SYNTHESIS AND TRIBOCHEMICAL BEHAVIOR OF SOME MONOTHIOPHOSPHORIC ACID-DERIVATIVES

被引：5
|
作者：
ZINKE, H [1 ]
SCHUMACHER, R [1 ]
机构：
[1] CIBA GEIGY AG,MAT RES,CH-1701 FRIBOURG,SWITZERLAND
来源：
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1991年 / 63卷 / 3-4期
关键词：
DIISOPROPYLPHOSPHITE; MONOTHIOPHOSPHORIC-ACID-O; O-DIISOPROPYL-S-CARBOALKOXIMETHYLESTERS; LUBRICATING OILS; AUGER ELECTRON SPECTROSCOPY; WEAR; TRIBOFRAGMENTATION;
D O I：
10.1080/10426509108036835
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Diisopropylphosphite reacts with sulphur and ammonia to form ammonia monothiophosphoric acid-di-isopropylester which, by subsequent reaction with different monochloroacetic acid esters, yields the corresponding monothiophosphoric-acid-O. O-diisopropyl-S-carboalkoximethylesters. These compounds show different wear- and friction-reducing properties in lubricating oils. The tribochemical activity at higher temperatures increases with the chain length of the carboxylic ester group. Auger electron spectroscopy (AES) of the worn metal surface shows that the wear reducing properties correspond with the phosphorus content in the metal surface produced by tribofragmentation of the monothiophosphates. A possible explanation of this effect is discussed. © 1991, Taylor & Francis Group, LLC. All rights reserved.
引用
收藏
页码：315 / 322
页数：8
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