| abstract |
The invention discloses an electret filter base paper based on natural plant fibers and a preparation method and application, comprising the following steps: (1) dispersing pulp cellulose, adding conductive polymer material monomers to obtain a first mixed suspension; (2) adding an oxidant to the first mixed suspension, stirring and reacting at 0°C in an ice bath for 1 to 3 hours, filtering, washing, drying, and dissolving to obtain a modified second mixed suspension; (3) Add polylactic acid fiber, reinforcing agent, SiO 2 , and nanocellulose to the second mixed suspension, then disperse and mix evenly, and make paper to obtain paper; (4) electret treatment of the prepared paper to obtain a surface potential of 300V～ 400V filter base paper. The method of the invention uses plant fiber as the base material, introduces polyaniline into the fiber surface by chemical modification method, and the added functional auxiliary has excellent electret stability and good mechanical properties, which can greatly improve the filtration efficiency of the base paper. |