Polytetrafluoroethylene air filtration membrane is a microporous film made of polytetrafluoroethylene as raw material and using special processes such as calendering, extrusion, and biaxial stretching.
The thickness of the membrane is about 0.01mm, and the air permeability is 60-80L/m2.s. It has smooth surface, chemical resistance, air permeability and impermeability, large air permeability, flame retardant, high temperature resistance, strong acid and alkali resistance, and non-toxic and other properties, it is widely used in flue gas dust removal and filtration of various industrial furnaces such as chemical industry, steel, metallurgy, carbon black, power generation, cement, waste incineration, etc. The main structure of the polytetrafluoroethylene air filtration membrane: 1. ptfe micropores The surface morphology of the film is a spider web-like microporous structure.
Pores are formed between the microfibers, and the arrangement direction of the microfibers is basically parallel to the stretching direction; the junction of the fiber bundles is the node, which is formed by the entanglement of many microfibers.
2.PTFE membrane is an asymmetric membrane, and the micropore size is different on the front and back sides of the membrane.
3. The cross-sectional micropore size of the membrane is larger than the micropore size on its surface, and the vertical and horizontal micropore sizes are also different, with the longitudinal micropores being larger than the transverse ones.
4. The cross-section of the membrane is a network structure. The three-dimensional structure of the pores has very complex changes such as network connectivity, hole nesting, and channel bending. There may be multiple micropores forming a channel, or there may be one channel. Micropores are connected to multiple channels? It is a manufacturer of polytetrafluoroethylene air filtration membranes that specializes in R&D, production and sales.
The products we produce have good air permeability and stable performance. They are all produced from imported raw materials, with finer molecular weight, cleaner quality and better uniformity.
We have a complete set of domestically advanced production lines that can be customized according to user requirements.
The optimized combination of key parameters such as speed ratio, pressure ratio, and operating temperature of PTFE membrane technology can realize online control of air permeability, thickness and void ratio according to the ratio and pore-forming medium to meet your needs. Different requirements.
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