首页|Flexible metal-organic frameworks based self-lubricating composite
Flexible metal-organic frameworks based self-lubricating composite
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To expand the use of metal-organic frameworks(MOFs)based self-lubricating composite,flexible MOFs MIL-88D has been studied as a nanocontainer for loading lubricant.In this work,the mechanism of oleamine adsorption and desorption by MIL-88D was investigated through molecular simulations and experiments.Molecular simulations showed that the oleamines can be physically adsorbed into open MIL-88Ds with the Fe and O atoms of MIL-88D interacting with oleamine NH2-group.Higher temperature can cause Ole@MIL-88D to release more oleamines,while higher pressure on Ole@MIL-88D caused less oleamines released.Moreover the Ole@MIL-88D was incorporated into epoxy resin(EP)for friction tests.The optimum mass ratio of MIL-88D to EP is 15 wt%,and the EP/Ole@MIL-88D prefers light load and high frequency friction.This work suggests that flexible MOFs can be used as a nanocontainer for loading lubricant,and can be used as a new self-lubricating composite.
School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China
Key Laboratory of Self-Lubricating Spherical Plain Bearing Technology of Hebei Province,Yanshan University,Qinhuangdao 066004,China
Department of Materials.Imperial College London,London SW7 2AZ,UK
Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing,Yanshan University,Qinhuangdao 066004,China
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Opening Foundation of State Key Laboratory of Tribology in Advanced Equipment at Tsinghua UniversityNatural Science Foundation of Hebei Province of ChinaNational Natural Science Foundation of China
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