A kind of graphene lubricating oil for robot and its preparation method and application
A technology of graphene and lubricating oil, which is applied in the field of lubricating oil, can solve the problems of uneven dispersion of nanomaterials and easily corroded metals, and achieve excellent anti-wear and anti-friction performance and thermal stability, stable product performance, and simple preparation process Effect
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Embodiment 1
[0025] A kind of graphene lubricating oil for robot, preparation method comprises the following steps:
[0026] S1. Add 2 parts of zinc oxide, 1 part of silicon dioxide and 1.5 parts of stearic acid to 50 parts of ethanol aqueous solution with a volume ratio of 1:1, heat to 40°C, ultrasonically disperse and stir vigorously for 30 minutes to make the mixture uniform. Obtain mixed solution A;
[0027] S2. Add 1 part of oleic acid to 20 parts of ethanol solvent, after ultrasonic dissolution, add 0.05 part of graphene and 0.5 part of polyvinylpyrrolidone, continue ultrasonic dispersion for 30 minutes to mix evenly, and obtain mixed solution B.
[0028] S3. Transfer the mixed solution A and B to a reaction vessel with a stirring device and a condensing reflux device, raise the temperature to 65°C, turn on the stirring and condensing reflux device, and continue the reaction for 5 hours; after the reaction is completed, naturally cool to room temperature and cool down Keep stirring....
Embodiment 2
[0031] A kind of graphene lubricating oil for robot, preparation method comprises the following steps:
[0032] S1. Add 2.4 parts of zinc oxide, 1.2 parts of silicon dioxide and 1.8 parts of stearic acid to 50 parts of ethanol aqueous solution with a volume ratio of 1:1, heat to 40°C, ultrasonically disperse and stir vigorously for 30 minutes to make the mixture uniform. Mixture A was obtained.
[0033] S2. Add 1.6 parts of oleic acid to 20 parts of ethanol solvent, after ultrasonic dissolution, add 0.08 parts of graphene and 0.8 parts of polyvinylpyrrolidone, continue ultrasonic dispersion for 30 minutes, make the mixture uniform, and obtain the mixed solution B.
[0034] S3. Transfer the mixed solution A and B to a reaction vessel with a stirring device and a condensing reflux device, raise the temperature to 70°C, turn on the stirring and condensing reflux device, and continue the reaction for 5 hours; after the reaction is completed, naturally cool to room temperature and ...
Embodiment 3
[0037] A kind of graphene lubricating oil for robot, preparation method comprises the following steps:
[0038] S1. Add 2.6 parts of zinc oxide, 1.3 parts of silicon dioxide and 2.0 parts of stearic acid into 50 parts of ethanol aqueous solution with a volume ratio of 1:1, heat to 40°C, ultrasonically disperse and stir vigorously for 30 minutes to make the mixture uniform. Mixture A was obtained.
[0039] S2. Add 1.6 parts of oleic acid to 20 parts of ethanol solvent, after ultrasonic dissolution, add 0.08 parts of graphene and 0.8 parts of polyvinylpyrrolidone, continue ultrasonic dispersion for 30 minutes, make the mixture uniform, and obtain the mixed solution B.
[0040]S3. Transfer the mixed solution A and B to a reaction vessel with a stirring device and a condensing reflux device, raise the temperature to 70°C, turn on the stirring and condensing reflux device, and continue the reaction for 5 hours; after the reaction is completed, naturally cool to room temperature and...
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