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Efficiency of Dodecenylsuccinic Amide of n‐Phenyl‐p‐Phenylenediammine as Novel Multifunctional Lubricant Additive for Deposit Control and Lubricity
Journal of Surfactants and Detergents ( IF 1.6 ) Pub Date : 2020-09-15 , DOI: 10.1002/jsde.12456
Ekta Faujdar 1, 2 , Himani Negi 1, 2 , Aman Bhonsle 1, 3 , Neeraj Atray 3 , Raj K. Singh 2
Affiliation  

A novel multifunctional amide additive N‐phenyl‐p‐phenylenediamine‐dodecenylsuccinic anhydride (PPA‐DDSA) was synthesized by the reaction of DDSA and N‐phenyl‐p‐phenylenediamine. The successful synthesis of amide additive was confirmed by various analytical techniques like Fourier Transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, and thermogravimetric analysis. Performance of prepared additive was evaluated as multifunctional additive for anti‐oxidant, detergent dispersant, anti‐corrosion, and lubricity properties. The MAK‐500® mineral base oil and synthetic polyol base oil were used as a reference. The antioxidant property was evaluated by using the 2,2‐diphenyl‐1‐picrylhydrazyl method, which revealed that PPA‐DDSA was better antioxidant than PPA and gallic acid but less effective than butylated hydroxytoluene. PPA‐DDSA was found to be excellent detergent dispersant in polyol in comparison to the MAK‐500. At 4000 ppm additive concentration, the coking value is reduced to 0.0205 g from the value of 0.0840 g for blank polyol while the % dispersancy increased to 40.67 from 20.00 for polyol base oil. The anti‐wear property was observed to be better in the MAK‐500 while the antifriction potential was found to be better in polyol base oil. The average wear scar is reduced from 881 to 550 μM at 2000 ppm concentration in MAK‐500 base oil, while at 3000 ppm PPA‐DDSA concentration, the average friction coefficient reduces to 0.0826 from 0.1276 for blank polyol.

中文翻译:

正苯基对苯二胺十二碳烯基琥珀酰胺作为新型多功能润滑剂添加剂的沉积控制和润滑效率

通过DDSA与N-苯基-对-苯二胺的反应合成了一种新型的多功能酰胺添加剂N-苯基-对-苯二胺-十二碳烯基琥珀酸酐(PPA-DDSA)。酰胺添加剂的成功合成已通过各种分析技术得到了证实,例如傅立叶变换红外光谱,核磁共振光谱和热重分析。所制备的添加剂的性能被评估为多功能添加剂,具有抗氧化剂,洗涤剂分散剂,防腐和润滑性能。MAK-500®矿物基础油和合成多元醇基础油被用作参考。通过使用2,2-二苯基-1-吡啶甲基肼基方法评估了抗氧化性能,结果表明PPA-DDSA的抗氧化性能优于PPA和没食子酸,但不如丁基化羟基甲苯有效。与MAK-500相比,PPA-DDSA被发现是多元醇中优异的洗涤剂分散剂。在添加剂浓度为4000 ppm时,焦化值从空白多元醇的0.0840 g的值降低到0.0205 g,而分散百分数从多元醇基础油的20.00的值提高到40.67。观察到MAK-500的抗磨性能更好,而多元醇基础油的抗磨性更好。在MAK-500基础油中浓度为2000 ppm时,平均磨损痕迹从881减少到550μM,而在PPA-DDSA浓度为3000 ppm时,空白多元醇的平均摩擦系数从0.1276降低至0.0826。空白多元醇为0840 g,而分散度百分比则从多元醇基础油的20.00增加至40.67。观察到MAK-500的抗磨性能更好,而多元醇基础油的抗磨性更好。在MAK-500基础油中浓度为2000 ppm时,平均磨损痕迹从881减少到550μM,而在PPA-DDSA浓度为3000 ppm时,空白多元醇的平均摩擦系数从0.1276降低至0.0826。空白多元醇为0840 g,而分散度百分比则从多元醇基础油的20.00增加至40.67。观察到MAK-500的抗磨性能更好,而多元醇基础油的抗磨性更好。在MAK-500基础油中浓度为2000 ppm时,平均磨损痕迹从881减少到550μM,而在PPA-DDSA浓度为3000 ppm时,空白多元醇的平均摩擦系数从0.1276降低至0.0826。
更新日期:2020-09-15
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