Production of polytetrafluoroethylene high temperature membrane

Filtration is a common separation and purification method, usually used for the separation of liquid or gas mixtures. Polytetrafluoroethylene high-temperature membrane is a material often used in filtration.

Dust particles in the air undergo inertial motion or Brownian motion with the air flow. When the moving dust particles hit the filter medium that can intercept the dust particles without causing excessive resistance to the air flow, the fibers of the filter medium will It forms a barrier to particles. When the airflow changes direction, the dust particles deviate from the direction due to inertia and hit the fibers and are bonded. The main mechanisms include inertial effect, interception effect, diffusion effect, sieving effect, electrostatic effect and gravity effect.

Polytetrafluoroethylene high-temperature membrane is a polymer compound polymerized from tetrafluoroethylene. It is prepared through a biaxial stretching process and is commonly known as the “King of Plastics.” Polytetrafluoroethylene (ptfe) material has a smoke and dust emission rate close to zero, and the dust removal efficiency can reach more than 99.99%. The minimum pore size of the film can reach 0.3um, which can capture most solid particles and liquid droplets. The dust layer formed by filtration is easy to split, and the filter material has good air permeability. It is hydrophobic, and the adhesion between the dust layer and the filter material is small, making it easy to split. It can fall off by its own weight without external force, and the dust can be cleaned more thoroughly.

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