There are various types of filter elements on the market. Filter elements are generally divided into: air filter elements, liquid filter elements and oil filter elements. Different filter elements use different filter media. Different filter membranes are selected according to the objects of filtration. Hydrophilic membranes are generally used to filter aqueous solutions, hydrophobic membranes are used to filter organic solutions, and hydrophobic membranes are used to filter air. The editor here mainly introduces to you the hydrophilic membrane.
Polytetrafluoroethylene hydrophilic filter membranehas surface filtration The mechanism and the characteristics of small pore size and high porosity provide high flux that is difficult to achieve by other filtration membranes. Hydrophilic PTFE microporous filter membrane—replacing PES, N6, and PVDF filter membranes, polytetrafluoroethylene hydrophilic filter membrane is used for high-temperature liquid filtration with excellent biological reliability, chemical inertness, and low adsorption and high temperature resistance. The pore diameter is 0.2um, with large flux, high strength, and does not fall off at high temperatures. It is suitable for filtration of strong acid and strong alkaline solutions, terminal sterilization filtration of medicinal liquids, filtration of high-temperature liquids, water treatment and environments where other filter materials are not competent.
The F atom in the PTFE molecule covers the C-C bond, and the C-F bond has high energy and is particularly stable. It is not corroded by any chemicals except alkali metals and elemental fluorine. . The F atom in the PTFE molecule is symmetrical, and the two elements in C-F are covalently combined. There are no free electrons in the molecule, and the entire molecule is neutral. PTFE has excellent dielectric properties because there are no gram bonds in the molecular structure of PTFE, so its crystallinity is very high. Because there is an inert fluorine-containing shell outside the PTFE molecules, it has outstanding non-stick properties and low friction coefficient.
The currently independently developed polytetrafluoroethylene bubble point membranes include hydrophilic (polytetrafluoroethylene hydrophilic filter membrane) and hydrophobic Two differences: the filtration precision can be adjusted to obtain different bubble point pressures to meet the needs of different customers for different filtration precisions. High biological reliability, pore size between 0.1μm and 1μm. It can intercept almost all small bacteria and other impurities. It has strong chemical properties and is resistant to strong acids and alkalis. It has high porosity and interception rate, stable performance, and high air permeability despite high filtration effect.
It is a polytetrafluoroethylene hydrophilic filter membrane material manufacturer 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 combination of key technical parameters such as speed ratio, pressure ratio, and operating temperature, the air permeability, thickness, and void ratio can be adjusted online according to the ratio and pore-forming medium to meet your different requirements. Interested parties can enter the store for consultation.
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