Perfluorinated High Temperature Grease
A grease, high temperature technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of easy damage, difficult to use, affecting the service life and so on
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Embodiment 1
[0018] (1) Raw material: base oil 45kg, thickener 15kg, additive 40kg. in:
[0019] Base oil: a mixture of 30kg perfluoropolyether oil and 15kg perfluorocarbon oil;
[0020] Thickener: a mixture of polytetrafluoroethylene 5kg, silicon dioxide 2kg, titanium dioxide 2kg, molybdenum disulfide 2kg, rare earth fluoride 2kg, nano-graphite 2kg;
[0021] Additive: a mixture of 25kg of phosphocyanide and 15kg of antimony trioxide.
[0022] The kinematic viscosity of the base oil at 40°C is 100-600m 2 / s, the molecular weight is between 4000 and 10000.
[0023] The fineness of the thickener is 10nm~0.1μm.
[0024] (2) Preparation: first add 18kg of the required base oil into the stirred reactor, raise the temperature to 90°C, then add 15kg of the required thickener, raise the temperature to 110°C, stir for 2 hours, then slowly add the remaining base oil, and cool down to Stir at 80°C for 1 hour, then cool down to 50°C and add 40kg of additives, stir evenly and take it out, spread t...
Embodiment 2
[0026] (1) Raw material: base oil 60kg, thickener 35kg, additive 5kg. in:
[0027] Base oil: a mixture of 30kg perfluoroester oil and 15kg perfluorocarbon oil;
[0028] Thickener: a mixture of 20kg perfluoroethylene propylene copolymer, 4kg fluorocarbon wax, 2kg carbon black, 2kg rare earth fluoride, 2kg nano graphite, 2kg fluorinated graphite, and 3kg fluorinated resin;
[0029] Additive: a mixture of sodium sebacate 4kg and sodium suberate 1kg.
[0030] The kinematic viscosity of the base oil at 40°C is 100-600m 2 / s, the molecular weight is between 4000 and 10000.
[0031] The fineness of the thickener is 10nm~0.1μm.
[0032] (2) Preparation: First, add 24kg of the required base oil into the stirred reactor, raise the temperature to 90°C, then add 35kg of the required thickener, raise the temperature to 120°C, stir for 2 hours, then slowly add the remaining base oil, and cool down to Stir at 80°C for 1 hour, then lower the temperature to 50°C, add 5kg of additives, sti...
Embodiment 3
[0034] (1) Raw material: base oil 75kg, thickener 5kg, additive 20kg. in:
[0035] Base oil: perfluoropolyether oil 75kg;
[0036] Thickener: PTFE 2kg, fluorinated resin 3kg;
[0037] Additive: a mixture of phosphocyanide 10kg, sodium sebacate 5kg, and sodium suberate 5kg.
[0038] The kinematic viscosity of the base oil at 40°C is 100-600m 2 / s, the molecular weight is between 4000 and 10000.
[0039] The fineness of the thickener is 10nm~0.1μm.
[0040] (2) Preparation: First, add 30kg of the required base oil into the stirred reactor, raise the temperature to 90°C, then add 5kg of the required thickener, raise the temperature to 130°C, stir for 2 hours, then slowly add the remaining base oil, and cool down to Stir at 80°C for 1 hour, then cool down to 50°C and add 20kg of additives, stir evenly and take it out, spread the taken out material on a clean aluminum plate with a thickness of 4mm, put it in an oven and bake it at 200°C for 4 hours, then cool to room temperatu...
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