Antibacterial air filtering material as well as preparation method and application thereof
A technology of antibacterial agents and antibacterial components, applied in the field of antibacterial air filter materials and their preparation, can solve the problems of non-woven fabrics that are difficult to degrade, have no antibacterial function, and filter material pollution, etc., to achieve high value-added utilization and broaden the application field, the effect of reducing production cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0099] The selected agricultural and forestry waste raw materials are poplar leaves. Weigh 18.0g of BmimCl ionic liquid, 1.6g of poplar leaves, and 0.2g of AgCl, and stir and dissolve at 120 °C. After about 120 minutes, a uniform brown solution is formed. The temperature is raised to 140 °C, and the AgCl is stirred for 12 hours. + ion reduction. Weigh 0.2 g of wood pulp, add it to the above solution, stir and dissolve at 80°C, and completely dissolve the wood pulp after about 120 minutes. The mass fraction of poplar leaves / AgCl / wood pulp / BmimCl solution is 8%, the mass fraction of AgCl is 1%, and the mass fraction of wood pulp is 1%. Biomass microfibers were prepared from poplar leaves / AgCl / wood pulp / BmimCl solution by air spinning process with water as coagulation bath. Then, add 1.0 g of 1wt% cellulose nanofiber aqueous dispersion (cellulose nanofiber diameter is about 20nm) (cellulose nanofiber aqueous dispersion is a negatively charged cellulose nanofiber aqueous dispers...
Embodiment 2
[0104] The selected agricultural and forestry waste raw material is Ginkgo biloba. Weigh 18.0 g of 1-ethyl-3-methylimidazolium acetate (EmimAc) ionic liquid, and 2.0 g of dried ginkgo leaves were stirred and dissolved at 100 ° C. After about 120 minutes, a uniform brown solution was formed. Ginkgo biloba / EmimAc The mass fraction of ginkgo leaves in the solution is 10%. Biomass-based microfibers were prepared from Ginkgo biloba / EmimAc solution by air spinning process with 50wt% ethanol aqueous solution as coagulation bath. Then, the biomass-based microfibers were immersed in a 1 wt % sodium carboxymethyl cellulose aqueous solution, filtered and dried to prepare a negatively charged non-woven material. The fiber diameter after drying is about 10 μm.
[0105] The filtration efficiency of the non-woven fabric was tested according to the particle filtration efficiency (PFE) condition described in 5.6.2 of the YY 0469-2011 standard. The particle filtration efficiency of the obtai...
Embodiment 3
[0109] The selected agricultural and forestry waste raw materials are ginger sticks. Weigh 18.4g of 1-butyl-3-methylimidazolium chloride (BmimCl) ionic liquid, 1.6g of dried ginger rods were stirred and dissolved at 90°C, and after about 120 minutes, a uniform brown solution was formed, ginger rod / BmimCl solution The mass fraction of the middle ginger rod is 8%. Biomass-based microfibers were prepared from the ginger rod / BmimCl solution through an air spinning process with water as a coagulation bath, and then the biomass-based microfibers were immersed in a 2wt% sodium alginate aqueous solution. Negatively charged non-woven fabrics are prepared by filtering and drying. The fiber diameter after drying is about 10 μm.
[0110] The filtration efficiency of the non-woven fabric was tested according to the particle filtration efficiency (PFE) condition described in 5.6.2 of the YY 0469-2011 standard. The particle filtration efficiency of the obtained nonwoven fabric was 91.2%. ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Diameter | aaaaa | aaaaa |
| Diameter | aaaaa | aaaaa |
| Diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More