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    • Efficacy of hierarchical pore structure in enhancing the tribological and recyclable smart lubrication performance of porous polyimide
    Authors: Hongwei, Ruan; Yaoming, Zhang; Fuzhi, Song;  Advisor: -;  Co-Author: - (2022)

    Herein, a porous oil-containing material with hierarchical pore structure was successfully prepared through microtexturing large pores on the surface of porous polyimide (PPI) with single-level small pores. Compared to the conventional oil-containing material, the hierarchically porous oil-containing material exhibited high oil-content, and retained excellent mechanical properties and high oil-retention because of the synergistic effects of large pores and small pores. Furthermore, the lubricant stored in the hierarchically porous polyimide could release to the interface under thermal-and-mechano-stimuli, and the released lubricant could be reabsorbed into the hierarchically porous po...