Lubricating oil anti-wear additive based on fewer-layer graphene nanoplatelets and preparation method thereof
A graphene micro-sheet, lubricating oil technology, applied in the directions of additives, petroleum industry, lubricating compositions, etc., can solve the problems of effective weight reduction, condensation, precipitation, inability to lubricate and protect equipment, and achieve easy precipitation, improve lubrication and Effects of antiwear and extreme pressure properties, good stability and precipitation resistance
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[0015] A kind of lubricating oil anti-wear additive based on few-layer graphene microplate, it is made up of the raw material of following percentage by weight: few-layer graphene microplate 0.0001-5%, wetting agent 0.001-5%, emulsifier 0.0-0.5%, Dispersant 3-5%, detergent 3-5%, pour point depressant 1-2.5%, and the balance is base oil.
[0016] The number of layers of the few-layer graphene microflakes is between 10-30 layers, and the thickness of the few-layer graphene microflakes is 1-10 nanometers.
[0017] In the few-layer graphene microflakes, the particle size thickness of 99.5% of the few-layer graphene microflakes is less than 5 nanometers, and the particle size thickness of the remaining 5% of the few-layer graphene microchips is less than 10 nanometers.
[0018] The wetting agent is petroleum ether, the emulsifier is sorbitan fatty acid ester, the dispersant is sodium tripolyphosphate, the detergent is calcium alkyl salicylate, and the pour point depressant is Poly...
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