Physical and mechanical properties of polytetrafluoroethylene mask membrane

Polytetrafluoroethylene mask film is often used in the production of medical masks, and the results of some academic studies show that , using this material can provide better filtration function, permeability, antibacterial properties and wear resistance.

Spunbond nonwoven fabric: Spunbond nonwoven fabric uses the principle of chemical fiber spinning to lay continuous filament fibers into a shape during the polymer spinning process. Net, fiber net is made into cloth by mechanical, chemical or thermal bonding reinforcement. Its structural characteristics make the fiber net randomly composed of continuous filaments and has good physical and mechanical properties.

The dust removal efficiency of polytetrafluoroethylene mask membrane can reach more than 99.9995%. The minimum pore size of the film can reach 0.1um, which can capture most solid particles and liquid droplets. Since the pore size of the mask film is much larger than water vapor molecules, and polytetrafluoroethylene is a hydrophobic material, water droplets cannot penetrate the micropores, so it has good Moisture permeable, breathable and waterproof. The melting point is 164~170℃, and the products can be sterilized at temperatures above 100℃.

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