Grease for calender and preparation method thereof
A technology of lubricating grease and calender, which is applied in the direction of lubricating composition, petroleum industry, thickener, etc., can solve the problems of high price, and achieve the effect of increasing refining temperature, excellent oxidation stability, and high dropping point
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Embodiment 1
[0027] The embodiment of the present invention provides a kind of lubricating grease specially used in calender, and it comprises according to the weight specific gravity of its raw material composition:
[0028] 6-10 parts of high molecular fatty acid, 3-5 parts of low molecular acid, 4-6 parts of lithium hydroxide, 2-3 parts of calcium hydroxide, 20-30 parts of water, 60-80 parts of base oil, 20-40 parts of base oil 0.2-0.5 parts of antioxidant A, 1.0-2.0 parts of antioxidant B, 0.5-1.0 parts of rust inhibitor, 0.5-1 part of extreme pressure and antiwear agent A, 1-3 parts of extreme pressure and antiwear agent parts, 5-15 parts of tackifier.
[0029] Wherein the high-molecular-weight fatty acid used in this embodiment is 12 hydroxystearic acid, and the low-molecular-weight acid is industrial salicylic acid. Base oil A is highly refined mineral oil 500N; said base oil B is high viscosity highly refined mineral oil 150BS. The antioxidant A is diphenylamine; the antioxidant ...
Embodiment 2
[0031] The present embodiment also provides a kind of preparation method that is specially used in the lubricating grease of calender, it comprises the following steps:
[0032] Provide at least the following raw materials according to the weight ratio of the composition:
[0033] 6-10 parts of high molecular fatty acid, 3-5 parts of low molecular acid, 4-6 parts of lithium hydroxide, 2-3 parts of calcium hydroxide, 20-30 parts of water, 60-80 parts of base oil, 20-40 parts of base oil 0.2-0.5 parts of antioxidant A, 1.0-2.0 parts of antioxidant B, 0.5-1.0 parts of rust inhibitor, 0.5-1 part of extreme pressure and antiwear agent A, 1-3 parts of extreme pressure and antiwear agent parts, 5-15 parts of tackifier;
[0034] (1) Put the base oil A into the saponification kettle according to the weight ratio, add all the high molecular fatty acids according to the formula ratio when the temperature is raised to 60-80° C., mix, and stir for 10-20 minutes;
[0035] (2) Calcium hydr...
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