SN/GF-5汽油机油研发

使用国产添加剂和基础油开发了具有自主知识产权、满足SN/GF-5规格的汽油机油,通过模拟评定试验筛选了汽油机油的复合抗氧剂和复合减摩剂组合以及和抗磨剂二烷基二硫代磷酸锌(ZDDP)结构.结果表明:长链二苯胺型抗氧剂和酚酯型抗氧剂质量比为3:7的复合抗氧剂可大幅提高油品的抗氧化性能;酰胺型摩擦改进剂和氨基甲酸钼复合使用可...

DEVELOPMENT OF SN GF-5 GASOLINE ENGINE OIL

The gasoline engine oil with independent intellectual property rights to meet SN/GF-5 specification was developed by using domestic additives and base oil. The combination of complex antioxidant, complex antifriction agent and anti-wear agent zinc dialkyldithiophosphate(ZDDP) for gasoline engine oil was selected by simulation test. The results show that the composite antioxidants with the mass ratio of long chain diphenylamine antioxidants and phenol ester antioxidants of 3:7 can greatly improve the antioxidant performance of the lubricating oil. The friction-reducing performance of the oil can be improved obviously by the combination of the amide friction modifier and the molybdenum carbamate, and the wear-resisting performance of the di-sec-alkyl ZDDP is the best among the three structures. The developed gasoline engine oil has passed the engine tests of program ⅢG, ⅢGA, ⅢGB, ⅣA, ⅤG, ⅥD, Ⅷ, and each performances has reached the SN/GF-5 specification.