Abstract
Molecular dynamics simulation is utilized to reveal the interaction and lubricating property of polyisobutylsuccinimide-polyamine (PIB-PAM) dispersant and phosphorus compound (PAE3) antioxidant in two traction systems (JP1E, JP1EC). The content ratio of PIB-PAM to PAE3 is changed. The static self-assembly of additives is observed, while PIB-PAM molecules with strongly intermolecular entanglement displays a suppressive effect on the molecular diffusion. In the shear process, the adsorption of base oil on surfaces shows a non-wall-slip friction state, and the increasing shear rate causes the adsorption film thinning and the friction coefficient rise. The strong intermolecular interaction in lubricating system induces high friction resistance. The fundamental insights into the interaction mechanism of different additives are helpful for improving lubricant research and development.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
