The market demand for masks is now huge, and many manufacturers have taken advantage of this opportunity and started producing masks. As we all know, the core filter materials of masks are mainly melt-blown cloth and PTFE microfiltration membrane. So which one is better?
Melt-blown cloth is the core material of masks. Melt-blown cloth uses high-speed hot air flow to draw the thin flow of polymer melt extruded from the die spinneret, thereby forming very fine fibers and collecting them on the condensation curtain or roller, and at the same time bonding to itself to form a melt-blown cloth. Spray-on nonwovens. One ton of polypropylene melt-blown material can be made into 300,000 to 500,000 N95 masks, or 1 million disposable surgical masks. In addition to the price surge caused by its own production capacity shortage, the filtration efficiency of meltblown cloth itself is only 30%, and it can reach more than 80% after electret treatment and charging. Therefore, meltblown cloth masks are disposable and have an aging limit. Washing or storing them for too long will cause the charge to disappear and reduce the filtration effect.
It is the manufacturer that produces polytetrafluoroethylene microfiltration membrane, which can be used as the core filter material of masks. It can filter and intercept dust and aerosol particles that are larger than the fiber pore size, thereby preventing pathogenic microorganisms (such as viruses and small bacteria) or other harmful factors attached to dust and aerosol particles from coming into contact with the human body and entering the respiratory tract. The risk of people being infected or harmed is greatly reduced.
Polytetrafluoroethylene microfiltration membrane Compared with traditional melt-blown cloth, the filtration efficiency is higher. Melt-blown materials mainly rely on Electrostatic adsorption and interception, static electricity will reduce over time and lose filtration efficiency. The filtration mechanism of PTFE nano mask cloth is purely physical filtration, and the long-term storage efficiency will not be reduced. It has the characteristics of long service life, lightness and breathability, and is the future mask. new direction of development. Interested parties are welcome to enter the store for consultation.
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