广州白云长城聚脲润滑脂-壳牌透平油销售啦聚脲基润滑脂（简称聚脲脂）是以含有两个或多个脲基的有机化合物为稠化剂的润滑脂。它具有良好的氧化安定性、热稳定性、机械安定性、胶体安定性和抗水淋性，特别适用于高温、高负荷、宽速度范围和与不良介质接触的润滑场合。聚脲稠化剂不含金属离子，避免了高温下基础油氧化的金属催化作用，这是其具备优异高温抗氧化性能的关键[4]。稠化剂的结构（如烷基亚磷酸酯类、脂肪族羟基化合物、聚脲类）与润滑脂的黏度、机械稳定性、耐高温性等性能密切相关[3]。聚脲基润滑脂具有优良的使用性能，适用于连铸机等关键设备的润滑，能改善连铸机轴承的润滑状况并延长设备寿命Polyurea based grease (abbreviated as polyurea grease) is a lubricating grease that uses organic compounds containing two or more urea groups as thickeners. It has good oxidation stability, thermal stability, mechanical stability, colloid stability, and water resistance, especially suitable for lubrication occasions with high temperature, high load, wide speed range, and contact with poor media. Polyurea thickener does not contain metal ions, which avoids the metal catalytic effect of base oil oxidation at high temperatures, which is the key to its excellent high-temperature oxidation resistance [4]. The structure of thickeners (such as alkyl phosphites, aliphatic hydroxyl compounds, polyurea) is closely related to the viscosity, mechanical stability, high temperature resistance, and other properties of lubricating grease [3]. Polyurea based grease has excellent performance and is suitable for lubricating key equipment such as continuous casting machines. It can improve the lubrication condition of continuous casting machine bearings and extend equipment life