抗菌型四元共聚吸水性树脂的制备与性能

Preparation and Properties of Quaternary-Copolymerization Water-Absorbing Resin with Antibacterial Type

以壳聚糖为接枝主链,丙烯酸、膨润土和丙烯酰胺为接枝单体,共聚合成抗菌型四元共聚高吸水性树脂,通过正交试验设计优化出最佳吸水倍率的工艺条件为(原料用量是指占丙烯酸用量的质量百分比):0.90%引发剂,5%壳聚糖,60%中和度,反应温度为80℃,10%的膨润土用量,50%丙烯酰胺用量和0.05%的交联剂用量,该树脂吸水倍率为573.50%。重复吸水性能和抗菌性能测试表明,该树脂有较好的重复利用能力及一定的抗菌性能。

Through grafted chitosan with graft copolymer of acrylic acid,amargosite and acrylamide as grafting monomer, the antibacterial-type quaternary-copolymer superabsor- bent resin was synthesized by graft polymerization. The optimized reaction condition for best water absorption rate is 0.90% initiator, 5% chitosan, 60% neutralization degree, 80 ℃ reaction temperature, 10% amargosite, 50% acrylamide and 0. 05% cross-linking a- gent. Among them, the amount of raw material refers to the percentage of the amount of a- crylic acid. The water-absorption rate of high water absorbent resin was 573.50%. Repeated water absorption test shows that the quaternary-copolymer resin has good repeat water absorbing capacity. At the same time, antibacterial test also shows that the quater- nary-copolymer resin has good antibacterial property.