魔芋葡甘聚糖/丙烯酰胺薄膜的研究

STUDY ON KONJAC GLUCOMANNAN-ACRYLAMIDE FILM

以高锰酸钾引发魔芋葡甘聚糖与丙烯酰胺的接枝共聚并流延成膜。按L16(45)正交实验主要研究交联剂、增塑剂等各因素对KGM膜拉伸强度、断裂伸长率和吸水率的影响。结果表明,当甲醛用量14 mL、甘油用量10 mL、魔芋精粉与丙烯酰胺质量比1∶2、反应时间3 h、高锰酸钾浓度1.0×10-3m o l/L时膜的综合性能较好。

The graft copolymerization of acrylamide onto konjac glucomannan （KGM） was studied using KMnO4 as an initiator. The relationship among experimental variables, tensile strength, extension rate and water-absorption rate was investigated according to orthogonal tests. The result shows that the optimal condition for film with comprehensive function as follows： formaldehyde volume 14 mL, glycerin volume 10 mL, quality proportion 1 ： 2, reaction time 3 h, potassium permanganate concentration 1.0×10^-3 mol/L.