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首页> 外文期刊>Tribology International >Two-dimension layered nanomaterial as lubricant additives: Covalent organic frameworks beyond oxide graphene and reduced oxide graphene
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Two-dimension layered nanomaterial as lubricant additives: Covalent organic frameworks beyond oxide graphene and reduced oxide graphene

机译：两维层纳米材料作为润滑剂添加剂：共价有机骨架之外的氧化石墨烯和还原氧化物石墨烯

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摘要

Two-dimension graphene-like covalent-organic frameworks (GCF) nano-sheets were successfully fabricated to evaluate the tribological behavior as lubricant additive in comparison to GO and rGO in PAO 10 oil. The exploration shows that conjugate system of GCF brings p-d feedback coordination to metal ions created by exoelectron, promoting the formation and stability of adsorbed film. The mechanical strength of covalent bond structure in-plane ensures carrying capacity and durability, and the ultrathin layered feature reduces shear stress due to slide effect. Eventually, the excellent reducing friction (up to 53.5%) and anti-wear (up to 95.4%) were achieved at an ultralow dosage of 0.008 wt%. By contrast, dissociation of C-O linkages of rGO and GO induced by tribo-stress and tribo-heat deteriorates its stability and durability.
机译：成功制造了两维石墨烯类共价有机框架（GCF）纳米片，以评价润滑剂添加剂与PAO 10油中的润滑剂添加剂相比。 该勘探表明，GCF的共轭系统将P-D反馈协调与Exoelectron产生的金属离子产生，促进吸附膜的形成和稳定性。 共价键结构的机械强度在面内确保承载能力和耐久性，并且超薄分层特征由于滑动效应而降低剪切应力。 最终，在0.008wt％的超低剂量下实现优异的减少摩擦（高达53.5％）和抗磨（高达95.4％）。 相比之下，RGO的C-O键和通过摩擦力和摩擦热诱导的C-O键的解离使其稳定性和耐用性劣化。

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