可生物降解型哌嗪衍生物的摩擦学性能
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摘要
为了研究新型哌嗪衍生物的可生物降解性和摩擦学性能,设计合成了环保型润滑油添加剂1,4-双(二硫代甲酸乙酰乙胺)哌嗪(DAP)。采用元素分析和红外光谱进行结构表征,考察了其热稳定性能、可生物降解性和在液体石蜡油(LP)中的极压抗磨性能,利用扫描电子显微镜(SEM)和X射线光电子能谱仪(XPS)分析了钢球的磨损表面形态。结果表明:合成的化合物热稳定性能好并具有良好的可生物降解性;化合物添加到LP中后具有很好的极压抗磨性能,并在摩擦过程中发生了化学吸附及摩擦化学反应,在摩擦区域金属表面上形成了一层复杂边界润滑膜,从而起到了良好的抗磨减摩的作用。
In order to study biodegradation properties and tribology performance of the piperazine derivatives,1,4-di(dithiocarbamate N-acetylethylamine) piperazine(DAP) was designed and synthesized supposed to be used as environmental friendly lube additives. The structure of samples was characterized by infrared spectrum(IR) and elemental analysis,and the thermal stability and biodegradation properties as well as extreme pressure antiwear performance in liquid paraffin(LP) were studied. In addition,scanning electron microscope(SEM) and X-ray photoelectron spectrometer(XPS) were employed to analyzed the surface wear topography of steel ball after test. Results showed that the obtained DAP had fair thermal stability and good biodegradability. With adding DAP into LP,the sample possessed excellent extreme pressure antiwear performance,and tribochemistry reaction and chemical adsorption occurred during friction process. Furthermore,a boundary lubrication film was formed on the metal surface,which could play the role of anti-wear and reducing friction.
In order to study biodegradation properties and tribology performance of the piperazine derivatives,1,4-di(dithiocarbamate N-acetylethylamine) piperazine(DAP) was designed and synthesized supposed to be used as environmental friendly lube additives. The structure of samples was characterized by infrared spectrum(IR) and elemental analysis,and the thermal stability and biodegradation properties as well as extreme pressure antiwear performance in liquid paraffin(LP) were studied. In addition,scanning electron microscope(SEM) and X-ray photoelectron spectrometer(XPS) were employed to analyzed the surface wear topography of steel ball after test. Results showed that the obtained DAP had fair thermal stability and good biodegradability. With adding DAP into LP,the sample possessed excellent extreme pressure antiwear performance,and tribochemistry reaction and chemical adsorption occurred during friction process. Furthermore,a boundary lubrication film was formed on the metal surface,which could play the role of anti-wear and reducing friction.
引文
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[2]曹月平,余来贵.环境友好润滑剂及添加剂[J].润滑油,1999,14(5):17-21.
[3]胡志孟.一种新型的水溶性有机硼化合物润滑和防锈添加剂[J].材料保护,2000,33(4):47-48.
[4]方建华,陈波水,王九,等.环氧油酸甲酯润滑油添加剂的摩擦学性能研究[J].润滑油,2015,30(2):22-25.
[5]陈波水,方建华,张楠,等.润滑油生物降解促进剂的化学设计与工程基础[J].后勤工程学院学报,2015,31(5):1-6.
[6]韩恒文,段庆华.含硫添加剂对润滑油铜腐蚀性能的影响[J].石油炼制与化工,2013,44(4):70-74.
[7]仇建伟,李建明,周旭光,等.苯并三氮唑衍生物的摩擦学性能研究[J].润滑油与燃料,2014,24(2):23-26.
[8]欧阳平,陈严华,张贤明,等.苯并噻唑(啉)类润滑油添加剂的研究进展[J].化学研究与应用,2014,26(10):1 521-1 526.
[9]欧阳平,张贤明,陈国需.含氮杂环润滑油添加剂的合成及性能研究[J].化学研究与应用,2013,25(2):174-178.
[10]王敬尊,武轶,李润涛,等.1,4-二(二硫代烷基)哌嗪类化合物的场解吸质谱研究[J].中国科学(B辑),1999,29(4):367-372.
[11]王昆,方建华,陈波水,等.润滑油生物降解性快速测定方法的研究[J].石油学报:石油加工,2004,20(6):74-78.
[12]冯薇荪,汪孟言,唐秀军.润滑油的生物降解性与其结构及组成的关系[J].石油学报:石油加工,2000,16(3):48-57.
[13]何万仁,张泽抚,刘维民,等.硫代磷酸三正辛酯的合成及其摩擦学性能研究[J].摩擦学学报,2003,23(1):28-32.