Comparatively even pore size, high porosity, no media shedding, thin texture, low resistance, fast filtration speed, minimal adsorption.
Flammable, should pay attention to sealing, moisture-proof, fire prevention. Microporous filter membrane, there are hydrophilic and hydrophobic.
Microporous filter membrane from the structure analysis, is a very thin filter membrane, inside the porous sponge-like structure. The common pore size ranges from 0.1 micron to 10 micron. Nowadays, the manufacturer of microporous filter membrane, and according to its morphological differences, will be classified as:
Flat Sheet Membrane (Flat Sheet Membrane), Hollow Fiber Membrane (Hollow Fiber Membrane) and Tubular Membrane (Tubular Membrane). Among them, the flat paper-type filter membrane can be further subdivided into "unsupported flat paper-type filter membrane" (Unsupported) and "supported flat paper-type filter membrane" (Supported) according to its structural differences. Depending on the technology required for the manufacture of both, the production process of "Unsupported" is more sophisticated and complex than that of "Supported".
Microporous filtration is a sieving process, which belongs to precision filtration. Microporous precision filtration refers to the filtration technology that removes particles from 0.1μm to 10μm. Generally speaking, the filtration mechanism is divided into two categories: surface-type and deep-type. Microporous filtration is a sieving process and belongs to precision filtration. The filtration mechanism of MF membrane manufactured by advanced technology is surface type filtration. Because the filter pore size is fixed, it can ensure the precision and reliability of filtration. Deep filtration is divided into non-fixed irregular pore size and fixed irregular pore size, the former, such as chemical fiber wire-wound cartridges, is generally only used as a relatively rough pre-filtration. Pore size Purpose 3.0-10.0μm Security filtration before RO desalination 0.6-0.8μm Particle filtration in high-dose injection, I.V. solution, beer, beverage filtration, clarification filtration of oil photoresist, paint solvents, etc. 0.45μm Terminal filtration of high-purity water for electronic industry, filtration of MOS reagent 0.2μm Sterilization filtration of pharmaceutical solution, biological agent and heat-sensitive fluid, filtration of ultrapure water for electronic industry, low-degree filtration of ultrapure water for electronic industry. Ultrapure water terminal filtration, clarification filtration of low alcohol Microporous filtration operation has two kinds of no flow (Deadend) and crossflow. The former is applied to dilute (solid content) material and smaller scale applications. Filter membranes are made into cartridges and are mostly disposable. Staggered flow operation, also known as tangential flow operation, for the suspended particles size, concentration changes are not very sensitive, suitable for large-scale applications, such operation of the filter membrane components need to be frequently cleaned periodically, regeneration.