Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film
The physical compatibility of a highly aligned carbon nanotube (HACNT) film with liquids was established using a fast and convenient experimental protocol. Two parameters were found to be decisive for the infiltration process. For a given density of nanotube packing, the thermodynamics of the infilt...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2011-06-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.2.36 |
| _version_ | 1819074502716293120 |
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| author | Sławomir Boncel Krzysztof Z. Walczak Krzysztof K. K. Koziol |
| author_facet | Sławomir Boncel Krzysztof Z. Walczak Krzysztof K. K. Koziol |
| author_sort | Sławomir Boncel |
| collection | DOAJ |
| description | The physical compatibility of a highly aligned carbon nanotube (HACNT) film with liquids was established using a fast and convenient experimental protocol. Two parameters were found to be decisive for the infiltration process. For a given density of nanotube packing, the thermodynamics of the infiltration process (wettability) were described by the contact angle between the nanotube wall and a liquid meniscus (θ). Once the wettability criterion (θ < 90°) was met, the HACNT film (of free volume equal to 91%) was penetrated gradually by the liquid in a rate that can be linearly correlated to dynamic viscosity of the liquid (η). The experimental results follow the classical theory of capillarity for a steady process (Lucas–Washburn law), where the nanoscale capillary force, here supported by gravity, is compensated by viscous drag. This most general theory of capillarity can be applied in a prediction of both wettability of HACNT films and the dynamics of capillary rise in the intertube space in various technological applications. |
| first_indexed | 2024-12-21T18:10:32Z |
| format | Article |
| id | doaj.art-6ea1a94889d34d33bf802c390c38611c |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-21T18:10:32Z |
| publishDate | 2011-06-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-6ea1a94889d34d33bf802c390c38611c2022-12-21T18:54:48ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862011-06-012131131710.3762/bjnano.2.362190-4286-2-36Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube filmSławomir Boncel0Krzysztof Z. Walczak1Krzysztof K. K. Koziol2Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Krzywoustego 4, Gliwice 44-100, PolandDepartment of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Krzywoustego 4, Gliwice 44-100, PolandUniversity of Cambridge, Department of Materials Science and Metallurgy, Pembroke Street, Cambridge CB2 3QZ, United KingdomThe physical compatibility of a highly aligned carbon nanotube (HACNT) film with liquids was established using a fast and convenient experimental protocol. Two parameters were found to be decisive for the infiltration process. For a given density of nanotube packing, the thermodynamics of the infiltration process (wettability) were described by the contact angle between the nanotube wall and a liquid meniscus (θ). Once the wettability criterion (θ < 90°) was met, the HACNT film (of free volume equal to 91%) was penetrated gradually by the liquid in a rate that can be linearly correlated to dynamic viscosity of the liquid (η). The experimental results follow the classical theory of capillarity for a steady process (Lucas–Washburn law), where the nanoscale capillary force, here supported by gravity, is compensated by viscous drag. This most general theory of capillarity can be applied in a prediction of both wettability of HACNT films and the dynamics of capillary rise in the intertube space in various technological applications.https://doi.org/10.3762/bjnano.2.36capillary actiondynamic viscosityhighly aligned carbon nanotubessuperhydrophobicitywettability |
| spellingShingle | Sławomir Boncel Krzysztof Z. Walczak Krzysztof K. K. Koziol Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film Beilstein Journal of Nanotechnology capillary action dynamic viscosity highly aligned carbon nanotubes superhydrophobicity wettability |
| title | Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film |
| title_full | Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film |
| title_fullStr | Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film |
| title_full_unstemmed | Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film |
| title_short | Dynamics of capillary infiltration of liquids into a highly aligned multi-walled carbon nanotube film |
| title_sort | dynamics of capillary infiltration of liquids into a highly aligned multi walled carbon nanotube film |
| topic | capillary action dynamic viscosity highly aligned carbon nanotubes superhydrophobicity wettability |
| url | https://doi.org/10.3762/bjnano.2.36 |
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