Since the outbreak of the COVID-19 epidemic, global medical and personal protective equipment, masks, have been in short supply. As a key material for mask filtration, melt-blown non-woven fabrics are the heart of medical surgical masks and KN95 masks. There was also a time when demand exceeded supply.
For this reason, a new filter material has emerged, which is the kn95 mask filter membrane.
A virus is a non-cellular life form that consists of a long chain of nucleic acids (DNA or RNA fragments) and a protein coat.
Viruses cannot survive independently, and the replication, transcription and translation of their genetic material must be completed within the host cell.
Once the virus leaves the host cell, it will quickly lose activity in the external environment and show no signs of life activity.
The filtration efficiency of the kn95 mask filter membrane can reach more than 95% for bacteria and PM2.5 particles in the air, reaching the filtration standard of KN95 masks.
The extremely high porosity and ultra-thin thickness of <5μm give it better air permeability, low breathing resistance and comfortable wearing.
In addition, the PTFE membrane is naturally hydrophobic, and the filtration mechanism is physical and mechanical interception. The interception rate will not be attenuated due to moisture in the exhaled breath. Compared with ordinary melt-blown cloth masks, the protective effect of electrostatic adsorption is more stable and lasting.
The kn95 mask filter membrane is prepared using a unique biaxial stretching technology, which can ensure complete retention of bacteria and other impurities while having a large flux.
The material is resistant to high temperatures, strong acids and alkali, and has wide chemical applicability. When used for gas filtration, it can achieve 100% retention of various phages, bacteria and particles above 0.02um.
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