The full name of ion exchange resin consists of classification name, backbone (or gene) name, and basic name. Pore structure is divided into gel type and macroporous type. Any resin with physical pore structure is called macroporous resin, and "macroporous" is added before the full name. If the classification is acidic, "Yang" should be added before the name, and if the classification is alkaline, "Yin" should be added before the name. Such as: macroporous strong acid styrene cation exchange resin.

Ion exchange and adsorption resins are widely used in chemical, metallurgy, water treatment, biomedicine, food, electronics and other fields because of their high adsorption efficiency, stable performance, long service life and high cost performance.

The particles of the ion exchange resins currently used in chemical desalination are complete spheres. During use, a small amount of resin will be broken due to wear, expansion and contraction, which is normal.