脲基数量对聚脲润滑脂性能的影响
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摘要
利用二苯甲烷-4,4’-二异氰酸酯(MDI)、十八胺、乙二胺作为原料,制备了二脲、四脲、六脲、八脲润滑脂。测试了各润滑脂的滴点、稠化能力、抗剪切安定性、胶体安定性、极压性能,进一步探讨了聚脲润滑脂的化学组成和微观结构对润滑脂性能的影响。结果表明,随着聚脲分子中脲基数量的增加,润滑脂滴点逐渐升高,抗剪切性能、胶体安定性和极压性能逐渐增强,稠化能力逐渐降低。
4,4'-Diphenylmethane diisocyanate(MDI),octadecylamine,ethylenediamine were employed to the preparation of diurea,four urea,six urea and eight urea greases.The dropping point,thickening ability,shear stability,colloid stability and extreme pressure property of the greases were measured.The results reveal that with the number of urea groups increasing,the dropping point,shear stability,colloid stability and extreme pressure property improve,while the thickening ability decreases.
4,4'-Diphenylmethane diisocyanate(MDI),octadecylamine,ethylenediamine were employed to the preparation of diurea,four urea,six urea and eight urea greases.The dropping point,thickening ability,shear stability,colloid stability and extreme pressure property of the greases were measured.The results reveal that with the number of urea groups increasing,the dropping point,shear stability,colloid stability and extreme pressure property improve,while the thickening ability decreases.
引文
[1]姚立丹,杨海宁,孙洪伟,等.2014年中国及全球润滑脂生产状况分析[J].石油商技,2015,(5):13-25.(YAO Lidan,YANG Haining,SUN Hongwei,et al.Analysis of Chinese and global grease production in 2014[J].Petroleum Products Application Research,2015,(5):13-25.)
[2]刘磊,孙洪伟.聚脲润滑脂的研究进展[J].化工进展,2009,28(1):51-61.(LIU Lei,SUN Hongwei.Progress of research on polyurea grease[J].Chemical Industry and Engineering Progress,2009,28(1):51-61.)
[3]ANTHONY C,ACHIM F.Polyurea grease safe and simple[J].Lubes Greases,2004,10(1):30-34.
[4]TIM T,NADASDI T T.Next generation long-life polyurea greases[J].NLGI Spokesman,2001,65(8):8-14.
[5]BARNES J.Morphologies and release behavior of polyurea microcapsules from different polyisocyanates[J].Journal of the National Lubricating Grease Institute,1989,(6):103-106.
[6]JIANG Kejuan,ZHAI Yunshi.Study of high temperature properties of fluoro-silicones[J].Journal of Material Engineering,1999,(3):35-37.
[7]LI Zhihua,WU Huayuan,REN Dongyan,et al.Recent progress in research on high temperature lubricant greases[J].Materials Review,2004,18(1):53-56.
[8]BERGER T.High-temperature greases for rolling bearings[J].Applied Mechanics and Engineering,2002,7(2):729-737.
[9]朱廷彬.润滑脂技术大全[M].北京:中国石化出版社,2005:562-563.
[10]杨玮,姚立丹,郑善伟.脲基润滑脂的结构及反应机理的研究[J].石油学报(石油加工),2000,16(4):40-44.(YANG Wei,YAO Lidan,ZHENG Shanwei.Study on the structure and reaction mechanism of urea grease[J].Acta Petrolei Sinica(Petroleum Processing Section),2000,16(4):40-44.)
[11]金强,金人海,朱敏,等.摩擦化学的应用与进展[J].化工时刊,1997,11(7):10-13.(JIN Qiang,JIN Renhai,ZHU Min,et al.Application and prospect of tribochemistry[J].Chemical Industry Times,1997,11(7):10-13.)
[2]刘磊,孙洪伟.聚脲润滑脂的研究进展[J].化工进展,2009,28(1):51-61.(LIU Lei,SUN Hongwei.Progress of research on polyurea grease[J].Chemical Industry and Engineering Progress,2009,28(1):51-61.)
[3]ANTHONY C,ACHIM F.Polyurea grease safe and simple[J].Lubes Greases,2004,10(1):30-34.
[4]TIM T,NADASDI T T.Next generation long-life polyurea greases[J].NLGI Spokesman,2001,65(8):8-14.
[5]BARNES J.Morphologies and release behavior of polyurea microcapsules from different polyisocyanates[J].Journal of the National Lubricating Grease Institute,1989,(6):103-106.
[6]JIANG Kejuan,ZHAI Yunshi.Study of high temperature properties of fluoro-silicones[J].Journal of Material Engineering,1999,(3):35-37.
[7]LI Zhihua,WU Huayuan,REN Dongyan,et al.Recent progress in research on high temperature lubricant greases[J].Materials Review,2004,18(1):53-56.
[8]BERGER T.High-temperature greases for rolling bearings[J].Applied Mechanics and Engineering,2002,7(2):729-737.
[9]朱廷彬.润滑脂技术大全[M].北京:中国石化出版社,2005:562-563.
[10]杨玮,姚立丹,郑善伟.脲基润滑脂的结构及反应机理的研究[J].石油学报(石油加工),2000,16(4):40-44.(YANG Wei,YAO Lidan,ZHENG Shanwei.Study on the structure and reaction mechanism of urea grease[J].Acta Petrolei Sinica(Petroleum Processing Section),2000,16(4):40-44.)
[11]金强,金人海,朱敏,等.摩擦化学的应用与进展[J].化工时刊,1997,11(7):10-13.(JIN Qiang,JIN Renhai,ZHU Min,et al.Application and prospect of tribochemistry[J].Chemical Industry Times,1997,11(7):10-13.)