What are the materials used for ultrafiltration membranes? What are their characteristics?
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I’m familiar with some commonly used materials; sailors can discuss them together~
This post was last edited by ltld001 on 2019-11-14 at 11:17. Material: PVC. Performance features: It has better strength and elongation than PAN, is less prone to wire breakage, is readily available in large quantities, and is inexpensive. The disadvantage is that it is a non-hydrophilic material, and hydrophilic modification is required to produce ultrafiltration membranes with excellent performance. Application areas: Used for water purification filtration and industrial water treatment.
Material: PAN Performance features: PAN is a membrane material that was used quite early on; it is a hydrophilic material that facilitates film formation. However, it has low strength and high brittleness, as well as weak resistance to acids and alkalis, but the cost of film production is low. Application areas: Used for water purification filtration, especially in household water purifiers.
This post was last edited by ltld001 on 2019-11-14 at 11:18. Material: PVDF. Performance features: The main advantage of this material is its high elongation rate, and it does not break easily. It has excellent acid and alkali resistance, strong resistance to pollution, as well as tolerance to chemical cleaning and high-concentration residual chlorine solutions. Its disadvantages are high material costs, low filtration precision, and low surface strength. Application areas: Suitable for industrial wastewater treatment.