What is the porosity of ptfe microporous filtration membrane?

ptfe microporous filter membrane, foreign name: PTFE microcellular film, is extruded from polytetrafluoroethylene A porous product obtained from formed rods and strips, semi-finished products that are rolled into films, stretched at temperatures below the melting point, and heat set.

It is reported that in the past, most of the microporous filter membranes on the market were uniformly structured membranes. During use, the deep layer (inside) of the membrane was severely blocked and difficult to clean. In order to change the clogging situation and facilitate equipment cleaning, the structure of the microporous filtration membrane needs to be changed urgently. Among them, asymmetric membranes have the characteristics of small pores in the separation layer and large pores in the support layer. Therefore, particles or colloids are only trapped on the surface of the membrane, and particles that pass through the separation layer are not retained inside the membrane. At present, asymmetric microporous filtration membranes have received widespread attention from the market.

The porosity of ptfe microporous filter membrane can reach more than 85%, and the air can flow smoothly. The membrane pore size is 0.2-3μm, which can effectively isolate water points, and the waterproof grade can reach IPX7 or above. Protect electronic instruments from becoming unusable due to moisture or water. Compared with other breathable filter materials, it has excellent air permeability. It is difficult to form a thick dust layer on the surface of the film, and the dust can be naturally peeled off.

It is a manufacturer of ptfe microporous filter membrane environmentally friendly materials that specializes in R&D, production and sales. Our company is different from other manufacturers. Our company can according to the user’s requirements. By optimizing the key technical parameters of speed ratio, pressure ratio, operating temperature and other parameters, online control of air permeability, thickness and void ratio can be achieved based on the ratio and pore-forming medium to meet your different requirements. Interested parties can enter the store for consultation.

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