This paper introduces the development history of air filter materials,describes the principles and methods of different spinning electret technologies,and describes the electret characteristics of electret technology,focuses on the problems and current situation of electrostatic pinning nanotechnology and double electret technology in the preparation of air filter materials,and analyzes the influence of inorganic electret materials on the performance of electrostatic nanospinning technology to prepare thin films and the improvement methods.
air filter materialelectrostatic pinningelectret technology
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