A kind of preparation method of clad bucky paper composite material with composite metal layer

Abstract

The invention provides a preparation method for a composite metal layer plated buckypaper composite material. The preparation method comprises the following steps that buckypaper sequentially undergoes acidification, sensitization and activation treatment, and then is added into deionized water for ultrasonic treatment, then a reducing agent is added, uniform mixing is performed to obtain a suspension liquid, then a nickel plating solution is added into the suspension liquid, and the nickel-plated buckypaper is obtained through reaction; mixed powder of tungsten oxide and molybdenum oxide is sprayed on the surface of the nickel-plated buckypaper, water-passing hydrogen is introduced after heating, and the modified nickel-plated buckypaper is obtained through reaction; the modified nickel-plated buckypaper is added into a copper plating solution, then the reducing agent is added, and a precursor of the composite metal layer plated buckypaper composite material is obtained through reaction; and the precursor is reduced under a reducing atmosphere, then sintering is performed, and the composite metal layer plated buckypaper composite material is obtained. The method is beneficial to improving the mechanical property, the electrical property and the service performance of the composite material, has the characteristics of being short in process, simple in equipment and high in safety operability, and enables continuous production to be realized easily.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a method for preparing a buckypaper composite material coated with a composite metal layer. Background technique [0002] Due to its excellent performance, copper / carbon composite materials have become the key materials necessary for many high-tech fields, and are widely used in aerospace, electronic information, high-speed rail transportation and other fields. At present, developed countries in Europe and the United States are generally at the leading level in the research and application of copper / carbon composite materials. The copper / carbon (graphite, carbon fiber) composite materials developed in my country are used in electronic packaging, dynamic sealing, pantograph slides, high-end brushes, etc. It has been applied and promoted, but there is a certain gap with developed countries in Europe and the United States in terms of copper / carbon composite ma...

AI Technical Summary

Problems solved by technology

Compared with electroplating, electroless plating has obvious advantages, such as: it can be used for various materials and shapes of substrate materials, the equipment is simple, and the cost is low, so it has been widely used; but the use of electroless plating on the surface of carbon materials Modification, the density of the coating is not high, resulting in poor mechanical properties and service performance of the composite material

Salt bath plating and magnetron sputtering not only consume a lot of energy and increase costs, but also cannot uniformly coat the surface of fine powder with a metal layer

Although the sol-gel method can obtain a uniform coating, due to the escape of a large amount of gas in the coating during the gel drying and impurity removal process, it is easy to generate cracks on the coating surface and destroy the integrity of the coating.