蓖麻油用作喷气燃料润滑剂的润滑性及润滑机制  

Lubricity and Lubricating Mechanism of Castor Oil as Lubricity Improver of Jet Fuel

作　　者：李进[1] 陈国需[1] 胡泽祥[2] 赵立涛[1] 杜鹏飞[1] 

机构地区：[1]后勤工程学院油料应用与管理工程系,重庆401311 [2]海军后勤技术装备研究所,北京100072

出　　处：《润滑与密封》2015年第8期17-21,共5页Lubrication Engineering

摘　　要：利用红外光谱仪分析蓖麻油结构特征,采用高频往复试验机HFRR考察蓖麻油在喷气燃料中的摩擦学性能,利用SEM及EDS能谱仪对蓖麻油润滑下的钢球磨斑形貌和表面组成进行分析,并探讨其润滑机制。结果表明,喷气燃料对蓖麻油具有较好的感受性,蓖麻油在喷气燃料中具有一定润滑作用,其作用机制可能是蓖麻酸先物理吸附在金属表面上,形成一层物理吸附膜,随着蓖麻油添加量的增加,蓖麻油开始化学吸附在金属表面上,形成了一层含氧的化学保护膜,起到了抗磨效果。The castor oil was characterized using Infrared spectrometer and its tribological properties as anti-wear addi- tive in jet fuel were evaluated using the High Frequency reciprocating rig （HFRR）.The morphologies and elemental distri- butions of the worn steel surface lubricated by castor oil were analyzed by means of scanning electron microscopy and EDS for discussing its lubricating mechanism.The results show that the jet fuel shows a good sensitivity to castor oil, and castor acid contributes to improve the lubricity of jet fuel.The anti-wear mechanism of castor oil can be concluded that castor acid is adsorbed on the metal surface physically at first, while a chemical-adsorbing film of containing oxygen is formed at a mass addition of castor oil, resulting in a good lubricating effect.

关 键 词：蓖麻油 喷气燃料 润滑机制 抗磨剂 

分 类 号：TE626.3[石油与天然气工程—油气加工工程] TH117.2[机械工程—机械设计及理论]