In situ preparation of multifunctional additives in water

Water-based lubricating additives P4444BTA and N4444BTA were prepared in situ in aqueous solution. The additives were found not only easy to be prepared, but also have excellent tribological properties. In addition to their significant tribological properties, these additives also show excellent corrosion resistant ability, which makes them multifunctional additives for water based lubricants.Evolution of the friction coefficients (a) and wear volume losses(b) for different samples on copper/steel friction pairs.273