聚丙烯腈的水解及高吸水性树脂的研制

Hydrolysis of Polyacrylonitrile and Preparation of Superabsorbent Resin

将聚丙烯腈粉末用碱水解 ,所得到的产物分别用外加交联剂法和热交联法交联 ,制备高吸水性树脂。热交联法比外加交联法处理简单 ,所得到的产品吸水率为后者制备树脂的吸水率的 2～ 3倍。

The polyacrylonitrile powder was hydrolyzed in a caustic solution. The obtained product was treated by either crosslinking or adding an external crosslinking agent to produce the absorbent resin. The former features a water absorbing ratio about 2~3 times higher than the later one.