中文摘要：

目前生产的海藻纤维强力较差，限制了其应用范围．采用湿法纺丝方法，制备了高强度的海藻纤维，研究了自制海藻纤维的形态结构、结晶度、物理机械性能、吸湿性能、热性能以及燃烧性能，观察到该高强度海藻纤维粗细均匀且纵向表面有沟槽，横截面是不规则的锯齿状且无较厚的皮层存在，和普通粘胶纤维的截面比较相似．结晶指数为0．28，断裂强度3．63cN／dtex（比棉和粘胶纤维好），吸湿性能优异，并从理论上分析了海藻纤维自阻燃的机理．

英文摘要：

The present alginate fiber had poor strength, which limited its application filed. The properties of the fiber were studied such as the morphological structure, crystallinity, physical mechanical properties, moisture property, thermal property, flaming retardance. The alginate fibers are uniform in the diameters and have grooves on the surface, whose cross section is irregular sawtooth and has no thicker skin layer, which is similar with the general viscose fiber. The crystalline index of this fiber is 0.28, the breaking strength is 3.63 cN/dtex, which are better than cotton and viscose fiber, the moisture property is excellent. The mechanism of self flame-resisting were analyzed theoretically.