Flexible antiadhesive polymer surfaces were fabricated using an array of microgrid patterns generated by three-dimensional (3D) printing. A disadvantage of the fused deposition modeling-type 3D printing (rough surface) was utilized to create casting molds with microgrid patterns. The shape of the microscale pattern was controlled by rotating the bottom epoxy mold where polylactic acid filaments were directly printed. By changing the direction of the bottom epoxy mold and printing resolution, a total of 12 different antiadhesive surfaces were formed and tested to characterize the adhesive forces. The surface cast from the mold with a microgrid pattern with an internal angle of 60° and a printing resolution of ~800 μm exhibited greater antiadhesive property compared to a flat polymer surface. The average adhesive force was reduced by 92.6% (from 162 to 11.9 mN) when the Kapton tape was immediately attached and detached and 99.5% (from 735 to 3.7 mN) when the Kapton tape was detached after 18 d. This study shows the use of 3D printing for a simple cost-effective controllable microfabrication of microgrid patterns for significant reductions in the adhesive forces of polymer surfaces.

使用通过三维（3D）打印生成的微网格图案阵列来制造柔性抗粘聚合物表面。利用熔融沉积建模型3D打印（粗糙表面）的缺点来创建具有微网格图案的铸模。通过旋转底部环氧树脂模具来控制微尺度图案的形状，在底部环氧树脂模具中直接印刷聚乳酸丝。通过改变底部环氧模具的方向和印刷分辨率，总共形成了12种不同的抗粘表面，并进行了测试以表征粘合力。与微聚合物表面相比，具有60°内角和〜800μm印刷分辨率的微网格图案的模具铸模表面表现出更大的抗粘性能。平均粘合力降低了92。立即将Kapton胶带粘上并拆下时为6％（从162到11.9 mN），而在18 d后分离Kapton胶带上时则为99.5％（从735到3.7 mN）。这项研究表明，使用3D打印技术可以简单有效地控制微网格图案的微细加工，从而显着降低聚合物表面的粘合力。