{"title":"干摩擦下聚乙烯醇基水凝胶的微动磨损行为","authors":"Fei Xu, Liao-Liang Ke, Jie Su","doi":"10.1007/s11249-025-02013-z","DOIUrl":null,"url":null,"abstract":"<div><p>Hydrogels are ideal substitute materials for articular cartilage. The fretting wear behavior of polyvinyl alcohol (PVA) hydrogel and three types of PVA-based composite hydrogels under dry friction condition is investigated experimentally. Polyvinyl pyrrolidone (PVP), graphene oxide (GO), and multi-walled carbon nanotubes (MWCNTs) are mixed into PVA hydrogels as additives to prepare three composite hydrogels. A sphere-on-flat contact model is established between the PVA-based hydrogel coating and a stainless steel ball. The reciprocating fretting wear equipment is used to conduct fretting tests. Surface wear morphology and wear depth are characterized using three-dimensional (3D) ultra-depth of field microscopy and 3D white-light interference profilometer. The impacts of displacement amplitude, normal force, exposure time, and the number of freeze–thaw cycles on fretting wear behavior of four PVA-based hydrogels are investigated. The results show that the PVA/MWCNTs composite hydrogel exhibits the highest friction coefficient and relatively good wear resistance.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 3","pages":""},"PeriodicalIF":3.3000,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fretting Wear Behavior of PVA-Based Hydrogels Under Dry Friction\",\"authors\":\"Fei Xu, Liao-Liang Ke, Jie Su\",\"doi\":\"10.1007/s11249-025-02013-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Hydrogels are ideal substitute materials for articular cartilage. The fretting wear behavior of polyvinyl alcohol (PVA) hydrogel and three types of PVA-based composite hydrogels under dry friction condition is investigated experimentally. Polyvinyl pyrrolidone (PVP), graphene oxide (GO), and multi-walled carbon nanotubes (MWCNTs) are mixed into PVA hydrogels as additives to prepare three composite hydrogels. A sphere-on-flat contact model is established between the PVA-based hydrogel coating and a stainless steel ball. The reciprocating fretting wear equipment is used to conduct fretting tests. Surface wear morphology and wear depth are characterized using three-dimensional (3D) ultra-depth of field microscopy and 3D white-light interference profilometer. The impacts of displacement amplitude, normal force, exposure time, and the number of freeze–thaw cycles on fretting wear behavior of four PVA-based hydrogels are investigated. The results show that the PVA/MWCNTs composite hydrogel exhibits the highest friction coefficient and relatively good wear resistance.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":806,\"journal\":{\"name\":\"Tribology Letters\",\"volume\":\"73 3\",\"pages\":\"\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2025-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tribology Letters\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11249-025-02013-z\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology Letters","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11249-025-02013-z","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Fretting Wear Behavior of PVA-Based Hydrogels Under Dry Friction
Hydrogels are ideal substitute materials for articular cartilage. The fretting wear behavior of polyvinyl alcohol (PVA) hydrogel and three types of PVA-based composite hydrogels under dry friction condition is investigated experimentally. Polyvinyl pyrrolidone (PVP), graphene oxide (GO), and multi-walled carbon nanotubes (MWCNTs) are mixed into PVA hydrogels as additives to prepare three composite hydrogels. A sphere-on-flat contact model is established between the PVA-based hydrogel coating and a stainless steel ball. The reciprocating fretting wear equipment is used to conduct fretting tests. Surface wear morphology and wear depth are characterized using three-dimensional (3D) ultra-depth of field microscopy and 3D white-light interference profilometer. The impacts of displacement amplitude, normal force, exposure time, and the number of freeze–thaw cycles on fretting wear behavior of four PVA-based hydrogels are investigated. The results show that the PVA/MWCNTs composite hydrogel exhibits the highest friction coefficient and relatively good wear resistance.
期刊介绍：
Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.
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