source:
Release time:
2018
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03
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29
Organic membranes are the most widely used membranes in industrial processes due to their high-packing density, small footprints, and lightweight characters. Among the organic membranes, porous poly(tetrafluoroethylene) (PTFE) membrane exhibits outstanding chemical stability, high heat resistance, strong hydrophobicity, and high fracture toughness due to the strong C-C and C-F bonds and the carbon backbone, which is protected by the uniform helical sheath formed by the electron cloud of the fluorine atoms. These properties make it suitable for a variety of applications, such as exhaust-gas treatment, membrane distillation (MD), osmotic distillation (OD), and oil-water separation.The requirement for specific membrane properties varies with its targeted application. PTFE membranes were...