| Performance and Selection of Pour Point Depressants |
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| 引用本文： | Christian Neveu,Phil Hutchinson,Alex Tsay,Nick Gu. Performance and Selection of Pour Point Depressants[J]. 润滑油, 2005, 20(5): 26-29 |
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| 作者姓名： | Christian Neveu Phil Hutchinson Alex Tsay Nick Gu |
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| 作者单位： | Degussa-RohMax Oil Additives，Degussa-RohMax Oil Additives，Degussa-RohMax Oil Additives，Degussa-RohMax Oil Additives |
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| 摘 要： | 1 IntroductionParaffinic mineral oil base stocks contain waxy hydro-carbons that come out of solution when temperature de-creases.The lower the molecular weight of the paraffinand the higher its level of branching,thelower the precipi-tation temperature.Initially,tiny crystals are for medwhich diffract light making the solution hazy to the nakedeye.The temperature at which this occurs is called thecloud point.When temperature is further lowered,addi-tional wax precipitates,the crystals grow i…
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| 关 键 词： | 润滑油 PPD 温度 蜡状物 |
| 文章编号： | 1002-3119(2005)02-0026-04 |
| 修稿时间： | 2005-03-23 |
Performance and Selection of Pour Point Depressants |
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| Christian Neveu,Phil Hutchinson,Alex Tsay,Nick Gu. Performance and Selection of Pour Point Depressants[J]. Lubricating Oil, 2005, 20(5): 26-29 |
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| Authors: | Christian Neveu Phil Hutchinson Alex Tsay Nick Gu |
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| Affiliation: | Degussa-RohMax Oil Additives |
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| Abstract: | 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. |
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| Keywords: | PPD PAMA MRV TP-1 GF-4 gelation index |
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