Coated filter material uses a PTFE microporous membrane coated on the surface of general traditional filter materials. The PTFE microporous membrane is a three-dimensional mesh with no through holes and a cross microporous structure. This microporous filter material can Captures most dust particles so that dust cannot enter the membrane through the surface of the membrane.
The filtration method in which gas passes through and traps dust on the membrane surface is called surface filtration.
The mechanism is very simple. The pore size of the membrane is smaller than the pore size of the particles to be filtered. To achieve surface filtration, the key is to have a thin film material that is dense, has many micropores, and is easy to clean.
? The surface of the film is smooth and the friction coefficient is small. It is difficult to form a thick layer of dust on the surface of the film, and the dust can be peeled off naturally.
Dust removal from the membrane-coated filter material mainly utilizes the sieving effect of the PTFE microporous membrane. Dust particles will hardly penetrate the membrane and enter the interior of the filter material.
It can be seen that the surface filtration mechanism is the advantage of membrane-coated filter materials. Compared with conventional filter materials, its advantages lie in its surface filtration, high filtration efficiency, easy dust cleaning, high temperature resistance, corrosion resistance and other characteristics.
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