摩擦学
基础油
纳米颗粒
材料科学
化学工程
X射线光电子能谱
色散(光学)
摩擦系数
纳米技术
核化学
复合材料
化学
扫描电子显微镜
工程类
物理
光学
作者
Hongxia Ma,Wei Wu,Zeyun Wang
摘要
Abstract In this work, TiO 2 nanoparticles modified with octadecylamine and dodecyl mercaptan (DDM/ODA@PDA@TiO 2 NPs) are uesd to improve the tribological properties of the white oil. The DDM/ODA@PDA@TiO 2 NPs which are simply prepared by mussel inspired chemistry and the Michael addition reaction can be facilely dispersed in the white base oil. Tribological measurements showed that the dispersion of the white oil containing 3 wt% DDM/ODA@PDA@TiO 2 NPs displays significant reductions in the friction coefficient and wear scar diameter at room temperature and 75°C. Further XPS investigation shows that the favourable tribological properties of DDM/ODA@PDA@TiO 2 NPs are ascribed to the synergistic effect of tribofilm (Fe 2 O 3 , Fe 3 O 4 , FeS 2 , FeS and FeSO 4 ) and TiO 2 nanofluids.
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