Ultrafiltration (UF) : a solution separation device with ultrafiltration membrane filaments as the filter medium and pressure difference on both sides of the membrane as the driving force.Ultrafiltration membranes only allow the penetration of solvents (such as water molecules), inorganic salts, and small molecular organics, while trapping large molecular substances such as suspensions, colloids, proteins, and microorganisms in the solution, so as to achieve the purpose of purification and separation.Its working principle is: in the pressure drive, uses the screening function of the membrane itself to make the material to be purified and concentration.An ultrafiltration membrane is composed of hundreds and thousands of tiny hollow fiber filaments. Generally, the ultrafiltration membrane with the inner diameter of hollow fiber membrane between 0.6-6mm is called capillary ultrafiltration membrane. Due to its large inner diameter, the capillary ultrafiltration membrane is not easily blocked by large particles.
1. Good hydrophilicThe ultrafiltration membrane is treated by special hydrophilic treatment, the membrane filament has long-term hydrophilic energy, and the hydrolytic antenna decreases from 79-90 degree before modification to 30 to 35 degree.High water capacity can be obtained under low transmembrane pressure, and the pollution resistance of the filaments can be improved.2. High filtering accuracyWith uniform micropores smaller than 0.1 micron, it can remove microorganisms, colloids, diatoms and other substances causing turbidity.3. Good mechanical strengthThe mechanical strength of the ultrafiltration membrane reflects the ability of the ultrafiltration membrane to resist breaking, which makes the ultrafiltration membrane lose its separation performance.4. Long life and strong anti-pollution abilityIt has good chemical resistance, oxidation resistance and photoaging resistance.Various methods can be used for repeated cleaning to remove contaminants and restore fluxes.5. Stable product performanceThe supply of raw materials, preparation process and product testing are under monitoring to ensure the quality of raw materials, consistent and accurate control in the preparation process and 100% testing of the product to ensure the stability of the product