论文标题
量化水凝胶中刚度和渗透性之间的权衡
Quantifying the trade-off between stiffness and permeability in hydrogels
论文作者
论文摘要
水凝胶具有机械和水运输行为的独特组合。随着水凝胶变硬，它们变得不那么渗透。在这里，我们将半脱水聚合物理论与Kozeny-Carman方程相结合，以开发一个简单的缩放定律，描述了液压渗透性与机械刚度之间的关系。我们发现这些特性是由聚合物链间距决定的，这是通过一碗面条汤的类比来解释的。我们发现，在四个不同的聚合物家族中，我们的缩放定律与实验结果之间的一致性非常紧密，具有不同的交联。
Hydrogels have a distinct combination of mechanical and water-transport behaviors. As hydrogels stiffen, they become less permeable. Here, we combine semi-dilute polymer theory with the Kozeny-Carman equation to develop a simple scaling law describing the relationship between hydraulic permeability and mechanical stiffness. We find that these properties are dictated by the polymer strand spacing, explained via analogy of a bowl of noodle soup. We find a remarkably close agreement between our scaling law and experimental results across four different polymer families with varied crosslinkings.
