嵌入石墨烯对有机薄膜承载及摩擦性能影响机制
Project Number51405212
陈丽
Abstract设计和开发具有低粘着、低摩擦、高承载、长寿命的组装润滑薄膜具有重要的科学意义和实用价值。本项目旨在利用石墨烯优异的力学性能和超润滑性,构筑“过渡层分子—石墨烯—外层分子”三明治结构组装薄膜。通过氧化石墨烯还原条件的控制,实现石墨烯表面活性位点的有效调控,考察石墨烯表面活性位点的多寡对组装薄膜稳定性及内在结构(致密度、有序性等)的影响,着重考察石墨烯基组装薄膜的内在结构、表面化学组分与复合薄膜承载能力及微/纳摩擦学性能的相关性规律,探讨石墨烯对组装薄膜微/纳摩擦学特性及承载能力的增强效应;在此基础上发展低表面能、低摩擦系数、高承载能力、优异耐磨性能的石墨烯基组装润滑薄膜。【英文摘要】Designanddevelopmentself-assembledlubricationfilmswithlowadhesion,lowfrictionforce,excellentload-carryingcapacityandreliableworkinglifeisbothscientificallysignificantandtechnologicallyimportant.Recently,graphenehasattractedtremendousattentionbecauseofitsuniqueproperties,suchasoutstandingmechanicperformanceandsuper-lubrication.Accordingly,weproposedhereforpreparationofaseriesof“underlayermolecule-graphene-outlayermolecule”filmswithsandwichstructurebyself-assemblymethod.Thereactivespotsonthesurfaceofgraphenewillbecreatedbyoxidizingcrystallineflakegraphite,followedbythereductionofgrapheneoxide,andtheamountofreactivespotscouldbetunedbycontrollingthereductionextent.Theeffectofreactivespotsonthesurfaceofgraphene,moleculebackbonesandterminalgroupsofself-assembledmoleculesonthefilmstructureandsurfacechemicalcomponentwillbeinvestigated.Theinfluenceofreactivespotsofgrapheneontheorderinganddensityofcompositefilmswillbeevaluated.Theeffectoffilmstructureandchemicalcomponentonthemicro/nanotribologicalpropertiesandload-carryingcapacityofcompositefilmswillbediscussed.Itisleadingtotheconclusionthatgrapheneinsertedinorganicfilmswillexhibitstrengtheningeffectonthemicro/nanotribologicalpropertiesandload-carryingcapacity.
Subtype青年科学基金项目
Project Source国家自然科学基金
2015-01
End Date2017-12
MOST Discipline Catalogue11 - 工程与技术 ; 1102 - 机械工程
Host Institution兰州理工大学
Project Funding250000.0
CountryCN
Language中文
Document Type项目
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64736
Collection石油化工学院
Recommended Citation
GB/T 7714
陈丽.嵌入石墨烯对有机薄膜承载及摩擦性能影响机制.2015.
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