Key materials of N95 masks Disposable mask filter material
After the outbreak of the new crown epidemic, meltblown cloth, the key material for masks, is in urgent need across the country, and it is a key material for making medical masks and KN95 and N95 masks.
Under such circumstances, some film companies have used high-tech methods to make films and invested in the queue of alternatives to melt-blown cloth. A film-making material has quietly appeared in the field of vision of people in the film industry. This material It is a disposable mask filter material.
Melt-blown cloth is the core material of masks. Melt-blown cloth is mainly made of polypropylene as the main raw material, and the fiber diameter can reach 1 to 5 microns.
The ultrafine fibers with many voids, fluffy structure and good anti-wrinkle ability. The unique capillary structure increases the number and surface area of fibers per unit area, so that the melt-blown cloth has good filtering, shielding, thermal insulation and Oil absorbent.
Can be used in fields such as air and liquid filter materials, isolation materials, absorbent materials, mask materials, thermal insulation materials, oil-absorbent materials and wipers.
The disposable mask filter material adopts a special processing technology and is a microporous film made by calendering, extrusion, and biaxial stretching.
This kind of membrane has excellent breathability, corrosion resistance, aging resistance, high temperature resistance and other properties.
Three-dimensional mesh structure, no through holes.
The porosity and pore size distribution are important indicators for measuring films.
The porosity of the film is generally between 80% and 95%. A high porosity will increase the ventilation; the pore size distribution is concentrated, indicating that the membrane pore size is uniform.
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