摘要
以魔芋葡甘聚糖(KGM)为原料接枝丙烯酰胺、丙烯酸制备耐盐性吸水树脂,研究了接枝共聚反应单体及KGM质量配比、中和度、交联剂浓度、引发剂浓度、乙二胺四乙酸(EDTA)质量分数对吸水树脂吸液倍率的影响,通过Box-Behnken实验设计对制备条件进行优化。结果表明,丙烯酰胺与丙烯酸质量比为0.192,交联剂浓度为0.067g/mol,引发剂浓度为0.439g/mol,中和度为90%,乙二胺四乙酸(EDTA)质量分数为12.2%时,该耐盐性树脂吸生理盐水倍率达125g/g,吸纯水倍率达700g/g。
The salt-resistant konjac glucomannan absorbent resin was prepared by graft polymerization. The effects of acrylamide to acrylic acid,neutralization of acrylic acid,the amount of cross-linker and initiator and the mass fraction of edetic acid （EDTA） on water absorbency were studied. The conditions of experiment were optimized by Box-Behnken experiment design. The results show that the salt-resistant konjac glucomannan （KGM） absorbent resin is capable of absorbing physiological saline water up to 125 g/g and purified water up to 700 g/g when acrylamide fraction is 0.192,cross-linker concentration is 0.067 g/mol,initiator concentration is 0.439 g/mol,edetic acid fraction is 0.122,neutralization degree is 90%.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2010年第4期131-134,共4页
Polymer Materials Science & Engineering
基金
湖北省科技厅(2006AA201C42)
湖北省教育厅科技创新项目(J200614002)
国家烟草专卖局资助项目"卷烟保润机理及应用技术研究"(110200701003)
关键词
魔芋葡甘聚糖
耐盐性
吸水树脂
响应面法
konjac glucomannan
salt-resistance
absorbent resin
response surface methodology
