Machine oil high-temperature-resistant precipitation antagonist and preparation process thereof

The invention relates to the technical field of chemical engineering, in particular to a machine oil high-temperature-resistant precipitation antagonist which comprises the following components in percentage by weight: 90-95% of base oil, 1-10% of an anticoagulant, 0.5-5% of an anti-aging agent, 0.5-1% of a dispersing agent, 0.2-1% of an accelerant, 0.2-0.5% of a surfactant and 0.5-1% of a pH regulator. The preparation process of the machine oil high-temperature-resistant precipitation antagonist comprises the following steps: S1, firstly, weighing powder raw materials of an anticoagulant, an anti-aging agent, a dispersing agent and an accelerant by using weighing equipment, and adding the powder raw materials into a solvent for preparation in advance; S2, adding the base oil agent into a reaction kettle, then sequentially adding the anticoagulant, the anti-aging agent, the dispersing agent, the accelerant and the surfactant, and stirring the materials to be uniform; and S3, adding a pH regulator into the sti