【摘 要】
：
Sodium-ion-exchanged α-zirconium phosphate (Na-α-ZrP) was synthesized by using disodium hydrogen phosphate as the sodium source, which was an efficient ion exchange way. The tribological properties of Na-α-ZrP as an additive in lithium grease were investi
【机 构】
：
College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024
论文部分内容阅读
Sodium-ion-exchanged α-zirconium phosphate (Na-α-ZrP) was synthesized by using disodium hydrogen phosphate as the sodium source, which was an efficient ion exchange way. The tribological properties of Na-α-ZrP as an additive in lithium grease were investigated by a four-ball friction tester and a SRV tester, respectively. The synergistic effect of Na-α-ZrP with ZDDP was also studied. Results indicate that Na-α-ZrP can effectively improve the antiwear and friction-reducing properties of lithium grease. Combined with ZDDP, the grease demonstrated excellent anti-wear performance, especially under high loads. The possible wear mechanism was discussed by observing the worn surface using 3D optical profiler, scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), and X-ray photoelectron spectroscopy (XPS). The simple synthetic method and superior tribological performance make the Na-α-ZrP become a potential choice for lubricant additives.
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