一种可吸收数百倍，甚至于千倍于本身重量的水，且可保持吸水后不流动而呈膨胀状态的高分子。
One can absorb hundreds of times, even thousands of times in the class itself heavy water, and can not process is to keep the state of the water after the expansion of polymer.
应用
application
Application
Application
1)医疗卫生：卫生巾，尿垫，尿裤，医用床垫，吸水纸，缓释性药物，膏，水袋等。
1) health: sanitary napkin pad, diaper, medical mattress, absorbent paper, sustained-release drug, cream, bag etc..
2)农业和园林：土壤保水，种子包衣，拌种育苗。
2) agricultural and Garden: soil water, seed, seed seedling.
3)工业：止水膨胀橡胶，吸水防污涂料，防结露涂料，防静电涂料，油田堵水及油水分离，光缆
3) industry: water stop expansion rubber, water absorbent antifouling paint, anti condensation coating, antistatic coating, water plugging and oil and water separation in oil field, optical cable
用阻胶带及缆膏，混凝土的养护等。
Use of tape and cable paste, the maintenance of concrete and so on.
4)食品工业用吸水剂，水果和蔬菜的保鲜剂。
4) the food industry uses the water absorbent, the fruit and the vegetable fresh-keeping agent.
工艺流程
Technological process
Process flow
Process flow
目前商业生产的制程以共聚物化学法为主
At present, the process of commercial production is dominated by copolymer chemical method
流程：丙烯酸和氢氧化钠混合，在碱性环境下进行利用自由基引发剂聚合来生成聚丙烯酸钠（SAP）。
Process: acrylic acid and sodium hydroxide are mixed to produce sodium polyacrylate (SAP) by polymerization of free radical initiator in alkaline environment.
