Brief description and composition characteristics of pp filter element

The PP filter element is made of polypropylene (PP) hot-melt method, and its micron number ranges from 1um to 300um. The filter element has no inner shaft and adopts inner dense outer sparse design, which can not only maintain stable flow, pressure difference and service life, but also has excellent depth filtration effect and pollutant accumulation. It is a kind of high efficiency, low pressure difference and long service life. And a wide range of filters. Because the chemical composition of PP is clean and meets the food hygiene standards, it will not cause secondary pollution to the liquid to be filtered due to the material. It has the characteristics of large flow, high precision, corrosion resistance, and high pressure resistance. It is widely used in PCB, electroplating , pure water, pre-filtration of food and drinking water; pre-filtration of RO, etc. The PP filter element is made of ultra-fine polypropylene fibers by thermal fusion entanglement. Microfibers rely on self-adhesion and entanglement to randomly form a three-dimensional microporous structure in space, and the connection between fibers does not require any adhesive, especially with the characteristics of gradient change of radial fibers, which is the best choice for porous and fabric filter media. Complex. On the one hand, it can form deep filtration (a feature of porous filter materials), and on the other hand, it can form surface filtration (a feature of fabric filter materials). It is a composite filter material that integrates pre-filtration, fine filtration and gravity sedimentation. It has been widely used in the purification of drinking water, the filtration of industrial pure water and the filtration of other fluids. PP filter element has high filtration efficiency, small pressure loss, stable filtration efficiency, long service life, low filtration cost, good safety and strong adaptability. The new melt-blown filter element is different from the traditional fabric filter material. The wire diameter of this material is very small, often less than 5-25 microns, and the fibers present an irregular porous network structure, the average diameter is less than 40 microns, and the average porosity is greater than 75%. The structure is very reliable for the control of filtration precision. The inner fine fiber layer of the PP filter element and the outer coarse fiber layer form a double-layer fiber structure, which effectively reduces the pressure loss and maintains a stable filtration efficiency. The pore size of the PP filter element is distributed in a gradient along the diameter direction. During filtration, the part with large pore size can sufficiently accommodate larger particles of impurities, ensuring that the filter element will not be blocked quickly, and at the same time providing good shape rigidity; part with small pore size It can block fine particles and ensure the filtration accuracy, thereby avoiding the disadvantages of fast clogging and short service life of the high-precision filter element, and also reducing the filtration resistance, reducing the energy consumption of the equipment and prolonging the service life of the filter element. The filter material of PP filter element is made of non-toxic and odorless PP material. The source of raw materials is reliable and safe. No other chemical substances are generated during the production process. It can be directly used in drinking water and beverage products. When no soluble material appears. Mildew resistance, acid and alkali resistance, organic or inorganic solvent resistance (except chlorosulfonic acid, concentrated nitric acid and strong oxidants).

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