文章摘要
耐盐耐洗涤剂海藻纤维的制备及性能
Preparation and Properties of Salt-Tolerant and Detergent-Resistant Alginate Fiber
  
DOI:10.16865/j.cnki.1000-7555.2019.0353
中文关键词: 海藻纤维  交联  耐盐耐洗涤剂
英文关键词: alginate fiber  cross-linking  salt and detergent resistance
基金项目: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)
作者单位
田 星,徐 为,沙 源,王兵兵,夏延致 青岛大学海洋纤维新材料研究院 生物多糖纤维成形与生态纺织国家重点实验室山东 青岛 266071 
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中文摘要:
      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。
英文摘要:
      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.
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