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Issue 5/2020 - PTFE for protective masks to respond to outbreaks

 Last Update: 2022-11-14
 Source: Internet
 Author: User

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air high

membrane filtration method

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Recently, Zhonghao Chenguang Chemical Research Institute has developed a new anti-virus mask - e-PTFE microfiltration membrane plane protective mask
.

e-PTFE microporous membrane is a kind of microporous film formed by polytetrafluoroethylene (PTFE) resin after extrusion and stretching, its microporous distribution is uniform, the pore size is about 100 times smaller than that of meltblown cloth, the porosity is as high as 80%, and it has good air permeability and excellent filtration efficiency
.
Different from the principle of electrostatic adsorption of traditional meltblown cloth masks, e-PTFE microporous membrane masks adopt a physical barrier method, so they have the advantage of
being washed multiple times to improve the utilization rate.
The company's e-PTFE microporous membrane mask prepared with non-perfluorooctanoic acid PTFE resin has been tested by national authorities and has a filtration efficiency of 99%, while the exhalation and inhalation resistance is far below the standard limit, which can effectively achieve a good effect
of being breathable and impermeable, filtering PM2.
5, and resisting microorganisms and bacteria entering the human body.

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