微波辅助耐盐性高吸水性树脂的制备工艺及性能研究  

Technology for synthesis of anti-salt superabsorbent resin under microwave radiation and its performance of absorbability

作　　者：陈传品[1] 王鹏[1] 郑彤[1] 邓斐今[1] 

机构地区：[1]哈尔滨工业大学环境科学与工程系,哈尔滨150001

出　　处：《现代化工》2002年第S1期127-129,132,共4页Modern Chemical Industry

基　　金：哈尔滨工业大学跨学科交叉性研究基金资助项目(HITMD2000-28)

摘　　要：采用微波辐射技术,以过硫酸钾为引发剂进行淀粉接枝共聚丙烯酸,建立了耐盐性高吸水性树脂的合成工艺。通过优化实验确定最佳工艺条件为:单体丙烯酸中和度为40％,每克淀粉的引发剂(质量浓度为20 g/L的K2S2O8溶液)用量为0.5ml,单体与淀粉质量比4:1,在功率为360 w的微波辐射下反应14 min。在上述最佳工艺条件下,制备出吸水率和吸盐水率分别为995 g/g和182 g/g的耐盐性高吸水树脂。并对各工艺参数(如树脂粒径、单体中和度、单体与淀粉质量比、引发剂用量等)对高吸水性树脂吸(盐)水性能的影响及保水性能等进行了研究探讨。A new synthesizing process of anti-salt superabsorbent resin was put forward based on the graft copolymerization of acrylic acid(AA) onto starch under microwave radiation by using K2S2O8 as initiator. Salt-resisting superabsorbent resin can be synthesized in 14 min through the optimization of experiment of AA neutralization degree being 40% , m(AA): m(starch) = 4:1 and 0.5 ml 20 g/L K2S2O8 per gram of starch. Under optimal operating conditions, the absorbability for distilled water and 0.9% NaC1 solution wa...

关 键 词：淀粉 丙烯酸 微波辐射 接枝共聚 高吸水性树脂 

分 类 号：TQ317[化学工程—高聚物工业]