Regarding resins and ion exchange resins, many people are a little confused and wonder, are resins and ion exchange resins the same thing? Are resins and ion exchange resins the same? Let's take a look at it.
Resin is generally considered to be the normal metabolite or secretion of plant tissues, and often coexists with volatile oil in the secretory cells, resin channels or ducts of plants, especially in the ducts of the heartwood of perennial woody plants. A mixture of multiple components, It is usually amorphous solid, with a slightly shiny surface, hard and brittle, and a few are semi-solid. It is insoluble in water, nor does it absorb water to expand, and is easily soluble in most organic solvents such as alcohol, ether, chloroform. It is softened by heating, and finally melted There is dense smoke when burning, and has a special aroma or odor. It is divided into two categories: natural resin and synthetic resin.
The relative molecular weight is uncertain but usually high. It is a solid, medium-solid, pseudo-solid, and sometimes liquid organic substance at room temperature. It has a softening or melting temperature range, and has a tendency to flow under the action of external force, and it is often shell-shaped when broken. In a broad sense, it refers to polymers or prepolymers used as plastic substrates. Generally insoluble in water and soluble in organic solvents. According to the source, it can be divided into natural resins and synthetic resins; according to their different processing behaviors, there are thermoplastic resins. Different from thermosetting resin.
The full name of ion exchange resin is composed of classification name, skeleton (or gene) name, and basic name. The pore structure is divided into two types: gel type and macroporous type. Anyone with a physical pore structure is called macroporous resin, which is before the full name. Add "macropore". If the classification is acidic, add "yang" before the name, and if the classification is alkaline, add "yin" before the name. For example: macroporous strong acid styrene cation exchange resin.
Ion exchange resins can also be divided into styrene resins and acrylic resins according to the type of matrix. The type of chemically active groups in the resin determines the main properties and types of the resin. First, it is divided into two categories: cationic resin and anionic resin. They can be ion exchanged with the cations and anions in the solution respectively. Cation resins are divided into two types, strong acid and weak acid, and anion resins are divided into two types, strong alkaline and weak alkaline (or further divided into strong acid and medium Strong alkaline).
Ion exchange resin is a kind of synthetic polymer compound, which belongs to a kind of synthetic resin, so it can be said that ion exchange resin belongs to resin.