Preparation method of pattered metallic textile on the basis of pretreatment with dopamine

Abstract

The invention relates to a preparation method of a pattered metallic textile on the basis of pretreatment with dopamine. The preparation method includes the steps of: 1) performing oxidizing auto-polymerization to a dopamine solution to obtain polydopamine, and adding slurry to obtain dopamine-modified slurry; 2) printing the surface of a Dacron fabric through a printing technology to form a pattern, drying the fabric, repeatedly printing the fabric, drying the fabric to obtain a dopamine-modified pattered polyester substrate; 3) impregnating the pattered polyester substrate in an activating solution, and washing and drying the substrate to obtain activated pattered polyester substrate; 4) placing the activated pattered polyester substrate in a metal plating solution to perform chemical-plating in a deposition manner, and cleaning and drying the product to obtain the pattered metallic textile on the basis of pretreatment with dopamine. Through the chemical-plating method, the conductive fabric is produced. Compared with other surface treatment technologies, the preparation method is free of external power supply and has simple operation and simple processes. The plated layer is relatively uniform. The method also allows deposition on non-metallic fabrics, and the produced textile has high electric-conductivity and good electromagnetic shielding performance, is low in cost and is more economical and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of flexible electronics, in particular to a method for preparing patterned metal textiles based on dopamine pretreatment. Background technique [0002] Wearable flexible electronics has gradually developed into a key research project because of its advantages that traditional electronics cannot achieve, such as lightness, bendability, flexibility, etc., and it has also been used in many fields, such as smart sportswear , patient vital sign monitoring, portable sensors, fabric-based electronic entertainment devices, and military electronically functional uniforms, among others. Therefore, the effective combination of textiles and electronics can further expand the application field of textiles. [0003] Polyester is a synthetic fiber with the fastest development, the highest output and the widest range of applications. It has good performance and low price. It has been widely used in many aspects of national...

AI Technical Summary

Problems solved by technology

(1) Metal fibers are mixed into textiles by weaving, but the process is more complicated and the design pattern is limited, because the conductive pattern needs to follow the warp and weft directions in the fabric

(2) Use the printing method to print ink or paste containing metal nanoparticles on the surface of the fabric. This method has complete design freedom and can produce a variety of conductive metal patterns, but because this method requires high temperature in the later stage Sintering volatilizes excess stabilizers and organic solvents to achieve the best conductive effect of metal nanoparticles, which has a certain risk of thermal degradation and thermal deformation for textile substrates, and lowering the sintering temperature will cause the remaining of stabilizers. The electrical conductivity is reduced. In addition, high temperature sintering will easily cause damage to the surface of the fabric. The bonding degree between the metal layer and the surface of the fabric is not high enough, which is not friendly to the environment.

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