纳米六方氮化硼负载离子液体润滑添加剂的摩擦学特性

制备了超声剥离的六方氮化硼负载油酸咪唑离子液体(OL-IL/h-BN)润滑添加剂，利用SEM、TEM、FTIR、TG及XRD等对其结构和形貌进行了表征。利用Zeta电位测试方法表征了其在聚乙二醇400中的分散性能，结果发现分散稳定性得到大幅提升。利用四球摩擦磨损试验机测试了摩擦学性能，结果显示减摩抗磨性能都优于h-BN。利用SEM和XPS对其磨斑表面形貌和成分进行了分析，XPS分析结果显示表面膜中含有化学吸附膜以及Fe₂O₃和B₂O₃等化学反应膜，这些膜的形成对减摩抗磨性能起到至关重要的作用。

Tribological performance of hexagonal boron nitride supported ionic liquid lubricant additives

A lubricating additive of ultrasonically exfoliated hexagonal boron nitride supported imidazole oleic acid ionic liquid (OL-IL/h-BN) was prepared, and the structure and morphology were characterized by SEM, TEM, FTIR, TG and XRD. The dispersion performance in polyethylene glycol 400 was tested by using Zeta potential test, and it was found that the dispersion stability was greatly improved. The tribological properties were tested using a four-ball machine, and the results showed that the friction-reducing and anti-wear properties were better than h-BN. The surface morphology and composition of the wear scars were analyzed by SEM and XPS. The XPS analysis results showed that the surface film contained chemical adsorption films and chemical reaction films such as Fe₂O₃ and B₂O₃. The formation of these films played an important role in reducing friction and wear resistance.