Modern lubricant antioxidants have developed into complex multifunctional systems. In heavy-duty diesel engine oil, antioxidants need to be precisely combined with dispersants and anti-wear agents to form a "protective network". The latest research has found that certain metal organic framework materials, as antioxidant carriers, can achieve sustained release of antioxidant components, allowing lubricating oil to maintain stable total alkali value and viscosity index throughout a service life of up to 50000 kilometers.
The popularization of electric vehicles has put forward new requirements for anti oxidant agents. The lubricating oil of motor bearings needs to resist the special oxidation path under the action of electromagnetic fields; The battery coolant requires the antioxidant to remain stable and non-conductive in an electric field. In response to these demands, fluorinated antioxidants and ionic liquid stabilizers have emerged, which not only have excellent antioxidant properties, but also possess unique electrochemical stability.
Antioxidants in intelligent lubrication systems are more forward-looking. Researchers introduce fluorescent responsive molecular fragments into antioxidant structures, which emit optical signals when the antioxidant is consumed to a critical point, reminding the system to replenish or replace lubricating oil in a timely manner. This "self reporting" function has been piloted in high-value industrial gearboxes, achieving a transition from regular maintenance to on-demand maintenance.
