As the saying goes: the membrane material is the “active” part of the filtration product, which is the part where the product plays a role. Today let us learn about ptfe ultrafiltration membrane.
The work of ultrafiltration membranes is mainly based on the screening mechanism, and water purification is carried out based on the working pressure and the pore size of the membrane.
Taking hollow fiber as an example, the water inlet method can be divided into external pressure type: raw water enters from outside the membrane fiber, and purified water is produced from inside the membrane fiber.
On the contrary, it is an internal pressure type.
The working pressure of the internal pressure type is lower than that of the external pressure type.
Ultrafiltration membranes are widely used in many fields such as advanced treatment of drinking water, industrial ultrapure water and solution concentration and separation.
During the ultrafiltration process of PTFE ultrafiltration membrane, the aqueous solution flows through the membrane surface under pressure, and the solvent (water) and small molecule solutes that are smaller than the membrane pores are permeable to the membrane and become purification liquid (filtrate). Solutes and solute groups with large membrane pores are trapped and discharged with the water flow to become concentrated liquid.
The ultrafiltration process is dynamic filtration, and separation is completed under flow conditions.
The solute is only deposited to a limited extent on the membrane surface, and the ultrafiltration rate attenuates to a certain extent and tends to equilibrium, and can be restored through cleaning.
PTFE membrane manufacturer specializes in the production of PTFE ultrafiltration membranes. It has a full set of advanced production equipment and technology. It also has an advanced clean room and an independent composite slitting workshop to ensure the production quality of PTFE membranes; the product materials produced are all Using imported raw materials, it has high uniformity, stable performance, good air permeability, and the filtration efficiency can reach 99.999995%! It can basically meet the filtration efficiency grade requirements of sub-high efficiency, high efficiency and ultra high efficiency filters.
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