化工新型材料

化工新型材料 ›› 2017, Vol. 45 ›› Issue (9) : 127-129.

科学研究

Al₂O₃/TiO₂纳米复合粉体的摩擦学性能研究

^1,2

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Tribological property of Al₂O₃/TiO₂ nano-composite

Hou Xianjun^1,2, Chen Bicheng^1,2, Cai Qingping^1,2, Mohamed Kamal Ahmed Ali^1,2, Peng Fuming^1,2

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文章历史 +

Received		Published
2016-05-25		2017-10-19
Issue Date	Revised Date
2017-10-19	2016-05-25

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摘要

将油酸和硅烷偶联剂(KH-560)修饰的Al₂O₃/TiO₂纳米复合粉体添加到基础油中,用可见分光光度计表征纳米粒子在润滑油中的分散稳定性,在自主设计的摩擦磨损试验机上考察Al₂O₃/TiO₂纳米复合粉体作为润滑油添加剂的抗磨减摩性能,用3D表面轮廓仪、扫描电镜和电子能谱分析试样表面形貌与成分变化及纳米粒子的作用机理。结果表明:在0.25% Al₂O₃/TiO₂纳米复合粉体(Al₂O₃:TiO₂=1:1)润滑油中添加2% KH-560时,具有最好的分散稳定性;在润滑油中添加0.25% Al₂O₃/TiO₂纳米复合粉体(Al₂O₃:TiO₂=1:1)时抗磨减摩效果最佳,在载荷500N、转速1100r/min时,摩擦系数和磨损量相比基础油时分别降低25.4%和43.8%。

Abstract

Al₂O₃/TiO₂ lubricating oil systems were prepared by adding oleic acid and KH-560 with different content,and the dispersion of nano-composite in base oil was analyzed by visible spectrophotometer.The anti-wear and friction reducing behaviors of nano lubricating oils were investigated on the independently designed friction and wear tester,meanwhile the morphology and mechanism of nano-composite were analyzed by 3D surface profiler,SEM and EDS.The results showed that nano-composite had best dispersion when adding 2% KH-560 in 0.25% Al₂O₃/TiO₂ lubricating oil systems.The nano lubricating oil has best anti-wear and friction reducing properties when adding 0.25% Al₂O₃/TiO₂ (Al₂O₃:TiO₂=1:1) in base oil,the friction coefficient and wear decreased 25.4% and 43.8% respectively compared with base oil in the condition of 500N and 1100r/min.

关键词

硅烷偶联剂 / Al₂O₃/TiO₂纳米复合粉体 / 抗磨减摩 / 自修复作用

Key words

KH-560 / Al₂O₃/TiO₂ nano-composite / anti-wear and friction reducing / self-repairing effect

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Al₂O₃/TiO₂纳米复合粉体的摩擦学性能研究[J]. 化工新型材料, 2017, 45(9): 127-129 DOI:

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