微波催化玉米淀粉基高吸水树脂制备工艺的研究  

Preparation of superabsorbent based on maize starch by microwave irradiation

作　　者：陆爱霞[1] 罗扬[1] 严勇[1] 

机构地区：[1]西南科技大学生命科学与工程学院,四川绵阳621010

出　　处：《食品与机械》2010年第5期33-35,共3页Food and Machinery

基　　金：西南科技大学科研基金(编号:09zx7109)

摘　　要：以玉米淀粉为基质、丙烯酸为单体、硝酸铈铵为引发剂、N,N′-亚甲基双丙烯酰胺为交联剂,通过微波辐射的方法合成高吸水性树脂。考察丙烯酸中和度、引发剂用量、交联剂用量、淀粉与丙烯酸单体的配比等因素对树脂吸水能力的影响。通过正交试验得到最佳工艺条件为:玉米淀粉3.0g、丙烯酸7.5mL、去离子水18.0mL、丙烯酸pH6.5、硝酸铈铵0.15g、N,N′-亚甲基双丙烯酰胺3.0mL及120W微波反应5min。所制备的淀粉基高吸水性树脂对去离子水的吸倍率可达659.3g/g。Superabsorbent based on maize starch was prepared with acrylic as monomers,ammonium ceric nitrate as initiator,N,N＇methylene bisacrylamide as crosslinker,using microwave irradiation.Effects of many factors（such as the neutralization of acrylic acid,content of initiator and cross linker,ratios of acrylic acid to maize starch）on the water absorption behavior of the resin were investigated.The optima1synthetic conditions were found through orthogonal experiment as follows：3.0g starch,7.5mL acrvlic acid,18.0mL distilled water,pH 6.5acrylic acid,0.15g ceric ammonium nitrate,2.0mL N,N＇-methylene bisacrylamide,reacting for 5min with low fire-power of microwave.The water absorbency of the resin for distilled water was 659.32g/g.

关 键 词：玉米淀粉 高吸性树脂 微波 接枝共聚 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]