魔芋粉接枝丙烯酸超强吸水剂合成工艺优化

The Optimization on Synthetic Process of Konjac Flour Grafted Acrylic-acid Superabsorbent Polymers

采用均匀设计法,对魔芋粉接枝丙烯酸超强吸水剂合成工艺进行优化。最佳合成工艺条件是:单体量(单体/魔芋粉)10.9、引发剂量(引发剂/魔芋粉)5.08%、反应温度66.2℃、单体中和度78.7%、交联剂量(交联剂/魔芋粉)1.43%、反应时间2.51 h。产物吸水率为685.3 g/g,吸盐水率306.5 g/g(自来水)。

In the paper, the uniform design method was used to the optimization synthetic process of konjac flour grafted acrylic acid superabsorbent. Optimal synthesis conditions were： the amount of monomer （monomer / Konjac powder） 10.9, the amount of initiator （Initiator / Konjac powder） 5.08 %, reaction temperature 66.2 ℃, and the neutralization degree of 78.7 % monomers, the amount of crosslinking agent （cross-linked agent / Konjac powder） 1.43 %, reaction time 2.51 h. The absorption ability ofcopolymer prepared under the optimum condition is 685.3 g.g^-1 （deionized water） and 306.5 g·g^-1 （water）.