Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired Microstructures
As one of the new intelligent materials, controllable bionic adhesive materials have great application prospects in many fields, such as wearable electronic devices, wall climbing robot systems, and biomedical engineering. Inspired by the microstructure of the newt pad’s surface, this paper reports...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Biomimetics |
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| Online Access: | https://www.mdpi.com/2313-7673/7/4/245 |
| _version_ | 1797461259367481344 |
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| author | Shiwei Chen Ziyuan Qian Xiaojiao Fu Xuan Wu |
| author_facet | Shiwei Chen Ziyuan Qian Xiaojiao Fu Xuan Wu |
| author_sort | Shiwei Chen |
| collection | DOAJ |
| description | As one of the new intelligent materials, controllable bionic adhesive materials have great application prospects in many fields, such as wearable electronic devices, wall climbing robot systems, and biomedical engineering. Inspired by the microstructure of the newt pad’s surface, this paper reports a bionic adhesive surface material with controllable adhesion on dry, wet acrylic, and iron sheet surfaces. The material is prepared by mixing the PDMS matrix with micron carbonyl iron powders (CIPs) and then pouring the mixture into a female mold prepared by Photo-curing 3D Printing for curing. As the mold interior is designed with a two-level microstructure array, the material’s surface not only coated a regular hexagonal column array with a side length of 250 μm and a height of 100 μm but also covered seven dome structures with a diameter of 70 μm on each column. In what follows, the adhesion force of the proposed materials contacted three different surfaces are tested with/without magnetic fields. The experimental results show that the MAEs covered with two-level bionic structures(2L-MAE) reported in this paper exhibit a stronger initial adhesion in the three types of surfaces compared to the normal one. Besides, we also found that the magnetic field will noticeably affect their adhesion performance. Generally, the 2L-MAE’s adhesion will increase with the external magnetic field. When the contact surface is an iron sheet, the material adhesion will be reduced by the magnetic field. |
| first_indexed | 2024-03-09T17:16:57Z |
| format | Article |
| id | doaj.art-1be76cc272a341ec8cfe86f4747c5bee |
| institution | Directory Open Access Journal |
| issn | 2313-7673 |
| language | English |
| last_indexed | 2024-03-09T17:16:57Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomimetics |
| spelling | doaj.art-1be76cc272a341ec8cfe86f4747c5bee2023-11-24T13:32:07ZengMDPI AGBiomimetics2313-76732022-12-017424510.3390/biomimetics7040245Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired MicrostructuresShiwei Chen0Ziyuan Qian1Xiaojiao Fu2Xuan Wu3Department of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 400030, ChinaDepartment of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 400030, ChinaDepartment of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 400030, ChinaInstitute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaAs one of the new intelligent materials, controllable bionic adhesive materials have great application prospects in many fields, such as wearable electronic devices, wall climbing robot systems, and biomedical engineering. Inspired by the microstructure of the newt pad’s surface, this paper reports a bionic adhesive surface material with controllable adhesion on dry, wet acrylic, and iron sheet surfaces. The material is prepared by mixing the PDMS matrix with micron carbonyl iron powders (CIPs) and then pouring the mixture into a female mold prepared by Photo-curing 3D Printing for curing. As the mold interior is designed with a two-level microstructure array, the material’s surface not only coated a regular hexagonal column array with a side length of 250 μm and a height of 100 μm but also covered seven dome structures with a diameter of 70 μm on each column. In what follows, the adhesion force of the proposed materials contacted three different surfaces are tested with/without magnetic fields. The experimental results show that the MAEs covered with two-level bionic structures(2L-MAE) reported in this paper exhibit a stronger initial adhesion in the three types of surfaces compared to the normal one. Besides, we also found that the magnetic field will noticeably affect their adhesion performance. Generally, the 2L-MAE’s adhesion will increase with the external magnetic field. When the contact surface is an iron sheet, the material adhesion will be reduced by the magnetic field.https://www.mdpi.com/2313-7673/7/4/245tunable adhesionbionic-inspired adhesionmagnetoactive elastomertwo-level microstructure |
| spellingShingle | Shiwei Chen Ziyuan Qian Xiaojiao Fu Xuan Wu Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired Microstructures Biomimetics tunable adhesion bionic-inspired adhesion magnetoactive elastomer two-level microstructure |
| title | Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired Microstructures |
| title_full | Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired Microstructures |
| title_fullStr | Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired Microstructures |
| title_full_unstemmed | Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired Microstructures |
| title_short | Magnetically Tunable Adhesion of Magnetoactive Elastomers’ Surface Covered with Two-Level Newt-Inspired Microstructures |
| title_sort | magnetically tunable adhesion of magnetoactive elastomers surface covered with two level newt inspired microstructures |
| topic | tunable adhesion bionic-inspired adhesion magnetoactive elastomer two-level microstructure |
| url | https://www.mdpi.com/2313-7673/7/4/245 |
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