The filtration effect of polytetrafluoroethylene mask membrane
Under the epidemic, we fully understand that wearing a mask is to isolate the spread of the new coronavirus and protect the susceptible It is a very important means to achieve effective personal protection. So what kind of mask can really block the virus and play a protective role? Here, the editor recommends masks made of polytetrafluoroethylene mask film.
Common masks on the market mainly consist of a 3-layer structure. The outermost layer is usually made of polypropylene spunbond non-woven fabric (PP spunbond non-woven fabric), which has certain The waterproof function can prevent a small amount of liquid and droplets from entering the inside of the mask and provide certain support; the middle layer is usually made of polypropylene melt-blown non-woven fabric (high-efficiency melt-blown filter cloth). This layer is the mask’s most effective protection against bacteria and viruses. The main blocking and filtering functions;
The polytetrafluoroethylene mask membrane has the advantages of high tensile strength, high conductivity, and good chemical properties. The thickness can be between 2-100um, the porosity can be 50%–80%, and the pore diameter can be between 0.1-10um, which is one ten thousandth of the diameter of a water droplet, but about 700 times larger than the size of water vapor molecules. Liquid water If it cannot get in, sweat can escape, thus achieving excellent waterproof and moisture permeability.
The polytetrafluoroethylene mask membrane produced has strong hydrophobicity, chemical resistance, waterproofness and low wind resistance, and can achieve high dust removal efficiency. For some diameters of 0.1um-0.3 um extremely small particles, the filtration level can reach H13-U16. In addition, the biaxially stretched film can undoubtedly achieve ultra-low emissions in intercepting various types of dust generated during the production process of the company, and it fully complies with current environmental protection standards. Interested parties can enter the store to inquire and purchase!
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