Flame-retardant lubricating grease composition and preparation method thereof

Abstract

The invention discloses flame-retardant lubricating grease composition and a preparation method thereof. The flame-retardant lubricating grease composition is prepared from components in parts by weight as follows: 70-85 parts of base oil, 10-14 parts of dialkenyl succinimide, 3.2-7.6 parts of 4,4-dimethyl imidazolidine, 3-5 parts of zinc borate, 2-4 parts of a flame retardant, 2-3 parts of toluene diisocynate, 0.5-3 parts of sodium dodecyl sulfate, 1.8-2 parts of graphite and 0.5-1 part of an antioxidant. The preparation method of the flame-retardant lubricating grease composition comprises steps as follows: (1) weighing 70-85 parts of the base oil, 10-14 parts of the dialkenyl succinimide, 3.2-7.6 parts of the 4,4-dimethyl imidazolidine and 0.5-3 parts of the sodium dodecyl sulfate, and evenly stirring the components at the temperature of 80 DEG C; (2) adding 3-5 parts of the zinc borate, 2-3 parts of the toluene diisocynate, 1.8-2 parts of the graphite, 2-4 parts of the flame retardant and 0.5-1 part of the antioxidant to a product of the Step (1), placing the mixture into a reaction kettle, heating the mixture to the temperature of 56-66 DEG C under the pressure of 0.5-1.2 MPa for reaction for 0.5-1 hour, and performing homogenization and degassing to obtain the flame-retardant lubricating grease composition.

Description

technical field [0001] The invention belongs to the field of lubricating grease, in particular to a flame-retardant lubricating grease composition and a preparation method thereof. Background technique [0002] Grease is a viscous lubricant, generally composed of base oil, thickener and additives. Grease is a stable fixed or semi-solid product that can adhere well to the surface of friction parts of mechanical equipment, thereby Play the role of lubrication and anti-scratch. [0003] In equipment such as ironmaking and casting that require high-temperature operation, the lubricating oil of the bearings or gears not only needs to have good lubricating performance against high temperature, but also due to the continuous addition of lubricating grease during the use of such equipment, it will cause excessive Accumulation, when subjected to high temperature baking, splashing will occur, and fire will occur, which will cause a fire. Existing patents mainly add alkali metals or ...

AI Technical Summary

Problems solved by technology

[0003] In equipment such as ironmaking and casting that require high-temperature operation, the lubricating oil of the bearings or gears not only needs to have good lubricating performance against high temperature, but also due to the continuous addition of lubricating grease during the use of such equipment, it will cause excessive Accumulation, when subjected to high temperature baking, splashing will occur, and fire will occur, which will cause a fire

Existing patents mainly add alkali metals or alkali metal oxides to play a flame retardant effect, but because the additives are in powder form, long-term use of this type of grease will affect the normal operation of metal parts