| 1 | Performance and Selection of Pour Point Depressants显示文摘When temperature of paraffinic mineral oil base stocks is decreased belowcloud point,waxy hydrocarbonscome out of solution and growinto plates and needles wax crystalsforming a three-di mensional networkthat totallyi m-mobilizes the oil.Addition of a properlyselected PPD will provide a verylarge enhancement of low-temperature perfor-mance of the oil at verylowconcentrations.Howtoselect a right PPDfor your formulations are discussedinthis paper. | Christian Neveu Phil Hutchinson Alex Tsay Nick Gu | 2005 | 润滑油2005，20，5： | 0 |
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