Yao, Xinle published the artcile3D printing of PTFE-filled polyimide for programmable lubricating in the region where lubrication is needed, Safety of Trimethylolpropane triacrylate, the publication is Tribology International (2022), 107405, database is CAplus.
Three-dimensional (3D) target-region-lubrication printing of photosensitive polyimide (PSPI) filled with polytetrafluoroethylene (PTFE), i.e., PSPI-PTFE, with excellent tribol. properties for self-lubricating devices was realized by digital light processing of PSPI-PTFE ink and thermal post-treatment. The 3D-printed PSPI-PTFE composites exhibited the friction coefficients and wear rates sharply reduced by 88% and 98%, resp., and good mech. properties, thermal stability and interlayer bonding as well. Importantly, the surfaces with lubricating only in regions where needed were readily realized due to the layer-by-layer manufacturing manner of 3D printing. As proof-of-concept, a target-region-lubricating bearing was demonstrated successfully, which run stably with a speed ranged from 60 to 180 rpm/min, indicating that the 3D-printed PSPI-PTFE composites are suitable for fabricating devices with complex and special shapes.
Tribology International published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C6H10F3NO, Safety of Trimethylolpropane triacrylate.
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https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics