Research Institute for Sustainable Chemistry, AIST, 1-1-1 Higashi, Tsukuba, 305-8565, Japan.
Soft Matter. 2016 Jul 20;12(29):6176-83. doi: 10.1039/c6sm00728g.
Wrinkling of a soft elastomer surface capped by a relatively hard thin film or modified by some physical treatments to induce hardening has been widely studied for applications in fields such as low-cost micro-fabrication, optics and tribology. Here we show that a biaxial textile sheet embedded on the surface of an elastomer buckles and selectively forms anisotropic wrinkles when experiencing a compressive strain in the fibre axial direction. The wrinkles also possess a fine surface structure that originates from the periodic structure of the biaxial textile sheet. Depending on whether the surface is wrinkled or not, the unique frictional property due to which the friction on wrinkles significantly decreases by a factor of less than 0.1 because of the localized contact regions on the protrusions originating from the textile structure is shown.
具有相对较硬薄膜覆盖层或经过某些物理处理以诱导硬化的柔软弹性体表面的起皱已被广泛研究，用于低成本微制造、光学和摩擦学等领域。在这里，我们展示了当纤维轴向受到压缩应变时，嵌入在弹性体表面上的双轴向纺织片会弯曲并选择性地形成各向异性的皱纹。这些皱纹还具有源自双轴向纺织片的周期性结构的精细表面结构。根据表面是否起皱，由于突起处的局部接触区域起源于纺织结构，因此会显示出由于褶皱导致摩擦力显著减小的独特摩擦特性，其摩擦系数减小了不到 0.1。
