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Indexed by:期刊论文

Date of Publication:2017-06-30

Journal:CHINA PETROLEUM PROCESSING & PETROCHEMICAL TECHNOLOGY

Included Journals:SCIE、Scopus

Volume:19

Issue:2

Page Number:80-88

ISSN No.:1008-6234

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

Abstract: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.