| abstract |
The present invention provides an electrochromic composite fiber with a coaxial structure and a preparation method thereof. The method includes the following steps: S1, configuring a spinning dope of electrochromic compound that can be used for wet spinning; S2, utilizing wet spinning The electrochromic compound and the elastic fiber are prepared into elastic fibers covered by the electrochromic compound with a coaxial structure; S3, stretching the elastic fibers to cause cracks in the electrochromic compound layer on the surface of the elastic fibers; S4, in The surface of the stretched elastic fiber is coated with a layer of polyvinyl alcohol-phosphoric acid gel electrolyte, and then the elastic fiber recovers to its original length after the tension is removed to obtain an electrochromic composite fiber with a coaxial structure. The fiber prepared by the method has good weavability, changes color with the difference of the voltage across the fiber, and has wide application potential and simple preparation method. |