口罩用抗菌复合纤维膜的制备及性能研究

Preparation and property of anti-bacterial composite fiber membrane for mask

为了提高聚丙烯(PP)熔喷布的过滤效率,通过静电纺丝法制备了PAN/PP复合纤维膜,研究了工艺参数对其过滤效率、过滤气阻和抗菌性能的影响。测试结果表明:相对于PP熔喷布,复合纤维膜对盐性颗粒物和油性颗粒物的过滤效率均有明显提升。当纺丝液质量分数12%、纺丝电压10 kV、纺丝时间90 min时,复合纤维膜的过滤效率最高。当纺丝液质量分数10%,纺丝电压10 kV时,复合纤维膜的抑菌性能随着纺丝时间的增加而增强,经过90 min的静电纺丝后,复合纤维膜已具有一定的抗菌性能。认为:制备的PAN/PP复合纤维膜用作口罩等呼吸防护用过滤材料具有一定的性能优势。

In order to improve the air filtration efficiency of polypropylene(PP)melt-blown nonwoven,polyacrylonitrile(PAN)/PP composite fiber membrane was prepared by electrospinning,and the effects of process parameters on its filtration efficiency,air filtration resistance and anti-bacterial performance were studied.Test results showed that filtration efficiency of the composite fiber membrane with both salt and oil particles was significantly improved compared with PP melt-blown nonwoven.The filtration efficiency of salt particles and oil particles could be reached the highest as the spinning solution concentration was 12%,the spinning voltage was 10 kV,and the spinning time was 90 min.When the spinning solution concentration was 10%and the spinning voltage was 10 kV,the anti-bacterial performance of the composite fiber membrane was enhanced with the increase of spinning time.After 90 min of electrostatic spinning,the composite fiber membrane already had a specific anti-bacterial performance.It is considered that the prepared PAN/PP composite fiber membrane has certain advantages as filter elements for breathing protection,such as masks.