摘要
在催化剂存在下,通过酯化反应制备了含二正丁基二硫代氨基甲酸结构的有机硼酸酯(SNBC)。通过四球磨损试验机考察SNBC在100N基础油中的摩擦学性能,采用扫描电子显微镜(SEM)和能谱仪(EDS)分别分析磨损表面形貌和磨斑表面元素组成,通过水解稳定性实验测定硼酸酯的水解稳定性。结果表明,合成的硼酸酯(SNBC)具有较好的水解稳定性,同时SNBC作为润滑油添加剂与二烷基二硫代磷酸锌(ZDDP)相比具有较好的减摩性能,在低添加量下能显著提高基础油的极压性能。SEM分析表明,SNBC能有效减轻钢球摩擦副表面的擦伤和磨损。
A novel borate ester containing n-butyl dithiocarbamate structure （SNBC） is synthesized from the etherification reaction in the presence of Catalyst. The tribological properties of SNBC as lubricant additive in 100N base stock are evaluated using a four-ball machine. The surface topography and elemental analysis of the abraded steel are characterized through scanning electron microscope （SEM） and energy dispersive spectrometer （EDS）, respectively. The hydrolytic stability of SNBC is studied. The results show that the SNBC possess good hydrolytic stability. In addition, SNBC as a lubricating oil additive, compared with zinc dialkyl dithiophosphates （noted as ZDDP）, exhibits excellent friction-reducing property and can significantly improve the extreme pressure performance of base oil at a low concentration. SEM analysis shows that SNBC can effectively alleviate the scratch and abrasion of the surface of the steel balls compared with base oil.
出处
《现代化工》
CAS
CSCD
北大核心
2014年第11期73-75,77,共4页
Modern Chemical Industry
关键词
硼酸酯
润滑油
添加剂
制备
性能
borate ester
lubricate
additive
preparation
property
