化学
季戊四醇
粘度指数
支化(高分子化学)
粘度
相对粘度
有机化学
还原粘度
大气温度范围
固有粘度
热力学
熔点
化学工程
特性粘度
基础油
复合材料
聚合物
材料科学
物理
阻燃剂
工程类
扫描电子显微镜
作者
Vladimir V. Emel'ianov,E. L. Krasnykh,А. Б. Соколов
标识
DOI:10.1016/j.fluid.2024.114074
摘要
One of the main characteristics of lubricants is the viscosity index, which shows the dependence of oil viscosity on temperature. The higher the viscosity index, the better the lubricating properties of the oil. Esters of various polyols, in particular pentaerythritol, are very effective in this direction. This work examines a wide range of high-purity pentaerythritol esters of 14 compounds of varying degrees of branching and studies the temperature dependences of kinematic viscosity in the temperature range from melting temperatures to 150°C. Based on the obtained data, the values of viscosity indexes were calculated, and the contribution of the carboxylic acid structure to the viscosity properties was also considered.
科研通智能强力驱动
Strongly Powered by AbleSci AI