Super-low friction and wear
Fluorination and matched polar base oil yield higher oil content and retention than conventional porous polyimides, sustaining lubrication under harsh conditions.
Duan, Chunjian · Dongwei, Li · Jiawei, Gu · Gao, Chuanping · Zhang, Shengmao · Zhang, Pingyu · Jun, Xu · Wang, Chao · Wang, Tingmei · Wang, Qihua
Friction 2025
Oil content and retention higher than other porous polyimides with comparable pore sizes and porosities
Remarkably low friction and wear even under high FV values
PPIF-250 with PEG200 shows significantly improved oil content, retention, and long-term lubrication over other base oils
Wear rate (10⁻⁷ mm³/(N·m)) provided in tabular form in the paper