文档介绍：湘潭大学
硕士学位论文
含氮硫润滑油添加剂的合成、表征和摩擦学性能研究(Ⅰ)
姓名:杨攀龙
申请学位级别:硕士
专业:有机化学
指导教师:赵鸿斌
20060430
湘潭大学 2003 级硕士论文
摘要
文摘:极压抗磨添加剂在润滑油添加剂的研究中一直处于重要地位。随着现代化
工业的发展和环境保护的要求日益提高,对润滑油添加剂的发展提出了新的要
求,即开发高效的多功能添加剂以及添加剂无“磷”、无“锌”化,大量研究表
明,氮元素在摩擦过程中能够有助于形成具有高效抗磨减摩性能的保护膜。而且
可以有效减缓活性元素硫对金属表面的腐蚀。在各种含氮硫化合物中,杂环化合
物以其分子结构紧凑有良好的热稳定性,易于将不同官能团及活性元素结合于同
一个分子中以及对环境危害小等优点引起了广泛的重视。
在文献调研的基础上,本论文合成了一系列15种新型润滑油添加剂,其中14
种未见文献报道,探讨了这些化合物的合成条件;用IR、UV、 1H NMR、 13C NMR、
MS和元素分析对其结构进行表征,确证了其结构。在各种溶剂中考察其溶解性,
采用热重分析(TGA)对其热稳定性进行了评价。并在四球摩擦磨损试验机上考
察了其在液体石蜡中的摩擦性能,结果表明,这一类添加剂可以大幅度提高液体
石蜡的极压性能。根据对这15种化合物的结构分析,作者认为,在摩擦过程中N
原子的孤对电子可以与金属原子的空d轨道络合,也可以与金属表面的正电荷位
结合,形成较稳定的络合吸附保护膜。N 元素主要吸附在摩擦表面,S元素与钢球
表面的Fe发生摩擦化学反应生成FeS2、FeSO4从而起到抗磨减摩作用。
关键词:润滑油添加剂;合成;表征;摩擦学性能
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湘潭大学 2003 级硕士论文
Abstract
Abstract:The anti-wear and extreme pressure lubricating oil additives have always
been important in the research of lubricants. With the development of modern
industry and an increasing notice put on environment protection, there are new
requests on the development of lubricating oil additives such as studying highly
efficient and multifunctional lubricating oil additives and ensuring no phosphor or
zinc contained in additives. Large amounts of former research papers have proved
that element nitrogen is helpful not only to form a protective film owning anti-wear
and friction reduction properties during the sliding process, but also to alleviate the
erosion caused by other active elements such as many kinds of
nitrogen and sulfur pounds, the N containing pounds
are noticed due to their characteristics pact structures, good thermal stability,
being useful to synthesize bining different active elements and
less harmful to environment.
In this paper pounds as lubricating additves were synthesized and
fourteen of them were novel, their preparative conditions were investigated,
molecular structures of pounds were conf