期刊
SOFT MATTER
卷 8, 期 5, 页码 1492-1498出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1sm06514a
关键词
-
类别
资金
- National Research Council
- National Science Foundation (NSF) [CMMI-0800161]
- Multidisciplinary University Research Initiative (MURI) [W911NF-09-1-0476]
- Materials Research Science and Engineering Center at Harvard University [DMR-0820484]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [820484] Funding Source: National Science Foundation
In this work, we present the Poroelastic Relaxation Indentation (PRI) testing approach for quantifying the mechanical and transport properties of thin layers of poly(ethylene glycol) hydrogels with thicknesses on the order of 200 mu m. Specifically, PRI characterizes poroelastic relaxation in hydrogels by indenting the material at fixed depth and measuring the contact area-dependent load relaxation process as a function of time. With the aid of a linear poroelastic theory developed for thin or geometrically confined swollen polymer networks, we demonstrate that PRI can quantify the water diffusion coefficient, shear modulus and average pore size of the hydrogel layer. This approach provides a simple methodology to quantify the material properties of thin swollen polymer networks relevant to transport phenomena.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据