Fabrication of stable slippery lubricant-infused porous surface on polymethyl methacrylate/thermoplastic polyurethane by supercritical CO2 foaming

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL

Journal of Supercritical Fluids Pub Date : 2024-09-23 DOI:10.1016/j.supflu.2024.106415

Shaowei Xing, Yishen Zhao, Chenxu Tian, Cuifang Lv, Meijiang Lin, Yao Wang, Guangxian Li, Xia Liao

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引用次数: 0

Abstract

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.

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用超临界二氧化碳发泡法在聚甲基丙烯酸甲酯/热塑性聚氨酯上制造稳定的注入润滑剂的多孔滑面

开发可持续的高效方法来制备注入润滑剂的光滑多孔表面（SLIPS）是一项意义深远的工作。本研究利用双层聚合物相互限制发泡的特性，通过双层聚甲基丙烯酸甲酯（PMMA）制备了双峰细胞。同时，通过双层聚甲基丙烯酸甲酯（PMMA）/热塑性聚氨酯（TPU）制备了均匀细胞。制备的多孔表面具有很高的孔隙率（57% 或更高）。作为分散相的热塑性聚氨酯提高了 PMMA/TPU 表面的细胞密度，最大细胞密度为 5.5 × 107 cells/cm2，平均细胞尺寸为 1.0 μm。在具有高孔隙率和均匀微孔的 PMMA/TPU 表面制备的 SLIPS 具有更好的稳定性，在 8000 r/min 的离心旋转后，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和可持续高效制备 SLIPS 的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Supercritical Fluids 工程技术-工程：化工

CiteScore

7.60

自引率

10.30%

发文量

236

审稿时长

56 days

期刊介绍： The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.