阳离子树脂是以苯乙烯和二乙烯苯聚合， 经硫酸磺化而制得的聚合物。 生产过程中不含有明 胶及其它任何动物提取物。阳离子交换树脂遇水可将其本身的某一种具有活性的离子和水中某电离子相互交换，即发生置换反应，去除水中可溶解的离子。阳离子交换树脂有粉状和球状，都是人工合成的
Cationic resin is polymerized by styrene and two ethylene benzene and sulfated by sulfuric acid. Gelatin and other animal extracts are not included in the production process. The cation exchange resin can exchange a certain kind of active ion with a certain electric ion in water, that is, the replacement reaction is taken to remove the soluble ions in the water. Cation exchange resins are powdery and spherical. They are all synthesized.