Lanzhou R&D Center Makes New Progress in Research on Boron-Containing Multifunctional Additives

As people's environmental awareness grows and environmental regulations become more complete, conventional lubricant load additives are facing ever greater challenges, and developing environmentally friendly, high-performance multifunctional additives is of great significance for the upgrading of lubricant products. Kunlun Lubricant's Lanzhou R&D Center focuses on the development of high-grade lubricant products and is committed to developing low-phosphorus, ashless, multifunctional (extreme pressure, anti-wear, friction-reducing, antioxidant and anti-corrosion) environmentally friendly lubricant additives. It has conducted relatively in-depth research on this frontier topic and achieved considerable progress. Heterocyclic compounds and their derivatives have compact molecular structures and good thermal stability, and their molecular structures contain different functional groups and active elements, giving them broad application prospects as multifunctional lubricant additives. In addition, organic borate esters have incomparable advantages as lubricant additives, such as environmental friendliness, multifunctionality, lower treat rates and high thermal stability. Through molecular design, researchers introduced a borate ester functional group into a benzothiazolidine disulfide structure to obtain a borate ester derivative containing a dithiobenzothiazole group. Because its structure contains benzothiazole, disulfide and borate ester groups at the same time, the compound exhibits excellent anti-wear, friction-reducing and load-carrying performance in base oils, along with good antioxidant and anti-corrosion capability, making it a potential high-performance lubricant additive. This research was also supported by the 973 Program of the Ministry of Science and Technology.