Roving and twisted thread

Carbon nanotubes tend to stick together firmly in bundles, forming roving, rope or thread, which is a durable, flexible and wear-resistant material capable of withstanding multiple cyclic loads. Individual bundles of nanotubes woven into strands are slightly thicker, but much longer and stronger than the original material. The strength of such threads depends significantly on the diameter and angle of twisting; the maximum is achieved with a thread thickness of about 10 microns. Due to their high conductivity and low weight, these strong and flexible threads can act as an alternative to even heavy metal wires, become the basis for the manufacture of heavy-duty materials and their use in the production of prepregs, fabrics, and cables, including conductive and Production of high-pressure composite cylinders. The INFRA carbon nanotubes for roving with extremely high electric conductivity of 2×10⁵ Sm/m.

Carbon nanotubes allow creating field emission devices, which allow much higher current density than ordinary carbon fibers do.