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Membrane Materials
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Nafion
Type: Polymeric, Permeability: Selective for cations, Use: Fuel cells and chlor-alkali process
Alumina Membranes
Type: Inorganic, Permeability: Depends on pore size, Use: Microfiltration, ultrafiltration
PAN (Polyacrylonitrile)
Type: Polymeric, Permeability: Medium for gases, Use: Ultrafiltration
Silica Membranes
Type: Inorganic, Permeability: High for small molecules, Use: Gas separation
Cellulose Acetate
Type: Polymeric, Permeability: Medium for gases and liquids, Use: Reverse osmosis
Polysulfone
Type: Polymeric, Permeability: Moderate for gases, Use: Microfiltration
PDMS (Polydimethylsiloxane)
Type: Polymeric, Permeability: High for gases, Use: Drug delivery systems
Carbon Membranes
Type: Inorganic, Permeability: Varies, highly selective, Use: Gas separation, pervaporation
PVDF (Polyvinylidene fluoride)
Type: Polymeric, Permeability: Varies with treatment, Use: Water and wastewater treatment
PTT (Polytrimethylene Terephthalate)
Type: Polymeric, Permeability: Moderate for gases and liquids, Use: Packaging and fibers
Liquid Membranes
Type: Organic/Inorganic Hybrid, Permeability: Selective depending on solvent and carrier, Use: Separation of metal ions and organic compounds
PTFE (Polytetrafluoroethylene)
Type: Polymeric, Permeability: High for gases, Use: Chemical processing and purification
Ceramic Membranes
Type: Inorganic, Permeability: Depends on pore size, Use: Microfiltration and ultrafiltration
Zeolite Membranes
Type: Inorganic, Permeability: High for small molecules, Use: Separation of small gas molecules
Polyimide
Type: Polymeric, Permeability: High for gases, Use: Gas separation
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