Preparation of the viscosity index improvers SEP for lubricating oil and the study on its properties 润滑油用粘度指数(VI)改进剂SEP的制备及其性能研究
Testing methods for kinematic viscosity and calculating method for viscosity index of crude oil and petroleum products 原油及石油产动粘度试验方法及石油产品黏度指数计算方法
Viscosity index An arbitary scale used to show the relativemagnitude Of viscosity changes with temperature. 粘度指数(VI)表明粘度随温度变化相对程度的经验量值。
The viscosity index improver is highly resistant to mechanical strees, thus ensures effective lubrication and long oil life. 特别的黏度指数改进剂,能有效抵抗机械应力,从而有效地提供润滑及延长液压油的使用寿命。
Study on the quantitative analysis of engine oil viscosity index by two-dimensional near-infrared spectroscopy 二维近红外光谱定量分析内燃机油粘度指数(VI)性能的研究