Rod-shaped ceramic resistant heating body useful for guide- and calendar rollers in polymer film technique, comprises carbon nanotubes embedded as electric conductive phase in a silicate- or oxide ceramic matrix

摘要

The rod-shaped ceramic resistant heating body comprises carbon nanotubes (1-8 mass%) with an average length of up to 1.9 mu m as electric conductive phase embedded in a silicate- or oxide ceramic matrix. The carbon nanotubes have a ratio of length and diameter of 100-200. An independent claim is included for a method for the production of rod-shaped ceramic resistant heating body.