Improvement of serviceability properties of synthetic textile fabrics using 172 nm ultraviolet excimer lamp

为了提高合成纺织纤维的润湿性和织物的使用性能，在环境空气中进行了172 nm紫外准分子光照射。在石英晶体微天平（QCM）上制备了聚乙烯、尼龙和醋酸酯模型聚合物表面，并从清洗后QCM的频率变化研究了它们的去除率。用洗涤剂溶液在接触区脂肪酸膜与底物之间的渗透所产生的自由能变化来解释洗涤水溶液中长链脂肪酸的去除。在水/乙醇混合物中，聚合物颗粒在聚合物表面的沉积符合基于扩展DLVO理论计算的相互作用总势能。此外，通过QCM模拟，成功地评估了紫外线照射对上述聚乙烯表面亲水性和去除率的影响。此外，利用市售聚合物薄膜获得的实验结果表明，紫外处理在聚合物表面的有效性。用172 nm紫外准分子光照射醋酸酯、尼龙6、聚对苯二甲酸乙酯、丙烯酸和聚丙烯等纺织织物。紫外线照射对织物的拉伸参数和表面反射率没有明显影响。x射线光电子能谱（XPS）和原子力显微镜（AFM）分析表明，紫外辐照使涤纶织物表面的氧浓度增加，纤维表面粗糙度增大。正如预期的那样，单纤维的润湿性显著提高，因此，紫外线处理成功地增强了织物的毛细润湿性和吸湿性。紫外线处理后，染料的去污性和可染性均有提高。

To increase wettability of synthetic textile fibers and serviceability properties of the fabrics, the 172 nm ultraviolet (UV) excimer light exposure was carried out in ambient air. Model polymer surfaces, polyethylene, nylon and acetate, were prepared on the quartz crystal microbalance (QCM) and their detergency was investigated from the frequency change of the QCM due to cleaning. The removal of long-chain fatty acid in the aqueous detergent solutions was explained in terms of the free energy change resulting from the penetration of the detergent solution between the fatty acid film and the substrate in the zone of contact. The deposition of polymer particles onto the polymer surfaces in water/ethanol mixture was consistent with the total potential energy of interaction calculated on the basis of the extended DLVO theory. In addition, the changes in the hydrophilic properties and the detergency of the above polyethylene surface due to the UV irradiation were successfully evaluated by the QCM simulation. Moreover, the experimental results obtained using the commercially available polymer films indicated the validity of the UV treatment on the polymer surface.The 172 nm ultraviolet (UV) excimer light was exposed to textile fabrics of acetate, nylon 6, poly (ethylene terephthalate), acrylic and polypropylene. No significant changes in the tensile extension parameters and the surface reflectance of the fabrics due to the UV exposure were observed. X-ray photoelectron spectroscopy XPS) and the atomic force microscopy (AFM) showed that the UV irradiation to the PET fabrics increased oxygen concentration and roughness on the single fiber surfaces. As is expected, remarkable increase in wettability of the single fiber was accomplished and hence the capillary wetting and the moisture absorption of the fabrics were successfully enhanced by the UV treatment. In addition, detergency and dyeability were found to improve after the UV treatment.