基于静电纺PAN/PMIA共混纳米纤维复合空气过滤纸的制备及性能研究

Preparation and Properties of PAN/PMIA Blended Nanofiber Composite Air Filter Paper Based on Electrostatic Spinning

关键词:  复合空气过滤纸  静电纺丝  过滤效率  过滤阻力

Key Words:composite air filter paper  electrostatic spinning  filtration efficiency  filtration resistance

摘要:以空气过滤原纸为基材，高可纺性的聚丙烯腈（PAN）和高性能间位芳纶短切纤维（PMIA）为原料，利用静电纺丝技术，制备PAN/PMIA共混纳米纤维复合空气过滤纸。通过调整2种特种纤维的质量比，制备具有良好过滤性能和较好耐高温性能的复合空气过滤纸。结果表明，PAN与PMIA质量比为3∶7的PAN/PMIA共混纳米纤维复合空气过滤纸的过滤效率为99.995%，初始阻力为79.01 Pa，容尘量为175 g/m²。经一系列热处理后，复合空气过滤纸的过滤效率可保持在99.960%以上。

Abstract:PAN/PMIA blended nanofiber composite air filter paper was prepared by electrostatic spinning technology using air filter base paper as substrate， polyacrylonitrile （PAN） with high spinnable and meta-aramid （PMIA） with high performance as raw materials. By adjusting the mass ratio of two specialty fiber， a composite air filter paper with good filtration performance and high temperature resistance was prepared. The results showed that when the mass ratio of PAN to PMIA was 3∶7， the filtration efficiency of PAN/PMIA blended nanofiber composite filter paper was 99.995%， the initial resistance was 79.01 Pa， and the dust capacity was 175 g/m². After a series of heat treatment， the filtration efficiency of the composite filter paper could be maintained above 99.960%.