Abstract The solid lubricant MoS2 was used as the reinforcement filler for the Polyamide12 material for the additive manufacturing process – selective laser sintering. The tribological and mechanical properties of the laser sintered PA12/MoS2 and PA12 were investigated by the linear reciprocating ball-on-flat wear and impact tests. Results show that by incorporating the MoS2 filler into the PA12 matrix, the impact properties was improved. The coefficient of friction and wear rate of the laser sintered PA12/MoS2 were reduced significantly. The worn surface formed in the wear test was shallow and smoother for the PA12/MoS2, where only mild wear occurred. The XPS testing suggested the involvement of the mechanical-chemical reaction, which resulted the decomposing of the MoS2 and the enhancement of the wear properties of the PA12/MoS2.

中文翻译：

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用于选择性激光烧结的二硫化钼增强聚酰胺 12 的摩擦学和机械性能

摘要 固体润滑剂二硫化钼被用作增材制造工艺——选择性激光烧结的聚酰胺12材料的增强填料。通过线性往复式球对平面磨损和冲击试验研究了激光烧结 PA12/MoS2 和 PA12 的摩擦学和机械性能。结果表明，通过将 MoS2 填料掺入 PA12 基体，冲击性能得到改善。激光烧结PA12/MoS2的摩擦系数和磨损率显着降低。对于 PA12/MoS2，磨损试验中形成的磨损表面较浅且更光滑，仅发生轻度磨损。XPS 测试表明机械-化学反应的参与，这导致了 MoS2 的分解和 PA12/MoS2 的磨损性能的增强。