{"title":"The effect of reinforcing fillers on the tribological performance of PTFE composites for a sustainable environment","authors":"","doi":"10.1016/j.wear.2024.205524","DOIUrl":null,"url":null,"abstract":"<div><p>Friction and wear, specifically in automotive components, significantly impact fuel consumption, greenhouse gas emissions, material quality and lifespan, operational costs, and depleting the planet's finite resources. High-performance polymers (HPPs) like Polytetrafluoroethylene (PTFE) are used for their low friction, high wear and chemical resistance, high-temperature stability, and self-lubrication. This study investigates the effects of various reinforcing fillers on PTFE's tribological performance under a 32 N load and 0.5 m/s sliding speed for 1 h in unlubricated conditions, representing automotive air-conditioning compressors. PTFE reinforced with aromatic thermosetting copolyester (ATSP) demonstrated superior wear resistance and lower friction compared to carbon black, bronze, and graphite fillers. The enhanced performance of PTFE-ATSP blends is due to their higher mechanical strength and ability to form fluoride-rich lubricating transfer films on the 440C stainless steel counter surface. PTFE-ATSP blends offer an effective solution for unlubricated engineering applications aimed at sustainable environments.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wear","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0043164824002898","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Friction and wear, specifically in automotive components, significantly impact fuel consumption, greenhouse gas emissions, material quality and lifespan, operational costs, and depleting the planet's finite resources. High-performance polymers (HPPs) like Polytetrafluoroethylene (PTFE) are used for their low friction, high wear and chemical resistance, high-temperature stability, and self-lubrication. This study investigates the effects of various reinforcing fillers on PTFE's tribological performance under a 32 N load and 0.5 m/s sliding speed for 1 h in unlubricated conditions, representing automotive air-conditioning compressors. PTFE reinforced with aromatic thermosetting copolyester (ATSP) demonstrated superior wear resistance and lower friction compared to carbon black, bronze, and graphite fillers. The enhanced performance of PTFE-ATSP blends is due to their higher mechanical strength and ability to form fluoride-rich lubricating transfer films on the 440C stainless steel counter surface. PTFE-ATSP blends offer an effective solution for unlubricated engineering applications aimed at sustainable environments.
期刊介绍:
Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.