Research progress in mask filter materials and their electret technology
This paper introduced the developmental history of masks and reviewed the latest research advancements in polymer nonwoven filter materials and corresponding electret technologies.These electret techniques included corona charging,hydrocharging,and electrospinning,which were required for the addition of electret additives.The commonly used polymer nonwoven filter materials mainly included polypropylene and polylactic acid.Meanwhile,the prospect of the future trends in this field were proposed.
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