Preparation method of copper-nickel conducting fabric

Abstract

The invention discloses a preparation method of a copper-nickel conducting fabric, which sequentially comprises the following steps: carrying out oil removal treatment on the base fabric surface, coarsening the base fabric surface, carrying out palladium-free activating treatment on the base fabric surface, carrying out chemical plating on the nickel-copper alloy plating solution, and the like. The ultraviolet radiation dry-state oxidation is used instead of the traditional caustic soda wet-process coarsening technique to construct the fiber hydrophilic coarse surface, thereby being beneficial to adsorption of the subsequent activator on the fibers and increasing the binding force between the metal coating and fibers. The method belongs to dry-state processing, effectively avoids chemical pollution, and reduces the two steps of dehydration and drying in the traditional coarsening.

Description

technical field [0001] The invention relates to a preparation method of copper-nickel conductive fabric. Background technique [0002] With the rapid development and increasing popularity of telecommunications, computers, microwave ovens, etc., the energy density of electromagnetic radiation in the environment is increasing year by year. Electromagnetic environmental pollution has become the fourth largest pollution after air, water quality and noise, and it has attracted more and more attention. Electroless metal-plated fabric is a good electromagnetic shielding material, which has both the conductivity and electromagnetic shielding properties of metal and the fabric [0003] Its soft and breathable properties can be widely used in the fields of national defense, aviation, aerospace, electronics, electric power, communication and medical treatment. It is an industrial textile with excellent economic and social benefits. Copper-nickel alloy not only has good electrical con...

AI Technical Summary

Problems solved by technology

[0004] In the current research on the preparation of metal conductive fabrics, in order to improve the bonding force between the metal coating and the fiber, it is necessary to increase the roughness of the fiber surface, and the method of alkali etching and oxidant etching is used, and there is a problem of chemical pollution.

In the preparation, metal ions such as Sn2+ and Pd2+ are also used for palladium activation and sensitization, which will also cause serious environmental pollution and are expensive

In order to reduce the use of palladium and other precious metals in the activation process of the electroless plating process, scholars at home and abroad have used the strong reducing properties of sodium borohydride (NaBH4) / potassium borocyanide (KBH4) to directly reduce nickel sulfate with NaBH4 / KBH4 adsorbed by fabrics. , and the reduced nickel is adsorbed on the fabric, making it the activated catalytic center of electroless plating, and then triggers the electroless plating, but the current improved sodium borohydride (NaBH4) / potassium borocyanide (KBH4) has no palladium activation, Since sodium borohydride (potassium) is an explosive chemical, there are potential safety hazards in the production process