Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability
Bio-inspired fibrillar adhesives have received worldwide attention but their potentials have been limited by a trade-off between adhesion strength and adhesion switchability, and a size scale effect that restricts the fibrils to micro/nanoscales. Here, we report a class of adhesive fibrils that achi...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/180423 |
| _version_ | 1826121251409625088 |
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| author | Linghu, Changhong Liu, Yangchengyi Yang, Xudong Li, Dong Tan, Yee Yuan Mohamed Haziq Bin Mohamed Hafiz Mohammad Fadhli Bin Rohani Du, Zihao Su, Jiangtao Li, Yan Huo, Yucheng Xu, Hanyan Wang, Xiufeng Wang, Yifan Yu, Jing Gao, Huajian Hsia, K. Jimmy |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Linghu, Changhong Liu, Yangchengyi Yang, Xudong Li, Dong Tan, Yee Yuan Mohamed Haziq Bin Mohamed Hafiz Mohammad Fadhli Bin Rohani Du, Zihao Su, Jiangtao Li, Yan Huo, Yucheng Xu, Hanyan Wang, Xiufeng Wang, Yifan Yu, Jing Gao, Huajian Hsia, K. Jimmy |
| author_sort | Linghu, Changhong |
| collection | NTU |
| description | Bio-inspired fibrillar adhesives have received worldwide attention but their potentials have been limited by a trade-off between adhesion strength and adhesion switchability, and a size scale effect that restricts the fibrils to micro/nanoscales. Here, we report a class of adhesive fibrils that achieve unprecedented adhesion strength (∼2 MPa), switchability (∼2000), and scalability (up to millimeter-scale at the single fibril level), by leveraging the rubber-to-glass (R2G) transition in shape memory polymers (SMPs). Moreover, R2G SMP fibrillar adhesive arrays exhibit a switchability of >1000 (with the aid of controlled buckling) and an adhesion efficiency of 57.8%, with apparent contact area scalable to 1000 mm2, outperforming existing fibrillar adhesives. We further demonstrate that the SMP fibrillar adhesives can be used as soft grippers and reusable superglue devices that are capable of holding and releasing heavy objects >2000 times of their own weight. These findings represent significant advances in smart fibrillar adhesives for numerous applications, especially those involving high-payload scenarios. |
| first_indexed | 2025-03-09T12:55:36Z |
| format | Journal Article |
| id | ntu-10356/180423 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T12:55:36Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1804232024-10-12T16:48:50Z Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability Linghu, Changhong Liu, Yangchengyi Yang, Xudong Li, Dong Tan, Yee Yuan Mohamed Haziq Bin Mohamed Hafiz Mohammad Fadhli Bin Rohani Du, Zihao Su, Jiangtao Li, Yan Huo, Yucheng Xu, Hanyan Wang, Xiufeng Wang, Yifan Yu, Jing Gao, Huajian Hsia, K. Jimmy School of Mechanical and Aerospace Engineering School of Materials Science and Engineering School of Chemistry, Chemical Engineering and Biotechnology Institute of High-Performance Computing, A*STAR Engineering Adhesion switchability and scalability Shape memory polymers Bio-inspired fibrillar adhesives have received worldwide attention but their potentials have been limited by a trade-off between adhesion strength and adhesion switchability, and a size scale effect that restricts the fibrils to micro/nanoscales. Here, we report a class of adhesive fibrils that achieve unprecedented adhesion strength (∼2 MPa), switchability (∼2000), and scalability (up to millimeter-scale at the single fibril level), by leveraging the rubber-to-glass (R2G) transition in shape memory polymers (SMPs). Moreover, R2G SMP fibrillar adhesive arrays exhibit a switchability of >1000 (with the aid of controlled buckling) and an adhesion efficiency of 57.8%, with apparent contact area scalable to 1000 mm2, outperforming existing fibrillar adhesives. We further demonstrate that the SMP fibrillar adhesives can be used as soft grippers and reusable superglue devices that are capable of holding and releasing heavy objects >2000 times of their own weight. These findings represent significant advances in smart fibrillar adhesives for numerous applications, especially those involving high-payload scenarios. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) Nanyang Technological University Published version This work was supported by the Ministry of Education (MOE) of Singapore under Academic Research Fund Tier 2 (MOET2EP50122-0001). C.L. acknowledges a Graduate Research Scholarship supported by the MOE of Singapore. Y.L. and Z.D. acknowledge the scholarship support as Visiting PhD Students from the China Scholarship Council. K.J.H. acknowledges a research start-up grant (002271-00001) from the Nanyang Technological University. H.G. acknowledges a research start-up grant (002479-00001) from the Nanyang Technological University and the Agency for Science, Technology and Research (A*STAR). H.G. and D.L. also acknowledge support from the MOE of Singapore AcRF Tier 1 (Grant RG120/21). 2024-10-07T05:50:39Z 2024-10-07T05:50:39Z 2024 Journal Article Linghu, C., Liu, Y., Yang, X., Li, D., Tan, Y. Y., Mohamed Haziq Bin Mohamed Hafiz, Mohammad Fadhli Bin Rohani, Du, Z., Su, J., Li, Y., Huo, Y., Xu, H., Wang, X., Wang, Y., Yu, J., Gao, H. & Hsia, K. J. (2024). Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability. National Science Review, 11(10), nwae106-. https://dx.doi.org/10.1093/nsr/nwae106 2095-5138 https://hdl.handle.net/10356/180423 10.1093/nsr/nwae106 39309978 2-s2.0-85201022762 10 11 nwae106 en MOET2EP50122-0001 NTU SUG 002271-00001 NTU SUG 002479-00001 RG120/21 National Science Review © The Author(s) 2024. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | Engineering Adhesion switchability and scalability Shape memory polymers Linghu, Changhong Liu, Yangchengyi Yang, Xudong Li, Dong Tan, Yee Yuan Mohamed Haziq Bin Mohamed Hafiz Mohammad Fadhli Bin Rohani Du, Zihao Su, Jiangtao Li, Yan Huo, Yucheng Xu, Hanyan Wang, Xiufeng Wang, Yifan Yu, Jing Gao, Huajian Hsia, K. Jimmy Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability |
| title | Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability |
| title_full | Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability |
| title_fullStr | Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability |
| title_full_unstemmed | Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability |
| title_short | Fibrillar adhesives with unprecedented adhesion strength, switchability and scalability |
| title_sort | fibrillar adhesives with unprecedented adhesion strength switchability and scalability |
| topic | Engineering Adhesion switchability and scalability Shape memory polymers |
| url | https://hdl.handle.net/10356/180423 |
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