气溶胶流量对空气过滤材料过滤效率和呼吸阻力的影响  

Effect of aerosol flow rate on the filtration efficiency and respiratory resistance of air filtration materials

作　　者：刘超[1,2] 何斌[2] 柯勤飞[1] LIU Chao;HE Bin;KE Qinfei(Engineering Research Center of Technical Textile,Ministry of Education,Donghua University,Shanghai 201620,China;Textile and Fashion Collage,Hunan Institute of Engineering,Xiangtan 411100,Hunan,China)

机构地区：[1]东华大学产业用纺织品教育部工程研究中心,上海201620 [2]湖南工程学院纺织服装学院,湖南湘潭411100

出　　处：《上海纺织科技》2020年第5期11-13,22,共4页Shanghai Textile Science & Technology

基　　金：东华大学博士研究生创新基金资助项目(102552016015);湖南省教育厅科学研究项目(18C0693);湖南工程学院青年科研项目(XJ1802).

摘　　要：改变过滤性能测试中氯化钠(NaCl)气溶胶的流量,研究其对针刺、熔喷和静电纺3种常用非织造空气过滤材料过滤效率和呼吸阻力的影响。结果表明:各试样的过滤效率随气溶胶流量的增大而呈现不同程度的减小,其中针刺静电棉试样的过滤效率下降明显,呼吸阻力随气溶胶流量的增加呈线性增长趋势;各试样拟合方程的校正相关系数平方R^2均大于0.95,可用于估算不同气溶胶流量条件下试样的呼吸阻力,其中熔喷试样和静电纺试样的呼吸阻力随气溶胶流量的增加而明显上升;气溶胶流量变化对普通针刺试样的过滤效率和呼吸阻力影响较小。By changing the flow rate of sodium chloride aerosol in filtration performance test,tlie effect of sodium chloride(NaCl)aerosol flow rate on the filtration efficiency and respiratory resistance of three common non-woven air filtration materials,including needle punching,melt-blown and electrospinning,is studied.The results show that the filtration efficiency of each sample decreases with the increase of aerosol flow rate,and the filtration efficiency of needle-punched electrostatic cotton samples decreases obviously.Respiratory resistance increases linearly with the increase of aerosol flow rate,the R2 of fitting equation of each sample is greater than 0.95,which could he used to estimate the respiratory resistance of samples under different aerosol flow rates.Respiratory resistance of melt-blown samples and electrospinning sample increase rapidly.The change of aerosol flow rate has little effect on the filtration efficiency and respiratory resistance of needle-punched sample.

关 键 词：过滤材料 非织造物 过滤效率 气溶胶流量 呼吸阻力 孔径 

分 类 号：TS176.5[轻工技术与工程—纺织材料与纺织品设计]