MULTI-LAYERED COMPOSITE CONTAINING CARBON-BASED WET-LAID NONWOVEN FABRIC MANUFACTURING METHOD THEREOF AND HEAT RELEASING AND EMI SHIELDING MATERIALS USINGG THE SAME

摘要

The present invention relates to a multilayer composite material including a carbon-based wet-laid nonwoven fabric, a method of manufacturing the same, and a shielded heat-radiating material using the same. The present invention provides a wet process for multilayer composite material which is stably filled in a carbon-based wet-laid nonwoven web and integrated at high density on a surface to form a layered conductive nano-structure, thereby providing a carbon-based wet- It is possible to apply various composition products according to the concentration of the conductive nanostructure, and it is advantageous to enlarge the process by continuous process. Particularly, since the multilayer composite material of the present invention is provided in a superstructure type and a foil shape and has excellent heat dissipation property and excellent electromagnetic wave shielding performance by optimizing thermal conductivity or surface resistance, it can be used in portable electronic equipment, military electronic equipment, industrial electronic equipment, .