Preparation method of conductive reinforced alginate fiber

Abstract

The invention provides a preparation method of conductive reinforced alginate fiber. The preparation method comprises the following steps that 1, sodium alginate is dissolved in water to prepare a sodium alginate solution; 2, a conductive nano polymer material is added into the sodium alginate solution obtained in step 1 and evenly stirred for ultrasonic dispersion, and a uniformly dispersed mixedsolution is obtained; 3, the mixed solution obtained in step 2 is filtered and subjected to vacuum defoaming, and a spinning solution is obtained; 4, the spinning solution obtained in step 3 is extruded and then solidified into yarn through a coagulating bath, and then washing, rolling and drying are carried out, wherein the conductive nano polymer material is selected from one or more of polyaniline nano particles, polyacetylene nano particles, polypyrrole nano particles and polythiophene nano particles. According to the method, the original advantages of the alginate fiber are guaranteed, the conductivity is also improved, and the method can be applied to the field of textiles.

Description

technical field [0001] The invention belongs to the technical field of preparing marine biological composite fibers, and in particular relates to a method for preparing seaweed fibers with enhanced electrical conductivity. Background technique [0002] Seaweed fiber uses sodium alginate extracted from brown algae (such as kelp and macroalgae) as raw material to produce new fiber materials with special properties and functions that can be used in textile health care, military industry and medical treatment by using proprietary spinning technology and equipment. Seaweed fiber has the following excellent properties: super flame retardant properties; excellent hemostatic and antibacterial effects; green production process. Due to the unique molecular structure and wide molecular weight distribution of natural polymers, the mechanical strength of seaweed fibers is low, and the conductivity of fibers is low (the mass specific resistance of pure seaweed fibers is 4.48×10 8 Ω·g / cm ...

AI Technical Summary

Problems solved by technology

Due to the unique molecular structure and wide molecular weight distribution of natural polymers, the mechanical strength of seaweed fibers is low, and the conductivity of fibers is low (the mass specific resistance of pure seaweed fibers is 4.48×10 8 Ω·g / cm 2 ), the field of application is limited

[0003] The conjugated structure in the polymer main chain of some conductive fibers is a stiff molecular chain, which is difficult to dissolve and melt, which causes difficulties in spinning; others use ordinary synthetic fibers as the matrix, and some conductive substances are passed through physical, mechanical, It is made by coating the surface of the fiber by means of chemical and other means. Since the conductive component of this type of conductive fiber only covers the surface of the matrix fiber, the conductive substance is easy to peel off after friction and washing, and the abrasion resistance and washing resistance are poor, which affects the fiber. Performance; there are also some composite or blended conductive materials with many chemical substances, which have a certain impact on environmental pollution

The above-mentioned conductive fibers are difficult to be applied to textiles by direct spinning of conductive polymers.