Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubrication
Abstract Polytetrafluoroethylene (PTFE) has been widely used as a lubrication additive for reducing friction and wear; however, the hydrophobic nature of PTFE restricts its application in eco-friendly water-based lubrication systems. In this study, for the first time, we designed novel PTFE@silica J...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-05-01
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| Series: | Friction |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40544-023-0749-3 |
| _version_ | 1797414070412902400 |
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| author | Yanfei Liu Hailing He Meng Yang Ruize Zhang Shengtao Yu Tiantian Yang Wenzhong Wang Fuxin Liang |
| author_facet | Yanfei Liu Hailing He Meng Yang Ruize Zhang Shengtao Yu Tiantian Yang Wenzhong Wang Fuxin Liang |
| author_sort | Yanfei Liu |
| collection | DOAJ |
| description | Abstract Polytetrafluoroethylene (PTFE) has been widely used as a lubrication additive for reducing friction and wear; however, the hydrophobic nature of PTFE restricts its application in eco-friendly water-based lubrication systems. In this study, for the first time, we designed novel PTFE@silica Janus nanoparticles (JNs) to meet the requirement for additives in water-based lubricants, which have excellent dispersion stability in water attributed to the unique amphiphilic structure. By introducing the lubrication of the aqueous dispersion of the JNs with a concentration of 0.5 wt%, the coefficient of friction (COF) and wear volume were reduced by 63.8% and 94.2%, respectively, comparing to those with the lubrication of pure water. Meanwhile, the JNs suspension also exhibits better lubrication and wear-resistance performances comparing to commercial silica and PTFE suspensions. The excellent tribological behaviors of PTFE@silica JNs as nano-additives could be attributed to the synergetic effect of the two components, where the PTFE provided lubrication through the formed tribofilms on the friction pairs, and the rigid silica further enhanced the wear-resistance performance. Most importantly, the unique structure of JNs makes it possible to use PTFE as an additive in water-lubrication systems. Our study shed light on the design and application of novel JNs nanomaterials as additives to meet the requirements of future industrial applications. |
| first_indexed | 2024-03-09T05:27:46Z |
| format | Article |
| id | doaj.art-d8877357a09948f293712b810d8a2b9f |
| institution | Directory Open Access Journal |
| issn | 2223-7690 2223-7704 |
| language | English |
| last_indexed | 2024-03-09T05:27:46Z |
| publishDate | 2023-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Friction |
| spelling | doaj.art-d8877357a09948f293712b810d8a2b9f2023-12-03T12:35:57ZengSpringerOpenFriction2223-76902223-77042023-05-0112225827010.1007/s40544-023-0749-3Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubricationYanfei Liu0Hailing He1Meng Yang2Ruize Zhang3Shengtao Yu4Tiantian Yang5Wenzhong Wang6Fuxin Liang7School of Mechanical Engineering, Beijing Institute of TechnologyInstitute of Polymer Science & Engineering, Department of Chemical Engineering, Tsinghua UniversityMOE Key Laboratory of Bioinformatics, Center for Plant Biology, School of Life Sciences, Tsinghua UniversitySchool of Mechanical Engineering, Beijing Institute of TechnologySchool of Mechanical Engineering, Beijing Institute of TechnologyInstitute of Polymer Science & Engineering, Department of Chemical Engineering, Tsinghua UniversitySchool of Mechanical Engineering, Beijing Institute of TechnologyInstitute of Polymer Science & Engineering, Department of Chemical Engineering, Tsinghua UniversityAbstract Polytetrafluoroethylene (PTFE) has been widely used as a lubrication additive for reducing friction and wear; however, the hydrophobic nature of PTFE restricts its application in eco-friendly water-based lubrication systems. In this study, for the first time, we designed novel PTFE@silica Janus nanoparticles (JNs) to meet the requirement for additives in water-based lubricants, which have excellent dispersion stability in water attributed to the unique amphiphilic structure. By introducing the lubrication of the aqueous dispersion of the JNs with a concentration of 0.5 wt%, the coefficient of friction (COF) and wear volume were reduced by 63.8% and 94.2%, respectively, comparing to those with the lubrication of pure water. Meanwhile, the JNs suspension also exhibits better lubrication and wear-resistance performances comparing to commercial silica and PTFE suspensions. The excellent tribological behaviors of PTFE@silica JNs as nano-additives could be attributed to the synergetic effect of the two components, where the PTFE provided lubrication through the formed tribofilms on the friction pairs, and the rigid silica further enhanced the wear-resistance performance. Most importantly, the unique structure of JNs makes it possible to use PTFE as an additive in water-lubrication systems. Our study shed light on the design and application of novel JNs nanomaterials as additives to meet the requirements of future industrial applications.https://doi.org/10.1007/s40544-023-0749-3Janus nanoparticles (JNs)polytetrafluoroethylene (PTFE)nano-additivesfrictionlubrication |
| spellingShingle | Yanfei Liu Hailing He Meng Yang Ruize Zhang Shengtao Yu Tiantian Yang Wenzhong Wang Fuxin Liang Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubrication Friction Janus nanoparticles (JNs) polytetrafluoroethylene (PTFE) nano-additives friction lubrication |
| title | Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubrication |
| title_full | Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubrication |
| title_fullStr | Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubrication |
| title_full_unstemmed | Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubrication |
| title_short | Novel concept of nano-additive design: PTFE@silica Janus nanoparticles for water lubrication |
| title_sort | novel concept of nano additive design ptfe silica janus nanoparticles for water lubrication |
| topic | Janus nanoparticles (JNs) polytetrafluoroethylene (PTFE) nano-additives friction lubrication |
| url | https://doi.org/10.1007/s40544-023-0749-3 |
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