Multilayer graphene-modified TPU nanocomposites: Superior wear resistance and friction reduction at ultra-low filler content.
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| Title: | Multilayer graphene-modified TPU nanocomposites: Superior wear resistance and friction reduction at ultra-low filler content. |
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| Authors: | Legnani, Amanda1 eng.amandalegnani@gmail.com, Marcomini, André Luis2, Silva, Philipe Augusto Pocidonio3, de Sousa, Ricardo Geraldo4, Santos, Anderson Júnior dos1, Santos, João Paulo Ferreira1 |
| Source: | Express Polymer Letters. Apr2026, Vol. 20 Issue 4, p326-341. 16p. |
| Subjects: | Wear resistance, Tribology, Polymeric composites, Graphene, Lubrication & lubricants, Materials science, Polyurethane elastomers, Nanocomposite materials |
| Abstract: | This work presents the development of high-performance thermoplastic polyurethane (TPU) nanocomposites reinforced with low contents of multilayer graphene (mG), aiming to improve their tribological behavior. Using twin-screw extrusion followed by hot pressing, nanocomposites containing 0.1, 0.25, 0.5, 1, and 2% mG weight were fabricated and systematically evaluated. Nanocomposites with only 0.1-0.25 wt% mG achieved a 36% reduction in friction coefficient and 87.5% reduction in wear volume compared to neat TPU. Results are rarely reported at such low filler loadings. Scanning electron microscopy (SEM) analysis revealed uniform dispersion at these optimal concentrations, while higher mG contents led to agglomeration and performance loss. Rheological studies indicated improved flow behavior, and dynamic-mechanical analysis confirmed increased energy dissipation and thermal response. These results suggest that the concentrations of 0.1% and 0.25% of multilayer graphene used in the study are promising for improving the performance of TPU nanocomposites in applications requiring high wear resistance for advanced applications in automotive, biomedical, and high-load engineering components, where durability and low friction are essential. [ABSTRACT FROM AUTHOR] |
| Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192018408 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Multilayer graphene-modified TPU nanocomposites: Superior wear resistance and friction reduction at ultra-low filler content. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Legnani%2C+Amanda%22">Legnani, Amanda</searchLink><relatesTo>1</relatesTo><i> eng.amandalegnani@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Marcomini%2C+André+Luis%22">Marcomini, André Luis</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Silva%2C+Philipe+Augusto+Pocidonio%22">Silva, Philipe Augusto Pocidonio</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22de+Sousa%2C+Ricardo+Geraldo%22">de Sousa, Ricardo Geraldo</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Santos%2C+Anderson+Júnior+dos%22">Santos, Anderson Júnior dos</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Santos%2C+João+Paulo+Ferreira%22">Santos, João Paulo Ferreira</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Express+Polymer+Letters%22">Express Polymer Letters</searchLink>. Apr2026, Vol. 20 Issue 4, p326-341. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Wear+resistance%22">Wear resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Tribology%22">Tribology</searchLink><br /><searchLink fieldCode="DE" term="%22Polymeric+composites%22">Polymeric composites</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene%22">Graphene</searchLink><br /><searchLink fieldCode="DE" term="%22Lubrication+%26+lubricants%22">Lubrication & lubricants</searchLink><br /><searchLink fieldCode="DE" term="%22Materials+science%22">Materials science</searchLink><br /><searchLink fieldCode="DE" term="%22Polyurethane+elastomers%22">Polyurethane elastomers</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This work presents the development of high-performance thermoplastic polyurethane (TPU) nanocomposites reinforced with low contents of multilayer graphene (mG), aiming to improve their tribological behavior. Using twin-screw extrusion followed by hot pressing, nanocomposites containing 0.1, 0.25, 0.5, 1, and 2% mG weight were fabricated and systematically evaluated. Nanocomposites with only 0.1-0.25 wt% mG achieved a 36% reduction in friction coefficient and 87.5% reduction in wear volume compared to neat TPU. Results are rarely reported at such low filler loadings. Scanning electron microscopy (SEM) analysis revealed uniform dispersion at these optimal concentrations, while higher mG contents led to agglomeration and performance loss. Rheological studies indicated improved flow behavior, and dynamic-mechanical analysis confirmed increased energy dissipation and thermal response. These results suggest that the concentrations of 0.1% and 0.25% of multilayer graphene used in the study are promising for improving the performance of TPU nanocomposites in applications requiring high wear resistance for advanced applications in automotive, biomedical, and high-load engineering components, where durability and low friction are essential. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Express Polymer Letters is the property of Budapest University of Technology & Economics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3144/expresspolymlett.2026.26 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 326 Subjects: – SubjectFull: Wear resistance Type: general – SubjectFull: Tribology Type: general – SubjectFull: Polymeric composites Type: general – SubjectFull: Graphene Type: general – SubjectFull: Lubrication & lubricants Type: general – SubjectFull: Materials science Type: general – SubjectFull: Polyurethane elastomers Type: general – SubjectFull: Nanocomposite materials Type: general Titles: – TitleFull: Multilayer graphene-modified TPU nanocomposites: Superior wear resistance and friction reduction at ultra-low filler content. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Legnani, Amanda – PersonEntity: Name: NameFull: Marcomini, André Luis – PersonEntity: Name: NameFull: Silva, Philipe Augusto Pocidonio – PersonEntity: Name: NameFull: de Sousa, Ricardo Geraldo – PersonEntity: Name: NameFull: Santos, Anderson Júnior dos – PersonEntity: Name: NameFull: Santos, João Paulo Ferreira IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 1788618X Numbering: – Type: volume Value: 20 – Type: issue Value: 4 Titles: – TitleFull: Express Polymer Letters Type: main |
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