{"title":"多元醇酯润滑油热氧化降解机理研究","authors":"V. Bakunin, O. Parenago","doi":"10.1002/JSL.3000090204","DOIUrl":null,"url":null,"abstract":"Polyol ester lubricants are used in a wide range of temperature conditions, normally from ‐ 54 up to +220 °C, and their application can be limited by high tem perature oxidation leading to viscosity increase, sludge and/or formation of d eposits. This paper is concerned with the chemical processes which take place during the oxid ation of esters, particularly polyol esters, and discusses the selectivity of oxygen attac k on ester molecules, and the formation and decomposition of hydroperoxides as well as other pr oducts formed as a result of ester oxidation. Proposed mechanisms of polyol ester lubricant oxidation are discussed, and unresolved problems which require additional research efforts are revealed.","PeriodicalId":17149,"journal":{"name":"Journal of Synthetic Lubrication","volume":"35 1","pages":"127-143"},"PeriodicalIF":0.0000,"publicationDate":"1992-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"34","resultStr":"{\"title\":\"A Mechanism of Thermo-oxidative Degradation of Polyol Ester Lubricants\",\"authors\":\"V. Bakunin, O. Parenago\",\"doi\":\"10.1002/JSL.3000090204\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Polyol ester lubricants are used in a wide range of temperature conditions, normally from ‐ 54 up to +220 °C, and their application can be limited by high tem perature oxidation leading to viscosity increase, sludge and/or formation of d eposits. This paper is concerned with the chemical processes which take place during the oxid ation of esters, particularly polyol esters, and discusses the selectivity of oxygen attac k on ester molecules, and the formation and decomposition of hydroperoxides as well as other pr oducts formed as a result of ester oxidation. Proposed mechanisms of polyol ester lubricant oxidation are discussed, and unresolved problems which require additional research efforts are revealed.\",\"PeriodicalId\":17149,\"journal\":{\"name\":\"Journal of Synthetic Lubrication\",\"volume\":\"35 1\",\"pages\":\"127-143\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"34\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Synthetic Lubrication\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/JSL.3000090204\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Synthetic Lubrication","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/JSL.3000090204","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Mechanism of Thermo-oxidative Degradation of Polyol Ester Lubricants
Polyol ester lubricants are used in a wide range of temperature conditions, normally from ‐ 54 up to +220 °C, and their application can be limited by high tem perature oxidation leading to viscosity increase, sludge and/or formation of d eposits. This paper is concerned with the chemical processes which take place during the oxid ation of esters, particularly polyol esters, and discusses the selectivity of oxygen attac k on ester molecules, and the formation and decomposition of hydroperoxides as well as other pr oducts formed as a result of ester oxidation. Proposed mechanisms of polyol ester lubricant oxidation are discussed, and unresolved problems which require additional research efforts are revealed.
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