Thermoplastic-elastomer-containing complex aluminum-based lubricating grease composition and preparation method thereof

Abstract

The invention provides a thermoplastic-elastomer-containing complex aluminum-based lubricating grease composition and a preparation method thereof. The lubricating grease composition is prepared from the following components in parts by mass: 1-5 parts of thermoplastic elastomer, 5-15 parts of complex aluminum thickener and 80-94 parts of base oil. The preparation method comprises the following steps: adding benzoic acid and stearic acid into 80% of base oil, and uniformly stirring; when the oil temperature is 90-100 DEG C, adding aluminum isopropoxide tripolymer to carry out saponification until isopropanol in the material is completely released; adding a thermoplastic elastomer, and heating to 110-120 DEG C while stirring until the thermoplastic elastomer is completely dissolved; continuing heating the product to 190-220 DEG C, and adding the rest of base oil. The thermoplastic-elastomer-containing complex aluminum-based lubricating grease enhances the adhesiveness to metals, enhances the high-temperature colloid stability and reduces the high-temperature loss under the condition of no additive, and is suitable for use under high-temperature severe conditions.

Description

technical field

[0001] The invention relates to a lubricant, specifically a composite aluminum-based grease composition containing a thermoplastic elastomer and a preparation method thereof. Background technique

[0002] With the rapid development of metallurgy, mining, cement and other industries, there are more and more large-scale high-temperature equipment, so the requirements for the high-temperature characteristics of lubricating grease are getting higher and higher. There are many types of lubricating greases that can be used in high temperature conditions, including polyurea grease, calcium sulfonate grease, lithium complex grease, aluminum complex grease, etc. However, high temperature equipment generally adopts a centralized grease supply system, so for Grease pumpability requirements are high. In terms of pumpability, aluminum complex grease has an absolute lead over other greases. As a recognized high-temperature grease, composite aluminum-based grease has a hi...

Images