用累托石制备矿物/聚丙烯酸盐高吸水树脂

Preparation of mineral /acrylate superabsorbent resin by rectorite

以具有层状硅酸盐结构的粘土累托石(REC)为主体,经煅烧除去黄铁矿后与部分中和的丙烯酸通过水溶液聚合法制备累托石/聚丙烯酸(盐)高吸水树脂.研究了煅烧温度、煅烧时间对累托石硫含量及累托石/聚丙烯酸盐高吸水树脂吸水性能的影响.实验结果表明:当煅烧温度高于550℃、煅烧时间大于0.5h时,聚合反应能顺利进行;当煅烧条件为650℃、1.5h时,高吸水树脂的吸水性能最佳.

This article studies calcining temperatures and time effect on the content of iron pyrites in rectoriteor by calcining rectoriteor in Zhongxiang Hubei province to remove the iron pyrites in them.On this basis, the calcined rectoriteor and the acrylic acid(acrylate) have been polymerized. It has shown that the polymerization can be done smoothly under the condition of 550 ℃ and 0.5 hours, and that the bibulous effect of the produced super absorbent polymers is the best under the condition of 650 ℃ and 1.5 hours.