摘要
脲基润滑脂是一种以矿油为基础油、以异氰酸酯与有机胺合成的聚脲为稠化剂的润滑脂。利用电子显微镜(SEM)、红外光谱 (FT-IR)和差热分析 (DTA)研究了它的内部结构。在脲基润滑脂的制备中 ,观察到了从反应开始经历升温膨化最终到反应结束过程中的内部结构变化 ,并判断出脲基润滑脂分子间是以氢键连接的。同时 ,考察了脲基润滑脂内部结构对滴点的影响。
The process of producing diurea grease was explored by mass spectroscopy(MS) and Fourier transform infrared spectroscope(FT IR).The change of diurea grease structure with increasing container temperature was studied by scanning electron microscope(SEM).Changes in the fibre of diurea grease were related to dropping point.Hydrogen bonding was found among diurea molecules by using FT IR and the amount of hydrogen bonding increased in a range of temperature.Hydrogen bonding forced diurea molecules to be arranged in order and a stable structure was formed at last.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2000年第4期38-42,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
关键词
脲基润滑脂
结构
反应机理
石油产品
diurea grease
hydrogen bonding
mass spectra
electron microscope
infrared spectra
