摘要
不耐盐和不耐洗涤剂一直是困扰海藻纤维制备的难题。针对这一问题文中采用四硼酸钠对海藻纤维进行改性,通过红外光谱、X射线衍射对改性海藻纤维进行了结构表征,并利用吸液量、纤维钙离子含量、纤维断裂强度、纤维和纺丝液微观形貌测试,研究了改性海藻纤维的耐盐、耐洗涤剂性能。结果表明,利用四硼酸钠对海藻纤维进行改性可以提高海藻纤维的交联程度和结晶度,从而降低生理盐水和洗涤剂中的钙钠离子交换对海藻纤维结构的破坏,有利于保持纤维形貌。经生理盐水和洗涤剂浸泡后,海藻纤维的吸液量仅为10.2%和10.1%,断裂强度损失仅为5.1%和9.0%,显著提升了海藻纤维的耐盐、耐洗涤剂性能。
Salt and detergent resistance has been a problem in preparation of alginate fiber.In order to solve this problem,the alginate fiber was modified with sodium tetraborate.The modified alginate fiber was characterized by FT-IR and XRD.The liquid absorption,calcium ion content,breaking strength,micromorphology of fiber and spinning solution were tested to study the salt and detergent resistance of modified alginate fibers.The results show that the modification of alginate fibers with sodium tetraborate can increase the degree of cross-linking and the crystallinity of seaweed fibers,thereby reducing the damage of calcium and sodium ion exchange in saline and detergent to the structure of seaweed fibers,which is beneficial to maintain the fiber morphology.After soaking in saline and detergent,the liquid absorption of the alginate fiber is only 10.2%and 10.1%,and the breaking strength loss is only 5.1%and 9.0%,which significantly improves the salt and detergent resistance of alginate fibers.
作者
田星
徐为
沙源
王兵兵
夏延致
Xing Tian;Wei Xu;Yuan Sha;Bingbing Wang;Yanzhi Xia(Institute of Marine Biobased Materials,State Key Laboratory of Bio-Fibers and Eco-Textiles,Qingdao University,Qingdao 266071,China)
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2020年第1期147-151,158,共6页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(51603108)
青岛博士后应用研究项目(131307)
关键词
海藻纤维
交联
耐盐耐洗涤剂
alginate fiber
cross-linking
salt and detergent resistance
