The crawling process of snakes is known to have fascinating tribological phenomena, whereas investigations on their frictional properties depending on patterned cuticles are insufficient. In this study, we have designed and fabricated biomimetic microstructures inspired by the geometric microunits of Achalinus spinalis cuticle using polyurethane acrylate (PUA) material and performed its tribological analysis. The micro-morphology of this Achalinus-inspired textured polymer surface (AITPS) is characterized by the closely and evenly quasi-rectangular microgrooves, periodically arranged along certain orientations. We have compared the frictional performance of our fabricated AITPS with other competitive microstructure, using a smooth steel ball and commercial clay as an interacting surface. After performing massive friction tests with steel ball and clay, AITPS still maintains good resistance reduction performed compared to the patterned surface with straight microgrooves, which is most likely due to the reduction of actual contact areas at the frictional interface.

众所周知，蛇的爬行过程具有迷人的摩擦学现象，而根据图案化的角质层对它们的摩擦特性进行的研究还不够。在这项研究中，我们使用聚氨酯丙烯酸酯 (PUA) 材料设计和制造了受Achalinus spinalis角质层几何微单元启发的仿生微结构，并进行了摩擦学分析。这种Achalinus的微观形态受启发的纹理聚合物表面 (AITPS) 的特点是紧密均匀的准矩形微槽，沿特定方向周期性排列。我们将我们制造的 AITPS 的摩擦性能与其他竞争性微观结构进行了比较，使用光滑的钢球和商业粘土作为相互作用的表面。在用钢球和粘土进行大量摩擦测试后，与带有直微槽的图案化表面相比，AITPS 仍然保持良好的阻力降低，这很可能是由于摩擦界面实际接触面积的减少。