Exploration of electret property of area bonded ES-fiber fabric

Area bonded ES-fiber fabrics with different linear densities and surface densities were subjected to electret treatment by corona discharge and the filtration efficiency of the fabrics before and after the treatment was compared,along with the effect of fiber linear density and surface density on the electret property.The authors tested the surface electrostatic potential of the melt-blown PP nonwoven fabric and the area bonded ES-fiber fabric immediately after the electret treatment and analyzed the charge keeping stability of the area bonded ES-fiber fabric.The results indicated that in terms of area bonded ES-fiber fabric,smaller the fiber linear density and larger the surface density,better the electret property.However,the melt-blown PP nonwoven fabric compared favorably with the area bonded ES-fiber fabric in respect of instant charge keeping stability.