Preparation and characterization of graphene antibacterial phase change energy storage viscose fibers

In this work, viscose fiber with antibacterial and phase change energy storage was made by microcapsule technology and wet spinning. Graphene oxide was used to enhance the thermal conductivity and antimicrobial properties. The heat preservation performance of graphene antibacterial phase change energy storage viscose fiber was determined by flat type fabric temperature protector and differential scanning calorimetry. The result of heat preservation test shows that the fiber has a good heat preservation property The antibacterial property, far-infrared property, mechanical properties, and the structures were also characterized. The enthalpy of exothermic & endothermic phase transition reached about 10 mJ/mg. According to the result of antibacterial test, the fiber had good antibacterial properties. The distribution of phase change microcapsules and graphene in fibers was analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The strength and elongation of antibacterial phase change viscose fiber were found suitable for underwear garments fabrics and filling storage sheet. Combined with the electron microscope photograph and strength test results, the addition of graphene and phase change microcapsules has little effect on the mechanical properties of fibers, and can be used for industrial production.