Multifunctional high-performance carbon-based nanoparticle/sodium alginate composite fibers and preparation method thereof

Abstract

The invention discloses a preparation method of carbon-based nanoparticle / sodium alginate composite fibers. The method comprises the steps of firstly, preparing a sodium alginate water solution with a certain concentration; then, feeding graphene oxide into the solution, fully mixing, and carrying out ultrasonic dispersion to obtain a graphene oxide / sodium alginate water solution; feeding a certain quantity of carbon nano tubes into the solution, fully mixing, and carrying out the ultrasonic dispersion to obtain a carbon nano tube / graphene oxide / sodium alginate spinning solution with the good dispersion; filtering the spinning solution, defoaming, and carrying out solution spinning at the room temperature to prepare the carbon-based nanoparticle / sodium alginate composite fibers. According to the carbon-based nanoparticle / sodium alginate composite fibers prepared by adopting the method, the uniform dispersion and the formation of a network structure of carbon-based nanoparticles in the fibers can be realized, the effective orientation of the carbon-based nanoparticles in the fibers can be realized, and the tensile strength, the electrical conductivity and the degradability resistance of the fibers are improved; furthermore, the adsorbability of the fibers is effectively improved, so that the carbon-based nanoparticle / sodium alginate composite fibers can be used for absorbing heavy metal ions and dye in water solutions.

Description

technical field [0001] The invention belongs to the field of preparation of marine biomass composite fibers, and specifically prepares multifunctional high-performance carbon-based nanoparticles / sodium alginate composite fibers through the synergistic effect among sodium alginate, carbon nanotubes, and reduced graphene oxide. fiber. 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. However, due to the unique molecular structure and wide molecular weight distribution of natural polymers, the mechanical strength of seaweed fiber...

AI Technical Summary

Problems solved by technology

However, studies have shown that although the addition of carbon nanotubes can significantly increase the tensile strength of the fiber, the elongation at break of the fiber has decreased, resulting in poor toughness of the fiber.

However, there is no report on modifying seaweed fiber by using the synergistic effect among sodium alginate, carbon nanotubes, and redox graphene, and at the same time endowing seaweed fiber with high performance and multifunctionality.