复合等离子体处理对聚丙烯纤维膜润湿改性的研究

Study on the Effect of Composite Plasma Treatment on Polypropylene Fiber Membrane Wetting Modified by Dopamine

为拓展聚丙烯纤维材料的应用领域,针对等离子体处理对聚丙烯纤维材料润湿改性的影响进行了研究.将聚丙烯(PP)纤维膜经等离子体处理后,再利用多巴胺(PDA)对其进行了化学接枝改性,并对所制备材料的形貌、化学性能、接枝程度和相对润湿性进行了系统性的表征.结果表明:经等离子体处理后,多巴胺处理对聚丙烯纤维膜的表面润湿性能明显提升,接触角可从80°降低至0°.在等离子体处理过程中,当氧气与氩气的比值设定为3/7时,润湿改性后纤维膜的接触角由120°转变为0°,最大接枝度可达1.06%,为控制润湿改性疏水性纤维膜提供了一个全新可靠的方法,在纺织服装、能源化工以及生物医学等领域具有广泛的应用空间.

To expand the application field of polypropylene fiber material,the effect of plasma treatment on wetting modification of polypropylene fiber material was studied in this paper.Polypropylene(PP)fiber membranes were treated by plasma and then chemically grafted with dopamine(PDA)for modification.The morphology,chemical properties,grafting degree and relative wettability of the prepared materials were characterized systematically.The results indicated that after plasma treatment,the surface wettability of the polypropylene fiber membrane was significantly improved,and the contact angle decreased from 80°to 0°.In the process of plasma treatment,when the ratio of oxygen to argon was set to 3/7,the contact angle of the wet modified fiber membrane changed from 120°to 0°,and the maximum grafting degree can reach 1.06%,which provided a brand-new and reliable method for controlling the wet modified hydrophobic fiber membrane;and the wet modified hydrophobic fiber membrane has wide application space in the fields of textiles and garments,energy and chemical industry,biomedicine,etc.