A study of thermal and antiwear properties of the oil compositions involving a condensed alkylphenol detergent additive

A. S. Medzhibovskiy, A. Kolokolnikov, S.N. Zibrova
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Abstract

The current paper presents further studies of the oils’ operational properties (detergent properties mostly) of those oils which contain a highly alkaline condensed alkylphenol detergent additive. In this text thermal and antiwear properties of oils containing various detergents were discussed. Thermal properties of different oil compositions were evaluated when heated in a Q-derivatograph (under a dynamic mode). Weight loss of the oil sample due to its evaporation and the temperature of the end of evaporation were estimated. It was revealed that the most stable is sample 3, containing K-38 additive. This sample had the highest evaporation start temperature (275°C compared to 269, 286, 262°C of the samples 4,1,2 respectively) as well as the highest end of evaporation temperature (579°C compared to 558°C (samples 1 and 4) and 555°C of sample 2). The antiwear properties were studied on a friction machine (roller-block type). The test results have shown a high efficiency of the oils containing a new highly alkaline K-38 additive.
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含缩合烷基酚洗涤剂添加剂的油组合物的热性能和抗磨性能的研究
本文进一步研究了含高碱性浓缩烷基酚洗涤剂添加剂的油品的操作性能(主要是洗涤剂性能)。本文讨论了含各种洗涤剂的油品的热性能和抗磨性能。在q衍生仪(动态模式下)加热时,评估了不同油组分的热性能。估计了油样蒸发后的失重量和蒸发结束时的温度。结果表明,含K-38添加剂的样品3最稳定。该样品具有最高的蒸发起始温度(275℃,而样品4、1、2的蒸发起始温度分别为269、286、262℃)和最高的蒸发结束温度(579℃,而样品1和4的蒸发起始温度为558℃,样品2的蒸发结束温度为555℃)。在摩擦机上(滚轮式)研究了其抗磨性能。试验结果表明,新型高碱性K-38添加剂对油品的收率较高。
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