Abstract
Realizing minimum tube lubrication played an important role on biological and industrial lubrication. In this study, water molecular lubrication of PTFE through carbon nanotube (CNT) was firstly found from molecular dynamics (MD) simulation. The MD model of PTFE water lubrication throng CNT was built to observe the whole friction dynamic evolution process and analysis the change of interface from nano scale. Specially, the interactions among PTFE molecular, water molecular and Cu atoms were analyzed by extracting the radius distribution function (RDF). The results suggest that water molecular in CNT gradually precipitated at the frictional interface under the shear force and reduced the friction and wear of PTFE. This theoretical study provides a new insight for designing minimum tube green liquid lubrication.
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