Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf
The rice leaf, combining the surface properties of lotus leaves and shark skin, presents outstanding superhydrophobic properties motivating its biomimesis. We created a novel biomimetic rice-leaf superhydrophobic surface by a three-level hierarchical structure, using for a first time stereolithograp...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2022-12-01
|
| Series: | Science and Technology of Advanced Materials |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/14686996.2022.2063035 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849735829016018944 |
|---|---|
| author | Belén Barraza Felipe Olate-Moya Gino Montecinos Jaime H. Ortega Andreas Rosenkranz Aldo Tamburrino Humberto Palza |
| author_facet | Belén Barraza Felipe Olate-Moya Gino Montecinos Jaime H. Ortega Andreas Rosenkranz Aldo Tamburrino Humberto Palza |
| author_sort | Belén Barraza |
| collection | DOAJ |
| description | The rice leaf, combining the surface properties of lotus leaves and shark skin, presents outstanding superhydrophobic properties motivating its biomimesis. We created a novel biomimetic rice-leaf superhydrophobic surface by a three-level hierarchical structure, using for a first time stereolithographic (SLA) 3D printed channels (100µm width) with an intrinsic roughness from the printing filaments (10µm), and coated with TiO2 nanoparticles (22 and 100nm). This structure presents a maximum advancing contact angle of 165° characterized by lower both anisotropy and hysteresis contact angles than other 3D printed surfaces, due to the presence of air pockets at the surface/water interface (Cassie-Baxter state). Dynamic water-drop tests show that the biomimetic surface presents self-cleaning, which is reduced under UV-A irradiation. The biomimetic surface further renders an increased floatability to 3D printed objects meaning a drag-reduction due to reduced water/solid contact area. Numerical simulations of a channel with a biomimetic wall confirm that the presence of air is essential to understand our results since it increases the average velocity and decreases the friction factor due to the presence of a wall-slip velocity. Our findings show that SLA 3D printing is an appropriate approach to develop biomimetic superhydrophobic surfaces for future applications in anti-fouling and drag-reduction devices. |
| format | Article |
| id | doaj-art-5787d8fda14444a99e359dbb870d43e3 |
| institution | DOAJ |
| issn | 1468-6996 1878-5514 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj-art-5787d8fda14444a99e359dbb870d43e32025-08-20T03:07:27ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142022-12-0123130032110.1080/14686996.2022.2063035Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leafBelén Barraza0Felipe Olate-Moya1Gino Montecinos2Jaime H. Ortega3Andreas Rosenkranz4Aldo Tamburrino5Humberto Palza6Matemáticas, Universidad de ChileDepartamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y, Santiago, ChileMatemáticas, Universidad de ChileDepartamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y, Santiago, ChileDepartamento de Ingeniería Matemática, Universidad de la Frontera, Temuco, ChileDepartamento de Ingeniería Matemática, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, ChileMatemáticas, Universidad de ChileDepartamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y, Santiago, ChileDepartamento de Ingeniería Civil, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, ChileMatemáticas, Universidad de ChileDepartamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y, Santiago, ChileThe rice leaf, combining the surface properties of lotus leaves and shark skin, presents outstanding superhydrophobic properties motivating its biomimesis. We created a novel biomimetic rice-leaf superhydrophobic surface by a three-level hierarchical structure, using for a first time stereolithographic (SLA) 3D printed channels (100µm width) with an intrinsic roughness from the printing filaments (10µm), and coated with TiO2 nanoparticles (22 and 100nm). This structure presents a maximum advancing contact angle of 165° characterized by lower both anisotropy and hysteresis contact angles than other 3D printed surfaces, due to the presence of air pockets at the surface/water interface (Cassie-Baxter state). Dynamic water-drop tests show that the biomimetic surface presents self-cleaning, which is reduced under UV-A irradiation. The biomimetic surface further renders an increased floatability to 3D printed objects meaning a drag-reduction due to reduced water/solid contact area. Numerical simulations of a channel with a biomimetic wall confirm that the presence of air is essential to understand our results since it increases the average velocity and decreases the friction factor due to the presence of a wall-slip velocity. Our findings show that SLA 3D printing is an appropriate approach to develop biomimetic superhydrophobic surfaces for future applications in anti-fouling and drag-reduction devices.https://www.tandfonline.com/doi/10.1080/14686996.2022.20630353D printingbiomimetichierarchical structurerice leafsuperhydrophobic |
| spellingShingle | Belén Barraza Felipe Olate-Moya Gino Montecinos Jaime H. Ortega Andreas Rosenkranz Aldo Tamburrino Humberto Palza Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf Science and Technology of Advanced Materials 3D printing biomimetic hierarchical structure rice leaf superhydrophobic |
| title | Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf |
| title_full | Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf |
| title_fullStr | Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf |
| title_full_unstemmed | Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf |
| title_short | Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf |
| title_sort | superhydrophobic sla 3d printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf |
| topic | 3D printing biomimetic hierarchical structure rice leaf superhydrophobic |
| url | https://www.tandfonline.com/doi/10.1080/14686996.2022.2063035 |
| work_keys_str_mv | AT belenbarraza superhydrophobicsla3dprintedmaterialsmodifiedwithnanoparticlesbiomimickingthehierarchicalstructureofariceleaf AT felipeolatemoya superhydrophobicsla3dprintedmaterialsmodifiedwithnanoparticlesbiomimickingthehierarchicalstructureofariceleaf AT ginomontecinos superhydrophobicsla3dprintedmaterialsmodifiedwithnanoparticlesbiomimickingthehierarchicalstructureofariceleaf AT jaimehortega superhydrophobicsla3dprintedmaterialsmodifiedwithnanoparticlesbiomimickingthehierarchicalstructureofariceleaf AT andreasrosenkranz superhydrophobicsla3dprintedmaterialsmodifiedwithnanoparticlesbiomimickingthehierarchicalstructureofariceleaf AT aldotamburrino superhydrophobicsla3dprintedmaterialsmodifiedwithnanoparticlesbiomimickingthehierarchicalstructureofariceleaf AT humbertopalza superhydrophobicsla3dprintedmaterialsmodifiedwithnanoparticlesbiomimickingthehierarchicalstructureofariceleaf |