| abstract |
The invention discloses lubricating oil based on modified nano calcium carbonate, which is prepared from the following raw materials in parts by weight: 35-50 parts of modified nano calcium carbonate, 15-25 parts of a composite antiwear agent, 150-250 parts of phenyl silicone oil, 20-30 parts of liquid paraffin, 5-9 parts of phosphite ester, 0.5-1.5 parts of tween 20 and 1-3 parts of a silane coupling agent; the invention also discloses a preparation method of the lubricating oil based on the modified nano calcium carbonate; after metal friction, the modified nano silicon nitride is matched with the modified nano calcium carbonate and forms a protective film containing the modified nano calcium carbonate and the modified nano silicon nitride on the metal surface under the action of a composite colloid in the composite antiwear agent, so that friction and buffer pressure can be effectively reduced, and the protective film formed on the other hand has anti-corrosion and anti-rust properties so as to protect parts for a long time and prolong the service life of the parts, and cannot pollute the environment and protect the environment. |