正交法优化淀粉接枝共聚高吸水树脂的工艺条件  

Process optimization for graft co-polymerization of acrylic acid onto starch by orthogonal test

作　　者：伍亚华[1] 石亚中[1] 

机构地区：[1]蚌埠学院食品与生物工程系,安徽蚌埠233030

出　　处：《应用化工》2010年第5期682-683,共2页Applied Chemical Industry

基　　金：安徽省青年教师资助项目(2007jq1128);蚌埠学院优秀人才资助项目(院字[2008]2号)

摘　　要：以过硫酸钾为引发剂,甘油溶液为交联剂,引发甘薯淀粉与丙烯酸接枝共聚反应。对影响反应的主要因素如丙烯酸中和度、引发剂的量、交联剂的量、体系用水量、淀粉糊化时间进行了研究。结果表明,淀粉接枝丙烯酸共聚高吸水树脂的最佳工艺条件为:丙烯酸中和度为70%,引发剂的量为60 mg,交联剂量为0.25 mL,体系用水量为40 mL,淀粉糊化时间为20 min。按此条件制得的树脂的吸水率为768Graft polymerization of acrylic acid onto sweet starch using potassium per sulfate-sodium bisulfate as initiators,glycerol as crosslinking agent,effect of the degree of neutralization of monomer,the concentration of initiators and crosslinking agent,the volume of water,the time of starch gelatinization on reaction were studied.The result showed that the grafting percentage is higher when the neutral degrade is 70%,concentrations of initiator and crosslinking agent are at 60 mg and 0.25 mL,the volume of water is 40 mL,the time of starch gelatinization is 20 min.Under the condition,the water absorption rate of resin is 768 g/g.

关 键 词：甘薯淀粉 高吸水树脂 接枝共聚 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业] S632[农业科学—蔬菜学]