Preparation method and use method of nanocellulose aerogel protective mask

Abstract

The invention discloses a preparation method of a nano-cellulose aerogel protective mask, which comprises the following steps: S1, adhering or coating first nano-fiber aerogel inside the surface layer of the mask, and adhering or coating a first water swelling material on one side of the first nano-fiber aerogel; the surface of the inner layer is coated with second nanofiber aerogel; the first water swelling material can absorb moisture of breathed gas or salt-containing solution; s2, a second water swelling material adheres to or coats the circumferential direction of the first nanofiber aerogel or the second nanofiber aerogel, and the second water swelling material forms an annular structure; and S3, compounding the surface layer and the inner layer of the mask. According to the mask, natural antibacterial fibrilia fabric serves as a surface layer and an inner layer, double-layer nanocellulose aerogel serves as a core layer, the KN95 protective mask is formed, and the mask achieves the antibacterial and hydrophobic effects by means of the efficient filtering and air permeability effects of a nanocellulose aerogel multi-stage pore structure.

Description

technical field [0001] The invention relates to the technical field of masks, in particular to a method for preparing and using a nano-cellulose airgel protective mask. Background technique [0002] As a new green nanomaterial, nanocellulose has received extensive attention in the field of energy storage in recent years. In addition to the natural advantages of abundant reserves and recycling, nanocellulose also has the advantages of fine nanostructure, good mechanical strength and low thermal expansion coefficient. [0003] Airgel is a light inorganic solid material with a three-dimensional network skeleton structure and nano-scale pores. It has extremely high porosity, specific surface area, extremely low density and solid content, chemical inertness and non-combustibility, and exhibits excellent It has the characteristics of heat insulation, fire prevention, sound insulation, shock absorption and energy absorption, and transparency. The thermal conductivity can be as low...

AI Technical Summary

Problems solved by technology

[0004] The masks in the prior art are generally polypropylene melt-blown masks or electrospun nanofiber masks, which have poor degradation performance, cannot produce natural antibacterial effects, and have poor filtering effects and hydrophobic and breathable effects

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