109results about How to "Stable resistance value" patented technology

Disclosed is an electroconductive fiber comprising synthetic fibers and an electroconductive layer covering the surface of the synthetic fibers and containing carbon nanotubes. Not less than 60% (particularly not less than 90%) of the total surface of the synthetic fibers is covered with the electroconductive layer, and the electric resistance of the electroconductive fiber is in the range of 1*10<-2> to 1*10<10> Omega / cm, and the standard deviation of the logarithm of the electric resistance is less than 1.0. The thickness of the electroconductive layer is in the range of 0.1 to 5 micrometers, and the amount of the carbon nanotubes may be 0.1 to 50 parts by mass based on 100 parts by mass of the synthetic fiber. The electroconductive fiber may contain a binder. The electroconductive fiber may be produced by immersing the synthetic fibers in a dispersion while applying vibration to the synthetic fibers to deposit an electroconductive layer on the surface of the synthetic fibers. In the electroconductive fiber, the carbon nanotubes are deposited evenly and strongly onto substantially the whole area of the surface of the fibers, and, thus, the electroconductive fiber is electroconductive and flexible.

The invention provides a graphene nano steam generation device and a cosmetic instrument. The steam generation device comprises a coarse steam channel and a nano steam channel, wherein the coarse steam channel is respectively connected with a coarse steam manufacturing device and the nano steam channel, a steam screening and filtering device is arranged in the coarse steam channel, and a first electrode and a second electrode are arranged in the tail end of the coarse steam channel. The steam generation device further comprises a high voltage power supply device, wherein the high voltage powersupply device is connected with the first electrode and the second electrode, the high voltage power supply device can load high voltage power on the first electrode and the second electrode and canform high voltage arc discharge between the two electrodes, flowing-through coarse steam molecular groups are broken by high voltage arc to generate a lot of active steam with the nano particle size,and the active steam flows out of the nano steam channel. The graphene nano steam generation device and the cosmetic instrument disclosed by the invention can continuously and stably manufacture a lotof nano steam and have the advantages of simple manufacturing technology, low manufacturing cost and convenience in large-scale industrial production.