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arXiv 1602.01726cond-mat.soft
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溶胀材料表面的连续介质理论及其在温敏凝胶膜和表面传质中的应用

Continuum theory of swelling material surfaces with applications to thermo-responsive gel membranes and surface mass transport

Alessandro Lucantonio, Luciano Teresi, Antonio DeSimone

摘要:

软膜通常用于形状变形应用中,其中材料被编程以在通过外部触发器激活时实现目标形状,并且作为改变散装材料的表面特性(例如液体的扩散和吸收特性)的涂层。特别地,聚合物凝胶膜在它们的溶剂含量改变时经历溶胀或收缩,并且可以利用非均匀溶胀场来控制它们的形状。在这里,我们开发了一个理论的溶胀材料表面模型的聚合物凝胶膜,并通过数值研究在生物医学,微运动和涂层技术的背景下的应用程序来展示其功能。我们还专门研究了热响应凝胶的理论,这种凝胶是由聚合物制成的,当温度变化时,聚合物会改变它们与溶剂的亲和力。

英文摘要:

Soft membranes are commonly employed in shape-morphing applications, where the material is programmed to achieve a target shape upon activation by an external trigger, and as coating layers that alter the surface characteristics of bulk materials, such as the properties of spreading and absorption of liquids. In particular, polymer gel membranes experience swelling or shrinking when their solvent content change, and the non-homogeneous swelling field may be exploited to control their shape. Here, we develop a theory of swelling material surfaces to model polymer gel membranes and demonstrate its features by numerically studying applications in the contexts of biomedicine, micro-motility, and coating technology. We also specialize the theory to thermo-responsive gels, which are made of polymers that change their affinity with a solvent when temperature varies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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