Synergistic and antagonistic effects on oxidation stability of antioxidants in a synthetic ester based oil

被引：57
|
作者：
Duangkaewmanee, Sumittra [2 ]
Petsom, Amorn [1 ,2 ]
机构：
[1] Chulalongkorn Univ, Dept Chem, Fac Sci, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand
[2] Chulalongkorn Univ, Sci Program Petrochem, Fac Sci, Bangkok 10330, Thailand
来源：
TRIBOLOGY INTERNATIONAL | 2011年 / 44卷 / 03期
关键词：
Lubricant; Thermal stability; Tribology; Antioxidant;
D O I：
10.1016/j.triboint.2010.10.028
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Synergistic and antagonistic effects have been observed with the four sulfur-, phosphorus- and heavy metal-free antioxidants, hindered bis-phenol, octylated diphenylamine, octylated phenyl-alpha-naphthylamine and tolutriazole derivative, on the oxidation stability, thermal and physicochemical properties of dioctyl sebacate oil. The oxidation stability was evaluated using a rotary bomb oxidation tester. The results from isothermal and catalytic RBOT oxidation tests suggested that ODPA has an antagonistic effect on the OIT. The combination of HP:OPANA:TZ exhibited the highest and most synergistic antioxidant activity. Furthermore, synergism was observed in terms of both oxidation and thermal stabilities through thermogravimetric analysis (TGA). (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：266 / 271
页数：6
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