Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation technique
In this work, the carbon fibres (CFs) surfaces were modified via sizing and coated with a very thin layer of a complex formulation including carbon nanotubes (CNTs). A push-out method was developed based on nanoindentation to assess the interfacial shear strength of the fibre/matrix. The mechanical...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | MATEC Web of Conferences |
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| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2021/18/matecconf_iceaf2021_01007.pdf |
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| author | Zhang Zhenxue Li Xiaoying Dong Hanshan Jestin Simon Termine Stefania Trompeta Aikaterini-Flora Araújo Andreia Santos Raquel M. Charitidis Costas |
| author_facet | Zhang Zhenxue Li Xiaoying Dong Hanshan Jestin Simon Termine Stefania Trompeta Aikaterini-Flora Araújo Andreia Santos Raquel M. Charitidis Costas |
| author_sort | Zhang Zhenxue |
| collection | DOAJ |
| description | In this work, the carbon fibres (CFs) surfaces were modified via sizing and coated with a very thin layer of a complex formulation including carbon nanotubes (CNTs). A push-out method was developed based on nanoindentation to assess the interfacial shear strength of the fibre/matrix. The mechanical properties such as indentation hardness, reduced modulus, indentation displacement and indentation creep of the composite were evaluated by means of the Oliver-Pharr method. The critical load of different composites was measured and the interfacial shear strength (IFSS) was calculated to compare the effect of the CNTs concentration in the sizing solution. Wettability evaluation of the sized fibres was performed prior to nanoindentation to investigate the adhesion of the resin. After push-out testing, characterisation by optical microscopy/SEM was carried out to ratify the results. It was found sizing with a small amount of evenly distributed nano-inclusion on CFs can increase the interfacial shear strength but large amount of sizing could lead to a decrease of the interfacial bonding due to the agglomeration of CNTs on CFs. |
| first_indexed | 2024-12-17T12:48:44Z |
| format | Article |
| id | doaj.art-1b68987896e848c2818cd7c86d956119 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-17T12:48:44Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-1b68987896e848c2818cd7c86d9561192022-12-21T21:47:39ZengEDP SciencesMATEC Web of Conferences2261-236X2021-01-013490100710.1051/matecconf/202134901007matecconf_iceaf2021_01007Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation techniqueZhang Zhenxue0Li Xiaoying1Dong Hanshan2Jestin Simon3Termine Stefania4Trompeta Aikaterini-Flora5Araújo Andreia6Santos Raquel M.7Charitidis Costas8School of Metallurgy and Materials, University of BirminghamSchool of Metallurgy and Materials, University of BirminghamSchool of Metallurgy and Materials, University of BirminghamCANOE, Le Centre Technologique Nouvelle Aquitaine Composites & Matériaux Avancés, Bât CHEMINNOV – ENSCBPResearch Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of AthensResearch Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of AthensInstitute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Materials and Composite Structures unitInstitute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Materials and Composite Structures unitResearch Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of AthensIn this work, the carbon fibres (CFs) surfaces were modified via sizing and coated with a very thin layer of a complex formulation including carbon nanotubes (CNTs). A push-out method was developed based on nanoindentation to assess the interfacial shear strength of the fibre/matrix. The mechanical properties such as indentation hardness, reduced modulus, indentation displacement and indentation creep of the composite were evaluated by means of the Oliver-Pharr method. The critical load of different composites was measured and the interfacial shear strength (IFSS) was calculated to compare the effect of the CNTs concentration in the sizing solution. Wettability evaluation of the sized fibres was performed prior to nanoindentation to investigate the adhesion of the resin. After push-out testing, characterisation by optical microscopy/SEM was carried out to ratify the results. It was found sizing with a small amount of evenly distributed nano-inclusion on CFs can increase the interfacial shear strength but large amount of sizing could lead to a decrease of the interfacial bonding due to the agglomeration of CNTs on CFs.https://www.matec-conferences.org/articles/matecconf/pdf/2021/18/matecconf_iceaf2021_01007.pdfpush-outcntcarbon fibre reinforced compositenano-indentationwettability |
| spellingShingle | Zhang Zhenxue Li Xiaoying Dong Hanshan Jestin Simon Termine Stefania Trompeta Aikaterini-Flora Araújo Andreia Santos Raquel M. Charitidis Costas Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation technique MATEC Web of Conferences push-out cnt carbon fibre reinforced composite nano-indentation wettability |
| title | Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation technique |
| title_full | Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation technique |
| title_fullStr | Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation technique |
| title_full_unstemmed | Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation technique |
| title_short | Investigation on the interfacial properties of CNTs sized carbon fibres in epoxy resin using push-out method via nano-indentation technique |
| title_sort | investigation on the interfacial properties of cnts sized carbon fibres in epoxy resin using push out method via nano indentation technique |
| topic | push-out cnt carbon fibre reinforced composite nano-indentation wettability |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2021/18/matecconf_iceaf2021_01007.pdf |
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