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论文类型： 期刊论文

发表时间： 2017-06-30

发表刊物： CHINA PETROLEUM PROCESSING & PETROCHEMICAL TECHNOLOGY

收录刊物： SCIE、Scopus

卷号： 19

期号： 2

页面范围： 80-88

ISSN号： 1008-6234

关键字： 1,3,4-thiadiazole; Schiff base; tribological behaviour; corrosion inhibiting ability; lubricant additives

摘要： Six new 1,3,4-thiadiazole Schiff base derivatives were synthesized and characterized by IR spectroscopy and H-1 NMR spectrometry, and their anti-corrosion properties and thermal stability were investigated via thermogravimetric analysis (TGA) and copper strip corrosion test. The tribological behavior of the said Schiff base derivatives was evaluated on an Optimol SRV (R) 4 oscillating reciprocating friction and wear tester. The worn surfaces of the steel discs were investigated using a scanning electron microscope (SEM) and energy dispersive X-ray spectrometer (EDS). The test results indicated that these thiadiazole Schiff base derivatives possessed favourable thermal stability, corrosion inhibiting ability and the capability of improving the tribological characteristic of the base oil effectively. It is assumed that the adsorbed additives probably reacted with the steel surfaces during the friction process, resulting in the formation of a protective film composed of sulphates, sulphides and organic nitrogen compounds.