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Poroelasticity of highly confined hydrogel films measured with a surface forces apparatus.
Soft Matter ( IF 2.9 ) Pub Date : 2020-08-27 , DOI: 10.1039/d0sm01312a
George D Degen 1 , Yen-Tsung Chen 1 , Allison L Chau 2 , Lisa K Månsson 3 , Angela A Pitenis 2
Affiliation  

The influence of poroelasticity on the contact mechanics of thin polyacrylamide films was investigated with a surface forces apparatus (SFA). A model based on a thin film approximation described compression forces for hydrated gels; polymer scaling theory explained the effects of gel dehydration. The results demonstrate that fluid flow dictates the apparent stiffness of highly confined poroelastic films.

中文翻译:

用表面力设备测量的高度受限的水凝胶薄膜的多孔弹性。

用表面力装置(SFA)研究了多孔弹性对聚丙烯酰胺薄膜接触力学的影响。基于薄膜近似的模型描述了水合凝胶的压缩力;聚合物结垢理论解释了凝胶脱水的影响。结果表明,流体流动决定了高度受限的多孔膜的表观刚度。
更新日期:2020-09-16
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