海藻酸纤维的选择性氧化改性工艺  

Selective oxidized modification of alginate fiber

作　　者：苟莎[1] 朱平[1,2] 董朝红[1] 刘杰[1] 郭栋[1] 

机构地区：[1]青岛大学"纤维新材料及现代纺织"国家重点实验室培育基地,山东青岛266071 [2]武汉纺织大学化学与化工学院,湖北武汉430073

出　　处：《印染》2014年第2期9-12,共4页China Dyeing and Finishing

摘　　要：采用高碘酸钠对海藻酸纤维进行选择性氧化,研究高碘酸钠用量、氧化温度和氧化时间等工艺条件对纤维强力、失重率和醛基含量的影响,并用扫描电镜观察氧化纤维表观形态的变化。结果表明,选择性氧化的优化工艺条件为:高碘酸钠1 g/L,40℃处理1h。该条件下,纤维的醛基含量高,强力损伤小,失重率低。Selective oxidization of alginate fiber with sodium periodate is carried out. The influences of concentration of sodium periodate, oxidization temperature and time on strength loss, mass loss and aldehyde content are studied. The changes in sur face morphology of the oxidized fibers are observed by scanning electron microscope. The results show that the optimum process conditions are oxidizing with I g/L sodium periodate at 40 ℃ for 1h. Compared with the original fiber, the oxidized fi ber features more aldehyde groups, lower strength loss and mass loss.

关 键 词：海藻酸纤维 选择性氧化 强力 醛基 

分 类 号：TS195.54[轻工技术与工程—纺织化学与染整工程]