Membranes
Membranes for various applications
Our membranes offers cutting-edge solutions for a variety of separation and filtration applications. Crafted from advanced polymers and ceramics, these membranes are known for their versatility, durability, and high performance.
A proton-exchange membrane, or polymer-electrolyte membrane (PEM), is a semipermeable membrane generally made from ionomers and designed to conduct protons while acting as an electronic insulator and reactant barrier, e.g. to oxygen and hydrogen gas. This is their essential function when incorporated into a membrane electrode assembly (MEA) of a proton-exchange membrane fuel cell or of a proton-exchange membrane electrolyser: separation of reactants and transport of protons while blocking a direct electronic pathway through the membrane. PEM fuel cells use a solid polymer membrane (a thin plastic film) which is permeable to protons when it is saturated with water, but it does not conduct electrons.
An anion exchange membrane (AEM) is a semipermeable membrane generally made from ionomers and designed to conduct anions while being impermeable to gases such as oxygen or hydrogen. Anion exchange membranes are used in electrolytic cells and fuel cells to separate reactants present around the two electrodes while transporting the anions essential for the cell operation. An important example is the hydroxide anion exchange membrane used to separate the electrodes of a direct methanol fuel cell (DMFC) or direct-ethanol fuel cell (DEFC).
The selection includes:
- Polyethylene Membranes: Highly resistant to chemicals and abrasion, these membranes are ideal for demanding industrial processes like wastewater treatment and chemical separation.
- Polypropylene Membranes: Lightweight and thermally stable, suitable for microfiltration and applications in the food and beverage industry.
- Polysulfone Membranes: Offering superior mechanical strength and heat resistance, perfect for ultrafiltration in biopharmaceuticals and lab settings.
- Polyamide Membranes: Known for their high selectivity and exceptional performance in reverse osmosis systems for desalination and water purification.
- Polyvinylidene Fluoride (PVDF) Membranes: Featuring outstanding chemical resistance and durability, ideal for applications in harsh environments such as gas separation and industrial filtration.
Each membrane is designed to deliver efficiency, reliability, and long-term operational value, meeting the rigorous demands of modern industries. Explore the category to find the optimal membrane solution tailored to your specific needs.