Friction Dynamics of Hydrogel Substrates with a Fractal Surface: Effects of Thickness
Friction Dynamics of Hydrogel Substrates with a Fractal Surface: Effects of Thickness
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具有分形表面的水凝胶基底的摩擦动力学:厚度的影响
DOI:
10.1021/acsomega.9b04184
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发表时间:
2020
期刊:
影响因子:
4.1
通讯作者:
Y. Nonomura
中科院分区:
文献类型:
--
作者:
K. Shinomiya;H. Okawara;K. Kikuchi;H. Mayama;Y. Nonomura
Interfacial phenomena on soft and wet materials, such as hydrogels, are important for modeling physical phenomena, such as friction, wetting, and adhesion on hydrophilic biosurfaces. Interfacial phenomena on soft material surfaces are not only affected by the properties of the surface but also by the geometry of the substrate. However, there are few reports on the influence of geometry and deformability on friction behavior at gel interfaces. In this study, we evaluate the effects of the thickness (H) of the upper agar gel layer on the friction force between gels under a sinusoidal movement. AlthoughHdoes not significantly affect the friction force or pattern, the normalized delay time (δ), which is the normalized time lag in the friction force response to the contact probe’s movement, increases withH. A regression analysis between δ andHshows that δ increased linearly withH. We present a simple model incorporating a shear modulus to qualitatively explain the experimental results. The analysis and our model indicate that one must not only consider surface properties, such as adhesion, but also thickness and rigidity when studying friction behavior at the gel–surface interface. These findings will be useful for understanding friction phenomena on soft biological systems, such as the tongue, throat, esophagus, and gut surfaces.
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影响因子:
1.7
作者:
D. Kaneko;M. Oshikawa;Tetsuo Yamaguchi;J. Gong;M. Doi
通讯作者:
M. Doi
DOI:
10.1115/1.4041364
发表时间:
2018
期刊:
Journal of Tribology
影响因子:
--
作者:
A. Thakre;A. Singh
通讯作者:
A. Singh
影响因子:
1.5
作者:
Ayano Kudo;Marika Sato;Haruna Sawaguchi;J. Hotta;H. Mayama;Y. Nonomura
通讯作者:
Y. Nonomura
影响因子:
1.8
作者:
Persson, BNJ;Volokitin, AI;Tosatti, E
通讯作者:
Tosatti, E
影响因子:
4.6
作者:
Tetsuo Yamaguchi;Ryuichiro Sato;Y. Sawae
通讯作者:
Tetsuo Yamaguchi;Ryuichiro Sato;Y. Sawae