Electret Meltblown Nonwoven Fabric You Don’t Know-Also Known As: Non-woven Fabric-Graphic

Author: Date: 2019-11-24 07:00:54 Hits: 1574 is generally believed that the role of blocking filter solid dust particles are trapped due to occlusion of the filter, inertial deposition, diffusion effects, aggregation and electrostatic effects The result of the combined effect. For ordinary meltblown nonwovens, the filter material mainly depends on the first four functions. Therefore, if you want to improve the filtration performance, you must reduce the fiber diameter and increase the density of the nonwoven fabric. But this will significantly increase the filtration resistance. Therefore, ordinary meltblown nonwovens are used to filter fine dust particles to a certain extent. For example, using a meltblown nonwoven fabric with a fiber diameter of 1u003d5pm to filter solid dust particles of 1-3pm has a certain efficiency, but the effect is not very obvious for solid dust particles below 1um. Electret nonwovens can be made of electret fibers, or ordinary nonwovens can be obtained by electret treatment. There are three main methods for obtaining electret fibers. (1) Electrospinning in which the fiber is electrostatically charged by means of a high-voltage electric field. (2) After the film is charged with static charge by the action of electric green, the electret film split fiber is made by film splitting. (3) Melt spinning method in which the ejected fibers are electrostatically charged by means of the emitter electrode on the spinning line. Related tags: Previous: Downstream product introduction: the use of common functional wipes and cleaning wipes