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Resin Introduction
Ion exchange resin is a kind of functional group (having the active group of ion exchange) with a network structure, insoluble polymer compounds. They are usually spherical particles. Ion exchange resins consist of a skeleton with a large spatial structure that supports the whole compound and an active group that provides an ion exchange action.
According to the pore structure, there are two kinds: gel type and macroporous type. The resin with physical pore structure is called macroporous type, and the resin with transparent or translucent gel form is called gel type. According to the nature of the active group, it is divided into two kinds of cation and anion exchange resin: those that can exchange water cations are called "cation exchange resins", and those that can exchange water anions are called "anion exchange resins".
Resin Performance Indicators
Mainly reflects the index of "effective particle size" and "uniformity coefficient".
Divided into "wet apparent density" and "wet true density".
Reflects the index of "crosslinking degree" and "porosity".
Reflects the change rate index of "shrinkage" and "expansion".
The working exchange capacity is an important indicator reflecting the size of the exchange capacity.
The direct index of the impact resistance of the resin.
Scope of Application
It is suitable for the treatment of desalination or ultrapure water. It is widely used in electronics, electric power, petroleum, chemical industry and other industries.
Frequently Asked Questions
An ion exchange resin is an insoluble polymer compound with a network structure containing functional active groups. Typically appearing as spherical particles, it consists of a large structural skeleton that supports the compound and active groups providing the ion exchange action.
The classification is based on their pore structure: macroporous type resins have a physical pore structure, while gel type resins feature a transparent or translucent gel form without permanent physical pores.
Cation exchange resins are capable of exchanging cations in water, whereas anion exchange resins are designed to exchange anions present in water.
The key performance indicators include particle size (effective size/uniformity), density (wet apparent/wet true), water content (crosslinking/porosity), swelling and transformation volume change rate, exchange capacity, and mechanical strength.
Ion exchange resins are primarily suitable for desalination and ultrapure water treatment. They are widely applied in electronics, electric power, petroleum, chemical, and other related industrial sectors.