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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c03122
|2 doi
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|a eng
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|a Chen, Shiwei
|e verfasserin
|4 aut
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|a Magnetic-Responsive Superhydrophobic Surface of Magnetorheological Elastomers Mimicking from Lotus Leaves to Rose Petals
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|c 2021
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 02.03.2021
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|a Date Revised 02.03.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In nature, many plants have evolved various wettability surfaces to survive and thrive in diverse environments. For example, the superhydrophobic surface of lotus can keep itself clean, while the rose petals can retain droplets for a long time. The former is referred to the "lotus effect," and the latter is known as the "rose petal effect." This research proposes a method to fabricate magnetic-responsive superhydrophobic magnetorheological elastomers (MREs) which could reversibly and instantly transition their surface wetting state between the "lotus effect" and the "rose petal effect." These surfaces with controllable wettability could find applications in the manipulation of liquids in biological and chemical systems. The MREs are cured by applying a uniform magnetic field to form "mountain-like" microstructures on their surfaces. This initial surface is rough and exhibits the lotus leaf effect. Because of the nonuniform magnetically induced deformation, the surface micromorphology and roughness can be altered by an applied magnetic field. The state of water droplets on its surface is changed from the Wenzel state to the Cassie-Baxter (CB) state. Therefore, the proposed MRE surface could switch their dynamic wetting features between the "rose petals" and "lotus leaves" via a magnetic field. An experimental platform for the wetting features of MRE surfaces is established to characterize the dynamic behaviors of water drops on MREs under a magnetic field. A magneto-mechanic coupled model is proposed to interpret how the magnetic field influences the MRE surface as well as the droplet movement
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Zhu, Minghui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Yuanhao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Shuai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xiaojie
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 37(2021), 7 vom: 23. Feb., Seite 2312-2321
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:37
|g year:2021
|g number:7
|g day:23
|g month:02
|g pages:2312-2321
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|u http://dx.doi.org/10.1021/acs.langmuir.0c03122
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