Porous Materials with Tunable Structure and Mechanical Properties via Templated Layer-by-Layer Assembly.
Porous Materials with Tunable Structure and Mechanical Properties via Templated Layer-by-Layer Assembly.
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DOI：
10.1021/acsami.6b07806
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发表时间：
2016-08
影响因子：
9.5
通讯作者：
M. Ziminska;N. Dunne;A. Hamilton
中科院分区：
文献类型：
--
作者：
M. Ziminska;N. Dunne;A. Hamilton
将坚硬而坚固的涂层沉积到多孔模板上，为制造具有微米和纳米尺度受控结构的宏观材料提供了一种新颖的策略。这里，通过将聚合物纳米粘土涂层沉积到开孔泡沫模板上，利用逐层组装来制造具有高度可定制特性的纳米复合涂层泡沫。这些材料的压缩机械行为以可预测的方式演变，可以通过细胞材料机械性能的比例定律定性地捕获。观察到和预测的性能跨越了一个显着的密度-刚度空间范围，从非常柔软的弹性体泡沫区域延伸到非常坚硬、轻质的蜂窝和晶格材料。
The deposition of stiff and strong coatings onto porous templates offers a novel strategy for fabricating macroscale materials with controlled architectures at the micro- and nanoscale. Here, layer-by-layer assembly is utilized to fabricate nanocomposite-coated foams with highly customizable properties by depositing polymer-nanoclay coatings onto open-cell foam templates. The compressive mechanical behavior of these materials evolves in a predictable manner that is qualitatively captured by scaling laws for the mechanical properties of cellular materials. The observed and predicted properties span a remarkable range of density-stiffness space, extending from regions of very soft elastomer foams to very stiff, lightweight honeycomb and lattice materials.