| abstract |
The invention provides a sealing grease for shield machine, belonging to the technical field of shield tail sealing grease, comprising the following raw materials by mass: 80-90 parts of base oil; 10-20 parts of thickener; and 0.1-3 parts of modifier The thickener does not contain one or more of benzoic acid and lithium-based grease; the modifier does not contain one or more of nano ceria and isobutylene sulfide. The sealing grease for shield machine provided by the invention has the characteristics of good friction reduction, good wear resistance, high dropping point and environmental friendliness. The raw materials used in the environmentally friendly sealing grease for the shield machine can be degraded, and no toxic substances are generated during production and use. The invention provides a preparation method of sealing grease for shield machine. |