{"title":"Tribological properties of oil-impregnated porous PTFE composites using CA as a novel pore-forming agent","authors":"Xiaobing Fan, Bingli Pan, Hongyu Liu, Shuang Zhao, Xiaofan Ding, Haoyu Gao, Bing Han, Hongbin Liu","doi":"10.1108/ilt-03-2024-0097","DOIUrl":null,"url":null,"abstract":"Purpose\nThis paper aims to prepare an oil-impregnated porous polytetrafluoroethylene (PTFE) composite with advanced tribological properties using citric acid as a novel pore-forming agent.\n\nDesign/methodology/approach\nCitric acid (CA) was used to form pores in PTFE, and then oil-impregnated PTFE composites were prepared. The pore-forming efficiency of CA was evaluated. The possible mechanism of lubrication was proposed according to the tribological properties.\n\nFindings\nThe results show CA is an efficient pore-forming agent and completely removed, and the porosity of the PTFE increases with the increase of the CA content. The oil-impregnated porous PTFE exhibits an excellent tribological performance, an increased wear resistance of 77.29% was realized in comparison with neat PTFE.\n\nOriginality/value\nThis study enhances understanding of the lubrication mechanism of oil-impregnated porous polymers and guides for their tribological applications.\n","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial Lubrication and Tribology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1108/ilt-03-2024-0097","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose
This paper aims to prepare an oil-impregnated porous polytetrafluoroethylene (PTFE) composite with advanced tribological properties using citric acid as a novel pore-forming agent.
Design/methodology/approach
Citric acid (CA) was used to form pores in PTFE, and then oil-impregnated PTFE composites were prepared. The pore-forming efficiency of CA was evaluated. The possible mechanism of lubrication was proposed according to the tribological properties.
Findings
The results show CA is an efficient pore-forming agent and completely removed, and the porosity of the PTFE increases with the increase of the CA content. The oil-impregnated porous PTFE exhibits an excellent tribological performance, an increased wear resistance of 77.29% was realized in comparison with neat PTFE.
Originality/value
This study enhances understanding of the lubrication mechanism of oil-impregnated porous polymers and guides for their tribological applications.
设计/方法/途径采用柠檬酸（CA）在聚四氟乙烯（PTFE）中形成孔隙，然后制备油浸渍聚四氟乙烯（PTFE）复合材料，该复合材料具有先进的摩擦学性能。对 CA 的成孔效率进行了评估。结果表明，CA 是一种高效的孔隙形成剂，可完全去除，且 PTFE 的孔隙率随 CA 含量的增加而增加。该研究加深了人们对油浸多孔聚合物润滑机理的理解，并为其在摩擦学领域的应用提供了指导。
期刊介绍：
Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.
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