Lubricant and preparation method thereof
A lubricant and polyisobutylene technology, applied in the field of lubricants, can solve the problems of poor lubricating effect of lubricants, low ability to withstand high temperature or low temperature, etc., and achieve moderate viscosity, low cost, good high temperature or low temperature resistance Effect
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[0041] The invention provides a kind of preparation method of lubricant, comprises the following steps:
[0042] Heat polyisobutylene to 80-110°C. For example, it can be heated to 95°C first, add aviation kerosene and mix well, then add silicone oil, mix well and then add petrolatum, mix well and cool down to obtain lubricant, which can be cooled to room temperature and then sealed Preserve, can not add petrolatum in lubricant; Wherein, aviation kerosene and polyisobutene can be 10 weight parts, and the weight ratio of aviation kerosene and polyisobutylene can be (3-8):1, and silicone oil can be 2-5 weight Parts, petrolatum can be 0-2 parts by weight. In the preparation process, when selecting equipment, you can choose a furnace with a temperature of more than 20L and a heating temperature of 200°C, and the stirring rod can be made of steel or wood.
[0043] Optionally, the number average molecular weight of polyisobutylene can be 4000-60000, and the molecular weight of silic...
Embodiment 1
[0048] Heat polyisobutylene to 80°C, add aviation kerosene, mix well, add silicone oil, mix well, then add petrolatum, mix well, cool down to obtain lubricant; the lubricant in this embodiment can be applied to high latitude regions;
[0049] Among them, aviation kerosene and polyisobutene are 10 parts by weight, the weight ratio of aviation kerosene and polyisobutene is 3:1, silicone oil is 2 parts by weight, petrolatum is 1 part by weight, the number average molecular weight of polyisobutene is 4000-60000, silicone oil The molecular weight is 1800-2200.
Embodiment 2
[0051] Heat polyisobutylene to 95°C, add aviation kerosene, mix well, add silicone oil, mix well, then add petrolatum, mix well, cool down to obtain lubricant; the lubricant in this embodiment can be applied to low latitude regions;
[0052] Among them, aviation kerosene and polyisobutene are 10 parts by weight, the weight ratio of aviation kerosene and polyisobutene is 5:1, silicone oil is 3 parts by weight, petrolatum is 2 parts by weight, the number average molecular weight of polyisobutene is 4000-60000, silicone oil The molecular weight is 1800-2200.
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