Preparation and thermal properties of layered porous carbon nanotube/epoxy resin composite films

摘要

A floating-catalyst spray pyrolysis method was used to synthesize carbon nanotube (CNT) thin films. With the use of ammonium chloride as a pore-former and epoxy resin (EP) as an adhesive, CNT/EP composite films with a porous structure were prepared through the post-heat treatment. These films have excellent thermal insulation (0.029-0.048 W.m(-1).K-1) at the thickness direction as well as a good thermal conductivity (40-60 Wm(-1).K-1) in the film plane. This study provides a new film material for thermal control systems that demand a good thermal conductivity in the plane but outstanding thermal insulation at the thickness direction.