Method for preparing photoelectric functional compound fabric through fractional in-situ deposition

Abstract

The invention relates to a method for preparing a photoelectric functional compound fabric through fractional in-situ deposition. The method comprises the following steps of: (1) dropwise adding a zinc acetate / alcoholic solution and a sodium hydroxide / alcoholic solution under violent stirring, and mixing to obtain nanometer zinc oxide sol; (2) putting the fabric into the nanometer zinc oxide sol,carrying out soaking and rolling twice, and baking after airing; (3) soaking the fabric obtained in the step (2) into a mixed aqueous solution containing zinc nitrate and a homogeneous precipitation agent, and baking after washing; and (4) soaking the fabric obtained in the step (3) into a mixed aqueous solution containing aniline and protonic acid, airing and then soaking the fabric into a mixedaqueous solution containing ammonium persulfate and protonic acid, extruding and finally continuing to react to obtain the finished product. The preparation method disclosed by the invention is simple and feasible, safe and environment-friendly and has low requirements on equipment performance. The photoelectric multifunctional compound fabric prepared by utilizing the method disclosed by the invention has the advantages of favorable electrical conductivity, flame retardance, antibiotic property, photocatalysis property, antistatic property, electromagnetic wave shielding property and other properties, and wide application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of photoelectric multifunctional composite fabrics, in particular to a method for preparing photoelectric multifunctional composite fabrics by step-by-step in-situ deposition. Background technique [0002] Nano-zinc oxide (ZnO), as a luminescent material, also has many special properties, and has great application prospects in gas sensors, phosphors, ultraviolet shielding materials, image recording materials, piezoelectric materials, varistors, and high-efficiency catalysts. . In recent years, nano-ZnO has gradually been widely used in the field of textiles, endowing fabrics with anti-ultraviolet, anti-wrinkle, deodorizing and other effects. However, as a self-activated semiconductor material (the forbidden band width is 3.27eV at room temperature, 60eV), when it is stimulated to emit by ultraviolet light, the emission intensity will be rapidly quenched with the increase of temperature, coupled with th...

AI Technical Summary

Problems solved by technology

PANI / ZnO is used as a functional composite membrane in the preparation of composite fabrics. There are no relevant reports. Whether the composite membrane can be successfully prepared needs to consider the following points: (1) Nano-ZnO is usually added to the fiber stock solution for melt spinning , can ensure good fastness, but cannot ensure that the ZnO particles embedded in the fiber are fully in contact with oxygen and moisture, so that the photocatalytic effect is weakened. At the same time, the prepared PANI / ZnO composite is directly added to the textile The problem of refractory and insoluble polyaniline will also be encountered in the silk liquid; (2) the post-finishing method using a dispersing finishing agent or a resin binder, although the method is simple, it is difficult to ensure the consistency of the nanocomposite particles in the finishing agent. Dispersion and uniformity, while finishing will reduce the physical properties of the fabric such as feel