Title:
METHOD FOR PREPARING MULTI-SCALE CELLULOSE NANOFIBER-BASED HIGH EFFICIENCY AIR FILTER MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/095099
Kind Code:
A1
Abstract:
A method for preparing a multi-scale cellulose nanofiber-based high efficiency air filter material. The method for preparing a multi-scale cellulose nanofiber-based high efficiency air filter material comprises the following steps: cellulose extraction: performing pretreatment on multi-scale cellulose, and using a physical treatment method and a chemical treatment to assist in extracting multi-scale cellulose nanofibers; electrospinning: performing electrospinning treatment on the extracted multi-scale cellulose, and machining and forming the cellulose nanofibers; antibacterial fiber treatment: treating chitosan fibers and ramie fibers, and uniformly mixing the two fibers; blending treatment: blending antibacterial fibers with the spun multi-scale cellulose nanofibers and aramid fibers; multi-layer combination: performing cutting according to the size of a filter element to obtain a filter piece; and embedding and drying. Disclosed is a method for preparing a multi-scale cellulose nanofiber-based high efficiency air filter material by means of electrospinning.
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Inventors:
MA XIANG (CN)
Application Number:
PCT/CN2020/128894
Publication Date:
May 12, 2022
Filing Date:
November 16, 2020
Export Citation:
Assignee:
SUZHOU NASHENGYUAN NEW MATERIAL TECH CO LTD (CN)
International Classes:
B01D39/16; B01D46/00; D01F2/00
Foreign References:
| CN106987922A | 2017-07-28 | |||
| CN107042668A | 2017-08-15 | |||
| CN107469614A | 2017-12-15 | |||
| CN103173892A | 2013-06-26 | |||
| CN103520999A | 2014-01-22 | |||
| US4225442A | 1980-09-30 | |||
| JP2001062224A | 2001-03-13 |
Attorney, Agent or Firm:
HEFEI KERONG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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