Tribological Characteristics of Three Novel Imidazoline-Type Thiadiazole Derivatives in Colza Oil and Synthetic Diester

	Tribological Characteristics of Three Novel Imidazoline-Type Thiadiazole Derivatives in Colza Oil and Synthetic Diester
	Shui, L; Zhou, Y; Zhang, GR; Chen, H; Zhao, YD; Zhao YD(赵屹东)
刊名	JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
	2012
卷号	134 期号:3 页码:31802
关键词	lubricant additives colza oil synthetic diester additive-deposited films XANES
英文摘要	Owing to the requests of exploring environment-friendly and multifunctional lubricant additives, three novel imidazoline-type thiadiazole derivatives are prepared and used as lubricant additives in two biodegradable base stocks, colza oil and synthetic diester, respectively, and their tribological performance is tested using the four-ball tester. For further understanding of their tribological behaviors, x-ray absorption near edge structure (XANES) spectroscopy is adopted to analyze the thermal films and tribofilms generated from these additives in two base stocks. Tribological tests show that all these thiadiazole derivatives are effective in reducing wear in synthetic diester, and derivative SIB (stearic acid-imidazoline-type thiadiazole derivative) is better than derivative OIB (oleic acid-imidazoline-type thiadiazole derivative) and derivative DIB (lauric acid-imidazoline-type thiadiazole derivative) in reducing friction at high additive concentrations. But these derivatives almost fail in improving the tribological characteristic of colza oil. According to XANES spectra, thermal films formed in two base stocks are mainly composed of ferrous sulfate and adsorbed organic sulfide. These derivatives are also easily oxidized into high-valent sulfate in colza oil during the rubbing process, and ferrous sulfate is the main component of these tribofilms. But in synthetic diester, tribofilms are mainly composed of ferrous sulfide, and it is notable that the tribofilm generated by derivative SIB at 1.0 wt. % is composed of ferrous sulfide and ferrous disulfide. Under extreme-pressure conditions, these derivatives easily react with the metallic surface to generate ferrous sulfide in colza oil. But in synthetic diester, adsorbed organic sulfide is the main component of those films. The base stock has a great impact on the compositions of these reaction films, so the tribological behaviors of these derivatives are different in two base stocks. [DOI: 10.1115/1.4006925]
学科主题	Engineering
收录类别	SCI
WOS记录号	WOS:000306761600015
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224518]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Shui, L,Zhou, Y,Zhang, GR,et al. Tribological Characteristics of Three Novel Imidazoline-Type Thiadiazole Derivatives in Colza Oil and Synthetic Diester[J]. JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME,2012,134(3):31802.
APA	Shui, L,Zhou, Y,Zhang, GR,Chen, H,Zhao, YD,&赵屹东.(2012).Tribological Characteristics of Three Novel Imidazoline-Type Thiadiazole Derivatives in Colza Oil and Synthetic Diester.JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME,134(3),31802.
MLA	Shui, L,et al."Tribological Characteristics of Three Novel Imidazoline-Type Thiadiazole Derivatives in Colza Oil and Synthetic Diester".JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME 134.3(2012):31802.