正交法制备淀粉接枝丙烯酰胺高吸水树脂  

Preparation of starch grafted acrylamide superabsorbent using orthogonal test

作　　者：马建泰[1] 康红卫[1] 陈港泉[2] 苏伯民[2] 樊再轩[2] 

机构地区：[1]兰州大学化学化工学院,兰州730000 [2]敦煌研究院文物保护研究所,甘肃敦煌736200

出　　处：《兰州大学学报（自然科学版）》2009年第3期101-103,共3页Journal of Lanzhou University(Natural Sciences)

基　　金："十一五"国家科技支撑计划项目(2006BAK30B03)

摘　　要：以土豆淀粉、丙烯酰胺为原料,采用水溶液自由基聚合的方法,通过正交实验制备了耐盐性快速吸水树脂。为得到最佳工艺条件,考察了自由基引发温度、引发剂浓度、单体的浓度等8个因素,正交实验最佳结果所得树脂3 min吸收1%氯化钠水溶液58.5倍,且吸收后的盐溶液呈中性。A rapid and effective starch grafted acrylamide superabsorbent was synthesized by grafting a crylamide onto potato starch, using N, N-methylenebisacrylamide as a crosslinking agent and pota-ssium persulfate and sodium sulfite as a redox initial system. In order to get the best condition, eight factors were investigated, such as temperature, initiator concentration, the monomer concentratio, etc. The optimum result of the orthogonal experiments is that the superabsorbent can absorb 58.5 times 1% sodium chloride solution in three minutes and the remaining salt solution showes pH neutral after absorption.

关 键 词：淀粉 丙烯酰胺 正交法 中性快速吸水树脂 

分 类 号：O636.1[理学—高分子化学]