柴油机油分散性能模拟评定方法的研究

此项工程旨在开发出一种能评价柴油机油烟炱分散性能的试验方法。我们采用与烟炱相类似的炭黑作为试验原料,在高速搅拌下将炭黑分散在油中,通过粘度变化来考察油品的分散性能。研究表明此方法可以较好地将同一质量级别但分散性能不同、不同质量级别的柴油机油及不同分散剂的烟炱分散性能区分开。在今后高档柴油机油的配方研制过程中可以应用此试验方法来考察分散剂,优化配方,以通过Mack T-8发动机试验。

THE RESEARCH ON THE BENCH TEST FOR EVALUATING THE DISPERSANCY OF DIESEL ENGINE OIL

The aim of this paper is to develop a kind of bench test for evaluating the soot dispersancy of diesel engine oil.Taking the carbon black similar to soot as the test material,the oil's dispersancy is evaluated through the oil's viscosity change after blending the carbon black into the oil under high speed.The test result shows that the dispersancy can be differentiated among the same or different grades diesel engine oils and the different dispersants by this test method.It can be uses as a simulator for developing the high grade diesel engine oil to pass the Mack T-8 engine test for the future.