Toluene diisocyanate manufacturer Knowledge Properties and types of ion exchange resins

Properties and types of ion exchange resins

Ion exchange resin is an insoluble polymer electrolyte composed of a cross-linked polymer skeleton and an ionizable group. It can carry out an exchange reaction with ions with the same charge in the liquid phase, and this exchange reaction is reversible. When the conditions change, it can be restored to its original state by using an appropriate electrolyte (such as acid or alkali, etc.) for reuse. This is called regeneration of the ion exchange resin.

1. Types of ion exchange resin

Ion exchange resins come in many varieties and can be classified according to different principles.

ion exchange resin

(1) Classified according to the type and function of the exchange group This is a very common classification method, which can be divided into five categories:

Substituents on the benzene ring of strong acid cation exchange resin R (similar below) represents, -SO3H

Weakly acidic cation exchange resin R: -COOH,- PO3H2,-OH,-PO2Hz ,-AS sub>O3H2,-SeO3H

Strongly basic anion exchange resin R: =N+ X W three P+X-, three S+XIX are halogen)

National weak base anion exchange resin R: -CONH(CH2>3 N(CH^ j,-(CH,)tN-C2H5()H

⑤Amphoteric ion exchange resin R: -S0H+N,(CFOzX-

(2) Follow the steps for preparing polymer matrix Raw material classification can be divided into four categories:

Styrene system resin,

Acrylic-methacrylic system resin;

Phenol-m-phenylenediamine system resin;

Epichlorohydrin system resin.

(3) Classified by polymerization reaction type Divided into two categories:

Addition polymerization system, styrene and acrylic acid-methyl Acrylic system resin;

Condensation polymerization system, phenol-m-phenylenediamine and epichlorohydrin system resin.

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.chemicalchem.com/archives/467

author:

Previous article
Next article
Contact Us

Contact us

+86 - 152 2121 6908

Online consultation: QQ交谈

E-mail: sales@newtopchem.com

Working hours: Monday to Friday, 9:00-17:30, closed on holidays
Follow wechat
Scan wechat and follow us

Scan wechat and follow us

Follow Weibo
Back to top
Home
E-mail
Products
Search