Composite calcium-sulfonate-based tetrapolyurea lubricating grease and preparation method thereof
A technology of composite calcium sulfonate-based tetrapolyurea grease and grease, which is applied in lubricating compositions, petroleum industry, thickeners, etc., can solve the problems of little difference in extreme pressure and anti-wear properties, and achieve stable product quality , good extreme pressure and anti-wear properties, simple preparation process
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Embodiment 1
[0046] Raw material components: super high base value calcium sulfonate (total base value 400mgKOH / g, 30kg); 150BS (15kg); dodecylbenzenesulfonic acid (2.8kg); acetic acid (0.56kg); Ca(OH) 2 (1.8kg); 12-hydroxystearic acid (2kg); boric acid (2.32kg); octadecylamine (1.08kg); ethylenediamine (0.12kg); MDI (1kg); 500SN (33kg); Diisooctyldiphenylamine (0.2 kg).
[0047] Add 30kg of super high alkali value calcium sulfonate with a total alkali value of 400mgKOH / g and 15kg of calcium sulfonate with a kinematic viscosity of 31mm at 100°C in a volume of 110L with heating, stirring, circulation and cooling. 2 / s HVI150BS lubricating base oil, stir, heat up to 80°C, keep the temperature for 10 minutes; add 2.8kg of dodecylbenzenesulfonic acid, control the temperature at about 80°C, stir for 10 minutes; add 0.56kg of acetic acid and the weight of acetic acid 4 times the aqueous solution, stir for 10 minutes; raise the temperature to 85 ° C, keep the temperature for 90 minutes, the mate...
Embodiment 2
[0052] Raw material components: ultra-high base value calcium sulfonate (total base value 420mgKOH / g, 30kg); 150BS (15kg); dodecylbenzenesulfonic acid (2.8kg); acetic acid (0.56kg); Ca(OH) 2 (1.8kg); 12-hydroxystearic acid (2kg); boric acid (2.32kg); octadecylamine (1.08kg); ethylenediamine (0.12kg); MDI (1kg); 500SN (33kg); Diisooctyldiphenylamine (0.2 kg).
[0053] Prepare ultra-high base value calcium sulfonate-based tetrapolyurea grease by the method of example 1, the difference is that the total base value of the ultra-high base value calcium sulfonate used is 420mgKOH / g, the performance data of the grease finished product obtained See Table 1.
Embodiment 3
[0055] Raw material components: super high base value calcium sulfonate (total base value 400mgKOH / g, 30kg); 150BS (15kg); dodecylbenzenesulfonic acid (2.8kg); acetic acid (0.56kg); Ca(OH) 2 (1.8kg); 12-hydroxystearic acid (2kg); boric acid (2.32kg); dodecylamine (0.88kg); ethylenediamine (0.14kg); MDI (1.18kg); 500SN (33kg); - Diisooctyldiphenylamine (0.2 kg).
[0056] The ultra-high base number composite calcium sulfonate-based tetrapolyurea grease was prepared according to the method of Example 1, except that the fatty amine used was dodecylamine, and the performance data of the obtained grease finished product are shown in Table 1.
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