PTFE hydrophilic filter membranes are modified from hydrophobic PTFE and include: PTFE hydrophilic smooth membranes and PTFE hydrophilic composite membranes.
PTFE hydrophilic smooth membranes possess the following characteristics: excellent hydrophilicity, high hydrophilic stability, and good chemical resistance and temperature tolerance. They can be widely used for filtering various liquids, including corrosive liquids such as strong acids and strong bases.
PTFE hydrophobic filter membranes are made from naturally hydrophobic polytetrafluoroethylene polymer and include: PTFE hydrophobic smooth membranes and PTFE hydrophobic composite membranes.
Hydrophilic polyvinylidene fluoride (PVDF) membranes are hydrophilically modified based on hydrophobic PVDF membranes, reducing the surface contact angle and enhancing hydrophilicity. Hydrophilic PVDF membranes exhibit extremely low protein adsorption while maintaining exceptionally high water flux and broad chemical compatibility. Consequently, PVDF membranes are frequently used for filtering culture media and other protein solutions. We offer filter membranes with pore sizes ranging from 3 μm to 0.1 μm.
The hydrophobic PVDF filter membrane is made from a naturally hydrophobic polyvinylidene fluoride polymer. It exhibits excellent chemical compatibility, corrosion resistance, and resistance to radiation sterilization. It is ideally suited for sterile filtration applications involving organic solvents, mixed solvents, acidic solutions, chemical intermediates, biological products, fermentation processes, and more. The membrane boasts outstanding thermal stability and antioxidant properties, making it applicable across a wide range of fields. We offer membranes with pore sizes ranging from 3 μm to 0.1 μm.
The PTFE distillation membrane developed by BlueTech Filtration achieves a perfect combination of high strength, high water-pressure resistance, and high gas permeability. The intrinsic hydrophobicity of the PTFE membrane ensures that aqueous solutions on either side cannot pass through the membrane pores into the other side. At the same time, however, a pressure difference exists across the membrane. As a result, volatile components in the feed liquid can pass through the PTFE membrane pores in gaseous form, thereby achieving the desired separation effect.
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