Biodegradability and Tribological Properties of Mineral Base Oil Enhanced by Caprylic Methyl Diethanolamine Phosphate Ester
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摘要
The influence of synthetic caprylic methyl diethanolamine phosphate ester(abbreviated as MDEACP)on biodegradability and tribological properties of 400 SN mineral base oil was studied.The biodegradability of the neat base oil and the oil doped with MDEACP was determined on a biodegradation tester.The tribological properties of the neat base oil and the oil doped with MDEACP were evaluated on a four-ball tester.Moreover,the worn surfaces were investigated by scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS).The results revealed that MDEACP significantly promoted the biodegradation of the mineral base oil.The improvement in biodegradability was attributed to the enhanced growth and quantity of microbes by MDEACP.Furthermore,MDEACP enhanced the anti-wear properties,the friction-reducing properties,and the extreme pressure properties of the base oil.It was mainly attributed to the formation of the complex boundary lubrication film resulted from the adsorption and tribochemical reactions of MDEACP on the friction surface.
The influence of synthetic caprylic methyl diethanolamine phosphate ester(abbreviated as MDEACP)on biodegradability and tribological properties of 400 SN mineral base oil was studied.The biodegradability of the neat base oil and the oil doped with MDEACP was determined on a biodegradation tester.The tribological properties of the neat base oil and the oil doped with MDEACP were evaluated on a four-ball tester.Moreover,the worn surfaces were investigated by scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS).The results revealed that MDEACP significantly promoted the biodegradation of the mineral base oil.The improvement in biodegradability was attributed to the enhanced growth and quantity of microbes by MDEACP.Furthermore,MDEACP enhanced the anti-wear properties,the friction-reducing properties,and the extreme pressure properties of the base oil.It was mainly attributed to the formation of the complex boundary lubrication film resulted from the adsorption and tribochemical reactions of MDEACP on the friction surface.
The influence of synthetic caprylic methyl diethanolamine phosphate ester(abbreviated as MDEACP)on biodegradability and tribological properties of 400 SN mineral base oil was studied.The biodegradability of the neat base oil and the oil doped with MDEACP was determined on a biodegradation tester.The tribological properties of the neat base oil and the oil doped with MDEACP were evaluated on a four-ball tester.Moreover,the worn surfaces were investigated by scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS).The results revealed that MDEACP significantly promoted the biodegradation of the mineral base oil.The improvement in biodegradability was attributed to the enhanced growth and quantity of microbes by MDEACP.Furthermore,MDEACP enhanced the anti-wear properties,the friction-reducing properties,and the extreme pressure properties of the base oil.It was mainly attributed to the formation of the complex boundary lubrication film resulted from the adsorption and tribochemical reactions of MDEACP on the friction surface.
引文
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[2]Zhang N,Chen B S,Wei Y L,et al.Impacts of alkanolamide surfactants on biodegradation of lubricating oil[J].Environmental Science&Technology,2015,38(9):123-126(in Chinese)
[3]Madanhire I,Mbohwa C.Mitigating Environmental Impact of Petroleum Lubricants[M].Switzerland:Springer International Publishing AG Switzerland,2016:8-13
[4]Chen B S,Wang J,Huang W J,et al.Effect of lauroyl glutamine on biodegradability of lubricating oil and biodegradation kinetics[J].Chemical Research and Application,2010,22(6):727-730(in Chinese)
[5]Chen B S,Wang J,Huang W J,et al.Linear regression of kinetic equation for biodegradation of lubricating oils accelerated by oleoyl glycine[J].Journal of Functional Materials,2010,41(3):460-462(in Chinese)
[6]Heikal E K,Elmelawy M S,Khalil S A,et al Manufacturing of environmentally friendly biolubricants from vegetable oils[J].Egyptian Journal of Petroleum2016,26(1):53-59
[7]Reeves C J,Menezes P L.Advancements in Eco-friendly Lubricants for Tribological Applications:Past,Present and Future[M].Ecotribology,Springer International Publishing,2016
[8]Chen B S,Fang J H,Li F F.Environmentally Friendly Lubricants[M].Beijing:China Petrochemical Press,2006
[9]Ding J H,Fang J H,Jiang Z Q,et al.Overview of biodegradable lubricants[J].Synthetic Lubricants,201744(2):38-43(in Chinese)
[10]Nagendramma P,Kaul S.Development of ecofriendly/biodegradable lubricants:An overview[J].Renewable&Sustainable Energy Reviews,2012,16(1):764-774
[11]You J W,Li F F,Huang Y H.Tribological performance of two potential environmentally friendly ashless vegetable oil additives[J].China Petroleum Processing and Petrochemical Technology,2010,12(1):43-48
[12]Chen B S,Gao L Y,Fang J H,et al.Lubricant biodegradation enhancers:designed chemistry and engineered technology[J].China Petroleum Processing&Petrochemical Technology,2015,17(3):102-110
[13]Chen B S,Wang J,Fang J H,et al.Tribological performance of fatty acyl amino acids used as green additives in lubricating oil[J].China Petroleum Processing and Petrochemical Technology,2010,12(3):49-53
[14]Chen B S,Zhang N,Wu J,et al.Enhanced biodegradability and lubricity of mineral lubricating oil by fatty acidic diethanolamide borates[J].Green Chemistry,2013,15(3):738-743
[15]Abioye P O,Aziz A A,Agamuthu P.Enhanced biodegradation of used engine oil in soil amended with organic wastes[J].Water Air and Soil Pollution,2010209(1):173-179
[16]Walworth J,Pond A,Hviape I.Nitrogen requirements for maximizing petroleum bioremediation in a sub-Antarctic soil[J].Cold Regions Science and Technology,200748(2):84-91
[17]Margesin R,Hammerle M,Tscherko D.Microbial activity and community composition during bioremediation of diesel oil-contaminated soil effects of hydrocarbon concentration,fertilizers and incubation time[J].Microbial Ecology,2007,53(2):259-269
[18]Wang K,Fang J.H,Chen B S.A fast method for the evaluation of biodegradability of lubricating oils[J].Acta Petrolei Sinica(Petroleum Processing Section),200420(6):74-78(in Chinese)
[19]Onibon V O,Fagbola O.Evaluation of bioremediation efficiency of crude oil-polluted soils as influenced by application of composts and NPK fertilizer[J].Fresenius Environmental Bulletin,2013,22(1):61-66
[20]Stephen E,Temola O.Enhanced biodegradation of spent lubricating oil contaminated soil using poultry litter[J].British Biotechnology Journal,2014,4(8):868-876
[21]Yang G B,Tian Y,Zhang J F,et al.Preparation and tribological properties of N-containing heterocyclic borates as lubricant additives[J].Tribology,2012,32(4):384-389
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