The structure analysis indicates that there is an ion replacement between calcium ion and sodium ion in the absorbency process, and this results the structure change of the fiber.

• 结果表明，海藻酸盐纤维在吸盐水过程中发生了离子置换，即盐水中的钠离子与纤维中的钙离子之间的置换过程导致海藻酸盐纤维的结构发生变化。