Research on the Relationship between Molecular Activity of Additives and Lubricating Performance of Aluminum Rolling Oil-中国期刊网

摘要 Inthispaper,anabinitio,localdensityfunctional(LDF)methodwasusedtoexploretherelationshipbetweenthemolecularpropertiesofadditivesandthelubricatingperformanceofaluminumrollingoil.Thestructuralpropertiesofbutylstearate,dodecanol,docosanol,andmethyldodecanoatewerestudiedaccordingtothedensityfunctionaltheory.Thecalculateddatashowedthattheatomsinoraroundthefunctionalgroupsmightbelikelythereactingsites.Becauseofthedifferentfunctionalgroupsandstructureofesterandalcohol,twotypesofcomplexadditives,dodecanolandbutylstearate,methyldodecanoateandbutylstearate,respectively,werechosenforstudyingtheirtribologicalpropertiesandperformingaluminumcoldrollingexperiments.Thetestresultsagreedwiththecalculatedresultsverywell.Thecomplexester,viz.methyldodecanoateandbutylstearate,hadthebestlubricatingperformancewithafrictioncoefficientof0.0841andapermissive-rollingthicknessof0.040mmascomparedwiththatofdodecanol-butylstearate-baseoilformulation.

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Research on the Relationship between Molecular Activity of Additives and Lubricating Performance of Aluminum Rolling Oil

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Research on the Relationship between Molecular Activity of Additives and Lubricating Performance of Aluminum Rolling Oil

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