The development of sustainable and efficient methods to prepare slippery lubricant-infused porous surface (SLIPS) is a profound work. In this study, using bilayer polymers restricting foaming mutually, bimodal cells were prepared through bilayer poly(methyl methacrylate) (PMMA). At the same time, uniform cells were prepared by bilayer PMMA /thermoplastic polyurethane (TPU). The prepared porous surfaces exhibited a high porosity (57 % or more). TPU as dispersed phase increased the cell density of the PMMA/TPU surface with a maximum cell density of 5.5 × 107 cells/cm2 and an average cell size of 1.0 μm. SLIPS prepared on PMMA/TPU surface with high porosity and uniform microcellular had better stability, and the sliding angle (SA) remained less than 10° after centrifugal rotation at 8000 r/min. Therefore, this work provides an approach to improve the surface cell density and produce SLIPS sustainably and efficiently.

中文翻译：

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超临界 CO2 发泡法在聚甲基丙烯酸甲酯/热塑性聚氨酯上制备稳定光滑的润滑剂注入多孔表面


开发可持续和有效的方法来制备光滑的润滑剂注入多孔表面 （SLIPS） 是一项意义深远的工作。在本研究中，使用限制相互发泡的双层聚合物，通过双层聚甲基丙烯酸甲酯 （PMMA） 制备双峰电池。同时，通过双层 PMMA/热塑性聚氨酯 （TPU） 制备均匀的电池。制备的多孔表面表现出高孔隙率（57% 或更高）。TPU 作为分散相增加了 PMMA/TPU 表面的细胞密度，最大细胞密度为 5.5 × 107 个细胞/cm2，平均细胞尺寸为 1.0 μm。在高孔隙率和均匀微孔的 PMMA/TPU 表面上制备的 SLIPS 具有更好的稳定性，在 8000 r/min 离心旋转后滑动角 （SA） 仍小于 10°。因此，这项工作提供了一种提高表面细胞密度并可持续有效地生产 SLIPS 的方法。