Method of preparing high-performance glass-fiber reinforced polyamide conductive composite

Abstract

The invention relates to a method of preparing a high-performance glass-fiber reinforced polyamide conductive composite. The method comprises the following steps that by the role of electrostatic force between opposite charges, a carbon nano tube and an ethylene / maleic anhydride copolymer are coated on the surface of glass fiber to form a multi-fiber mixed reinforcement structure; and the carbon nano tube / nylon masterbatch and nylon resin are uniformly mixed and then are compounded with the glass fiber reinforcement through an extrusion molding process, so as to obtain a high-performance glass-fiber reinforced nylon conductive composite. The reaction steps of the method are simple, the obtained composite has a good mechanical property and a good conductivity property and can be applied to the fields of automobile industry, electron and electricity, machinery and the like, and the range of application of the glass-fiber reinforced nylon composite is widened.

Description

technical field [0001] The invention relates to a nylon composite material, in particular to a preparation method of a high-performance glass fiber reinforced polyamide conductive composite material. Background technique [0002] As the engineering plastic with the largest output and widest application range in the world, nylon has the advantages of high mechanical strength; excellent self-lubrication and wear resistance; wear resistance and chemical resistance; excellent processing performance and easy processing and molding. . Widely used in the automotive industry, electrical and electronic, machinery and other fields. [0003] As the automotive, electronic appliances, communications, machinery and other industries have increasingly strong requirements for high-performance products, it is necessary to modify nylon through certain methods to make it develop from ordinary engineering plastics to high-performance engineering plastics and functional plastics. The modificati...

AI Technical Summary

Problems solved by technology

However, the real potential of carbon nanotubes has not been fully reflected in the macro-scale materials, and the improvement of the strength modulus of the material is limited, which is far lower than that of traditional reinforcement materials. This is mainly due to the fact that carbon nanotubes are difficult to disperse. And the problem of poor interface bonding, so the application in the high-end field of structural parts and alternative metal materials is limited

Overall, the effect of carbon nanotube-modified polymers alone is not ideal, making the application of carbon nanotubes as a reinforcing and conductive filler limited.

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