Radiation-induced grafting technique is one of the most promising methods to improve functional properties of textile materials. This work reports the grafting of 2,2,2-trifluoroethyl methacrylate (TFEM) onto polypropylene (PP) spunbond nonwoven fabric via gamma irradiation to improve its hydrophobicity. The effects of monomer concentration, solvent type, atmospheric condition, and irradiation dose on the degree of grafting were investigated. As characterized by SEM, FTIR, and NMR, the appearance and chemical characteristic of grafted fabric were completely altered compared to the original fabric. The grafted fabrics illustrated impressively high water contact angle of 125 degree. Moreover, the grafted fabrics maintained great hydrophobicity after the tests of chemical, thermal, UV, mechanical, and washing durability. These results suggested that grafting of 2,2,2-trifluoroethyl methacrylate onto PP spunbond offered a potential method to generate reusable hydrophobic fabrics.

辐射诱导接枝技术是改善纺织材料功能特性的最有前途的方法之一。这项工作报告了通过伽马射线辐照将2,2,2-三氟乙基甲基丙烯酸甲酯（TFEM）接枝到聚丙烯（PP）纺粘无纺布上以改善其疏水性。研究了单体浓度，溶剂类型，大气条件和辐照剂量对接枝度的影响。通过SEM，FTIR和NMR表征，与原始织物相比，接枝织物的外观和化学特性已完全改变。接枝织物的水接触角高达125度，令人印象深刻。此外，在化学，热，紫外线，机械和洗涤耐久性的测试之后，接枝织物保持了很大的疏水性。