The modification of chemical and physical properties of polypropylene (PP) membrane has been of interest as the creation of hydrophilic surface broadens their potential applications. Herein, we describe the use of laser surface modification methodology to overcome the hydrophobic nature of polypropylene membrane via the deployment of an ArF excimer laser. The modified samples were characterized by means of attenuated total reflectance Fourier transform infrared (ATR-FTIR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), water contact angle (WCA) measurement, and water flux (WF) test. The results suggest that ArF excimer laser irradiation of PP membrane results in the generation of some polar functional groups and surface morphological changes both of them being effective for enhancing the hydrophilicity of PP membrane. In addition, despite increased hydrophilicity of PP membrane at higher fluences of ArF excimer laser, WF decreases due to the covering of pores by melted PP; being 100 mJ/cm² under the optimized laser fluence.

聚丙烯（PP）膜的化学和物理性质的改性已引起人们的关注，因为亲水性表面的产生拓宽了其潜在的应用范围。在这里，我们描述了通过ArF准分子激光器的部署使用激光表面改性方法来克服聚丙烯膜的疏水性。通过衰减全反射傅立叶变换红外（ATR-FTIR），扫描电子显微镜（SEM），X射线光电子能谱（XPS），原子力显微镜（AFM），水接触角（WCA）测量来表征改性后的样品，以及水通量（WF）测试。结果表明，ArF准分子激光辐照PP膜可产生一些极性官能团，且表面形态变化对增强PP膜的亲水性均有效。此外，尽管在较高通量的ArF准分子激光下PP膜的亲水性增强，但由于熔融PP覆盖了孔而导致WF降低；为100 mJ / cm²在优化的激光通量下。