With the large-scale outbreak of the coronavirus, one of the issues that everyone is most concerned about now is the issue of mask protection.
So which masks have a protective effect on this new coronavirus? The answer is medical surgical masks and N95 masks, and the production of these two masks requires the use of polytetrafluoroethylene mask film.
The reason why the N95 mask is called “N95” is because it is one of the nine types of anti-particulate masks certified by the National Institute for Occupational Safety and Health (NIOSH). The name represents its filtration level: “N” refers to The filter material in the middle of the mask, the N series filter can protect non-oily suspended particles, and should be replaced after a cumulative use of more than 8 hours.
And “95” represents the minimum filtration efficiency of 95%.
Certified by the US NIOSH, the non-oily particle filtration efficiency is ≥95%.
Recently, the China Composite Materials Society published an article proposing a new direction for the development of epidemic prevention – polytetrafluoroethylene mask membrane masks.
Nano mask has become an efficient medical protective mask due to its efficient filtration performance.
It is similar to ordinary medical masks. Nano antibacterial masks also include an outer layer, a middle layer, an inner layer, ear hooks, nose clips and other parts.
The special feature of nano-mask is that the middle layer is made of nano-membrane with smaller pore size (100-200 nanometers), which is generally made of polytetrafluoroethylene mask membrane material.
Undertake various filter material coating processing services. Our company will perform coating processing according to the coating substrate provided by the customer or the coating substrate specified by the customer.
The key to its technology is the optimized combination of speed ratio, pressure ratio, operating temperature and other parameters. Our company can realize online control of air permeability, thickness and void ratio according to the ratio and pore-forming medium to meet the different needs of users.
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