Chemical vapour deposition (CVD) is one of the most frequently used production processes for CNTs in industry. A tube that consists of only one graphite-like layer is referred to as a single-wall carbon nanotube (SWCNT).
Multi-wall carbon nanotubes (MWCNTs) are cheaper to manufacture.
Development efforts aim to achieve nanocarbon dispersions in which the potentials of the material are implemented efficiently. This requires the optimisation of technologies such as functionalisation (for optimum compatibility to the respective matrix) and dispersion (for homogeneous distribution in the matrix). The focus is on plastics and coatings applications in which a high electrical or thermal conductivity and/or mechanical strength is required.
Electrically heated coatings based on CNTs can be used in films, as they are highly elastic and flexible. These can also be used as interior heating.
Electrically heated coatings represent a modern interior heating system for HGVs, e.g. in door coverings or heating mats. They are especially important in electric cars, which cannot be heated by hot exhaust gases.
Modern, energy-efficient, homogeneous heating systems are environmentally friendly and are of direct benefit to the consumer.