Lubricating grease compound additive and lubricating grease composition prepared from lubricating grease compound additive
A grease composition and compound additive technology, applied in the field of grease additives, can solve problems such as hindering organic extreme pressure agents and chemical protective films on the surface of friction pairs, and achieve stable anti-wear performance, excellent extreme pressure, and improved extreme pressure. performance effect
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[0026] Example 1
[0027] Preparation method of STAB-ZrP compound: according to the mass ratio of α-ZrP (Zr(HPO 4 ) 2 ·H 2 O): Distilled water (H 2O)=1 : 150 Weigh α-ZrP, after mixing, stir evenly at room temperature, and then according to the molar ratio of methylamine (CH 5 N): α-ZrP (Zr(HPO 4 ) 2 ·H 2 O) = 1: 1 ratio was added methylamine, stirred at room temperature for 24 hours to obtain methylamine pre-intercalated zirconium phosphate suspension; then according to the molar ratio STAB (C 21 H 46 BrN): α-ZrP (Zr(HPO 4 ) 2 ·H 2 O) = 1:1 STAB was weighed and added to the methylamine pre-intercalated α-ZrP suspension, stirred at room temperature for 24 hours, the product was centrifuged, washed with distilled water, dried at room temperature, and air-dried. The crystal structure was characterized by diffractometer (XRD), and the content of interlayer organic matter was characterized by elemental analysis of C, H, and N. The STAB-ZrP with the content of interlayer ...
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[0031] Example 2
[0032] Adopt the STAB-ZrP (STAB: 44.67 wt.%) prepared in embodiment 1;
[0033] The preparation of basic lithium-based grease is the same as that in Example 1;
[0034] 3.0 g of STAB-ZrP (STAB: 44.67 wt.%), 0.5 g of T746 and 2.0 g of BHT were added to 94.5 g of basic lithium-based grease as grease additives, and rolled for 3 times using a three-roll mill to make the additives in the basic lithium-based grease. The base grease was evenly mixed to obtain a lithium-based grease product (abbreviated as 3.0 wt.% STAB-ZrP (STAB: 44.67 wt.%) lithium-based grease containing 3.0 wt.% STAB-ZrP (STAB: 44.67 wt.%) fat).
[0035] The SRV-V friction and wear testing machine was used to characterize the anti-wear and anti-friction properties of the prepared grease products. The load was 200 N, the frequency was 50 Hz, the step size was 1 mm, the temperature was 80 °C, and the time was 30 min. See Table 1 for the data.
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[0036] Example 3
[0037] Adopt the STAB-ZrP (STAB: 44.67 wt.%) prepared in embodiment 1;
[0038] The preparation of basic lithium-based grease is the same as that in Example 1;
[0039] 5.0 g of STAB-ZrP (STAB: 44.67 wt.%), 1.0 g of T746 and 1.0 g of BHT were added to 93.0 g of basic lithium-based grease as grease additives, and rolled for 3 times using a three-roll mill to make the additives in the basic lithium-based grease. The base grease was evenly mixed to obtain a lithium-based grease product containing 5.0 wt.% STAB-ZrP (STAB: 44.67 wt.%) (abbreviated as 5.0 wt.% STAB-ZrP (STAB: 44.67 wt.%) lithium-based fat).
[0040] The SRV-V friction and wear testing machine was used to characterize the anti-wear and anti-friction properties of the prepared grease products. The frequency was 50 Hz, the step size was 1 mm, the temperature was 80 °C, and the time was 30 min. The data are shown in Tables 1 and 2.
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