marine Pollution Bulletin 60 244254 2010 . Battez . Viesca . Gonzalez R. Blanco D. Asedegbega E. and Osorio A. Friction reduction properties of a CuO nanolubricant used as lubricant for a NiCrBSi coating Wear 268 325-328 2010 . Bharambe . Designing maleic anhydride-a-olifin copolymeric combs as wax crystal growth nucleators Fuel Processing Technology 91 997-1004 2010 . Chen B. Sun Y. Fang J. Wang J. and Wu Jiang Effect of cold flow .

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