Carbon fiber dyeing method

Abstract

The invention discloses a carbon fiber dyeing method. The method comprises the following steps of firstly, dyeing nanocellulose dry powder, performing drying, mixing the dyed nanocellulose dry powder with polyvinyl alcohol according to a mass ratio of 2: 8, adding deionized water, performing uniform stirring to obtain a spinning solution, and performing electrostatic spinning to prepare a dyed nanofiber membrane; separating a carbon fiber bundle into carbon fiber monofilaments, carrying out plasma modification, performing polishing with abrasive paper, spraying glue on the surfaces of the treated carbon fiber monofilaments, coating the treated carbon fiber monofilaments with the dyed nanofiber membrane, performing water washing and drying, and finally performing coating with a transparent plastic membrane to obtain a dyed carbon fiber product. Compared with other carbon fiber dyeing methods, the method for indirectly dyeing carbon fibers is simple and feasible and has the advantage that the performance of the carbon fibers is not damaged, and the dyed carbon fiber product has good color fastness, washing fastness and light fastness.

Description

technical field [0001] The invention belongs to the technical field of textile industry, and in particular relates to a carbon fiber dyeing method. Background technique [0002] Carbon fiber is a high-strength and high-modulus fiber with a carbon content of more than 90%. It is widely used in aerospace, military, automobile, sports facilities and other industries. It is mainly to prepare carbon fiber into carbon fiber composite materials, and use the high strength and high temperature resistance of carbon fiber to process and manufacture products. Due to its special mechanical properties, carbon fiber is widely used in high-end manufacturing industries. However, the graphite-like deconstruction of carbon fiber makes its surface chemically inert, with low surface energy, lack of chemically active functional groups, and poor interfacial bonding performance, resulting in chemical bonds between the remaining dye molecules. Low cooperation and difficult to dye, which seriously l...

AI Technical Summary

Problems solved by technology

The Chinese invention patent with the publication number CN104358140A discloses a method for dyeing aramid fiber and carbon materials by using a carrier. The aramid fiber and carbon materials are dyed with basic dyes and over-dyed carbon under high temperature and high pressure. The process is long. , there are many process parameters that need to be controlled; another method is to completely wrap carbon fibers with other chemical materials, similar to colored cables, metals are compared to carbon fibers, outsourcing red, green or yellow plastics are compared to outsourcing materials, and then outsourcing materials Dyeing is carried out again, and this method process is complicated, and pollution is big, and energy consumption is high