A kind of lubricating grease composition and its preparation method and application
A grease composition and polymer technology, applied in the field of grease, can solve the problems of poor adhesion, poor structural elasticity, high soap content, etc., and achieve good flame retardancy, excellent service life, and excellent high temperature performance
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Embodiment 1
[0045] Limited swelling organic thickener BASF PA6: 10%;
[0046] Infinitely swellable polymer thickener SEPS: 3%;
[0047] Base oil Croda priolube 3970 and ng PAO 10: 84%;
[0048]Antioxidant phenothiazine: 2%;
[0049] Rust inhibitor Zinc naphthenate: 1%.
[0050] The Croda priolube 3970 base oil (v 100 =5mm 2 / s) 403g and SEPS (Baling Petrochemical YH-4020, Mn=1.0×10 5 , PDI=1.30) 36g was heated to 30°C, mixed and stirred for 30 minutes, so that the polymer thickener was fully soaked and swelled by oil absorption. ng PAO 10 base oil (v 100 =10mm 2 / s) 202g with BASF PA6 (AM, D 50 =1μm) 120g was mixed and stirred at room temperature for 30 minutes, so that all the organic thickeners were infiltrated and swelled by oil absorption. The two mixtures were mixed uniformly, the temperature was slowly raised to 50°C, and the temperature was stirred for 30 minutes. Then continue to heat up to 130°C, and react at constant temperature for 1 hour. The remaining PAO 10 base o...
Embodiment 2
[0052] Limited swelling organic thickener MOLIKE DPU: 20%;
[0053] Infinite swelling polymer thickener BASF PIB B80: 5%;
[0054] Base oil orchid refining PAO 20 and King KR-019 alkylnaphthalene: 68%;
[0055] Antioxidant 2,6-di-tert-butyl-p-cresol: 4%;
[0056] Rust inhibitor Sodium heavy alkyl benzene sulfonate: 3%.
[0057] Refinery to PAO 20 base oil (v 100 =20mm 2 / s) 292g, King KR-019 alkyl naphthalene base oil (v 100 =20mm 2 / s) 238g and BASF PIB B80 (Mn=3.0×10 5 , PDI=2.00) 65g was heated to 40°C, mixed and stirred for 40 minutes, so that the polymer thickener was fully soaked and swelled by oil absorption. Combine King KR-019 alkyl naphthalene base oil 177g with MOLIKE DPU (D 50 =7μm) 260g was mixed and stirred at room temperature for 40 minutes, so that all the organic thickeners were infiltrated and swelled by oil absorption. The two mixtures were mixed uniformly, the temperature was slowly raised to 60°C, and the temperature was stirred for 40 minutes. T...
Embodiment 3
[0059] Limited swelling organic thickener ALGOFLON L203F PTFE: 15%;
[0060] Infinitely swellable polymer thickener lubrizol 7306: 4%;
[0061] Base oil hatcol 2372 and Hongcheng PAO 15: 76%;
[0062] Antioxidant Diisooctyldiphenylamine: 3%;
[0063] Rust inhibitor Barium dinonylnaphthalene sulfonate: 2%.
[0064] Will hatcol 2372 base oil (v 100 =15mm 2 / s) 532g with lubrizol 7306
[0065] (SEPS, Mn=1.5×10 5 , PDI=1.20) 56g was heated to 35° C., mixed and stirred for 35 minutes, so that the polymer thickener was fully infiltrated and swelled by oil absorption. Will Hongcheng PAO 15 base oil (v 100 =15mm 2 / s)319g with ALGOFLON L203FPTFE(D 50 =3μm) 210g was mixed and stirred at room temperature for 35 minutes, so that all the organic thickeners were infiltrated and swelled by oil absorption. The two mixtures were mixed uniformly, the temperature was slowly raised to 55°C, and the temperature was stirred for 35 minutes.
[0066] Then continue to heat up to 135°C, and...
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