PAN/MgO复合纳米纤维滤膜的制备与性能分析  

Preparation and Property Analysis of PAN/MgO Composite Nanofiber Filtration Membrane

作　　者：王西贤 孙明楷 路志洁 贾琳[1] 张海霞[1] WANG Xixian;SUN Mingkai;LU Zhijie;JIA Lin;ZHANG Haixia(Henan University of Engineering,Zhengzhou,450000,China)

机构地区：[1]河南工程学院,河南郑州450000

出　　处：《棉纺织技术》2022年第10期31-36,共6页Cotton Textile Technology

基　　金：河南省青年人才托举工程项目(2019HYTP011);河南省高校重点科研项目(21B540001)。

摘　　要：为了制备具有防紫外线和高效低阻多重功能的纳米纤维过滤膜,将质量分数0.5%、1.0%、1.5%、2.0%的光催化抗菌剂纳米MgO掺杂到PAN纺丝溶液中,采用静电纺丝技术制备了不同厚度的PAN/MgO复合纳米纤维膜,测试了PAN/MgO复合纳米纤维膜的微观结构、紫外线防护性能、透气性能和过滤性能。结果表明:与纯PAN纳米纤维过滤膜相比,PAN/MgO复合纳米纤维膜的透气率和紫外线防护系数都得到提高。当纳米MgO质量分数为0.5%、纺丝时间为40 min时,PAN/MgO复合纳米纤维膜过滤效率达到98.84%,阻力压降59.05 Pa,品质因子0.0754 Pa^(-1),透气率114 mm/s。认为:在纺丝液中加入纳米功能颗粒,可以制备出具有良好功能性的复合纳米纤维膜。In order to prepare nanofiber filtration membrane with multiple functions as UV protection and higher efficiency and lower resistance,photocatalytic antibacterial agent magnesium oxide nanoparticles with mass fraction 0.5%,1.0%,1.5%,2.0%were doped into PAN nanofibers spinning solution.Electrostatic spinning technology was adopted to prepare PAN/MgO composite nanofiber membranes with different thickness.Microstructure,UV protection property,air permeability and filtration property of the PAN/MgO nanofiber membranes were measured.The results showed that air permeability and UV protection property of PAN/MgO composite nanofiber membrane were both improved compared with pure PAN nanofiber filtration membrane.When mass fraction of nano MgO was 0.5%and spinning time was 40 min,filtration efficiency of PAN/MgO composite nanofiber membrane was reached 98.84%.Resistance pressure drop was 59.05 Pa.Quality factor was reached 0.0754 Pa-1.Air permeability was 114 mm/s.It is considered that composite nanofiber membrane with better functions can be prepared by adding nano functional particles in spinning solution.

关 键 词：过滤效率 阻力压降 聚丙烯腈 纳米纤维 纳米氧化镁 紫外线防护 透气性 

分 类 号：TS102.6[轻工技术与工程—纺织工程]