Organic friction modifier and method for reducing friction coefficient of low-viscosity lubricating oil
A friction modifier and friction coefficient technology, used in lubricating compositions, additives, petroleum industry, etc., can solve the problems of low friction reduction coefficient, poor effect, environmental impact, etc., to reduce friction coefficient, improve anti-friction performance, The effect of reducing friction and wear
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Embodiment 1
[0021] Synthesis of Polyetheramine D230 Dibasic Amide and Its Antifriction and Antiwear Properties.
[0022] Concrete reaction process is as follows:
[0023] Dissolve 15.0 g of polyetheramine D230 and 14.5 g of triethylamine in 300 mL of dichloromethane, add 21.3 g of octanoyl chloride dropwise under ice bath, remove the ice bath after the addition, and react at room temperature for 24 h. Add 300ml of water to the reaction bottle, separate the organic phase, wash the organic phase with 200 ml of water three times and dry with anhydrous sodium sulfate, evaporate the solvent under reduced pressure to obtain 28 g of polyetheramine D230 dibasic amide derivatives. IR (ATR): ν = 3286.2, 3072.4, 2957.2, 2926.8, 2857.6, 1819.2, 1642.2, 1544.6, 1455.9, 1374.1, 1269.1, 1110.3, 1027.1, 9529.1, 628.19 cm, -1 .
[0024] The prepared polyetheramine D230 dibasic amide was added to PAO4 in an amount of 0.5 wt%, heated to 60 °C, and stirred for 30 min.
[0025] Test the four-ball wear scar...
Embodiment 2
[0029] Synthesis of Polyetheramine D400 Dibasic Amide and Its Antifriction and Antiwear Properties.
[0030] Concrete reaction process is as follows:
[0031] Dissolve 20.0 g of polyetheramine D400 and 11.1 g of triethylamine in 200 mL of dichloromethane, add 16.3 g of octanoyl chloride dropwise under ice-cooling, remove the ice-bath after the addition, and react at room temperature for 24 h. Add 200 ml of water to the reaction bottle, separate the organic phase, wash the organic phase with 200 ml of water three times and dry with anhydrous sodium sulfate, evaporate the solvent under reduced pressure to obtain 30 g of polyetheramine D400 dibasic amide derivatives. IR (ATR): ν = 3288.7, 3072.0, 2964.3, 2927.5, 2859.0, 1819.0, 1760.5,1643.2, 1544.2, 1455.9, 1373.5, 1345.7, 1297.0, 1269.9, 1107.6, 1021.4,928.0, 837.4, 733.7, 701.2, 578.5, 532.1 cm -1 .
[0032] The prepared polyetheramine D400 dibasic amide was added to PAO4 in an amount of 0.5 wt%, heated to 60 °C, and stirre...
Embodiment 3
[0037] Synthesis of polyetheramine D2000 dibasic amides and their synergistic friction reduction properties with organomolybdenum friction modifiers.
[0038] Concrete reaction process is as follows:
[0039] Dissolve 5.0 g of polyetheramine D2000 and 0.76 g of triethylamine in 100 mL of dichloromethane, add 0.82 g of octanoyl chloride dropwise under ice bath, remove the ice bath after the addition, and react at room temperature for 12 h. 100ml of water was added to the reaction bottle, and the organic phase was separated. The organic phase was washed three times with 50ml of water and dried with anhydrous sodium sulfate. The solvent was evaporated under reduced pressure to obtain 4.9 g of polyetheramine D2000 dibasic amide derivatives. IR (ATR): ν = 3313.6, 2969.2, 2930.1, 2868.7, 1819.2, 1759.3, 1649.4, 1534.1, 1455.1, 1373.0, 1345.0, 1298.2, 1238.6, 1104.9, 1015.7, 927.2 cm -1 .
[0040] The prepared polyetheramine D2000 dibasic amide was added to PAO4 in an amount of 0.5...
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