ion exchange membrane

What is an ion exchange membrane? Ion exchange membrane, also known as electrodialysis membrane, is a thin film made of polymer materials that have selectivity for ions. Ion exchange membrane is made of ion exchange resin, so both ion exchange resin and ion exchange membrane can be divided into two types: anion and cation; Cation exchange membrane, due to the negative charge of the fixed groups inside the membrane, anions are repelled in solution and cannot pass through, only cations are allowed to pass through; Anion exchange membrane, due to the positive charge of the fixed groups inside the membrane, positive ions are repelled in solution and cannot pass through, allowing only anions to pass through.

Preparation and modification of ion exchange membrane, also known as electrodialysis membrane. The main component of ion exchange membrane is resin phase, and binders, plasticizers, coloring agents, anti-aging agents, antioxidants, release agents, etc. can be added as needed. According to the main components of ion exchange membrane, it can be divided into homogeneous membrane and heterogeneous membrane.