CNT CNT CNT CNT Manufacturing method of CNT thin film CNT thin film Manufacturing method of hydrogen sensor using the CNT thin film and hydrogen sensor using the CNT thin film

摘要

An embodiment of the present invention provides a CNT thin film manufacturing method to easily manufacture a CNT thin film for a strain sensor or a CNT thin film for a hydrogen sensor by membrane vacuum filtration without applying a substrate and a dispersant. The CNT thin film manufacturing method comprises: a step of generating a CNT organic solvent mixture by mixing a carbon nanotube (CNT) and an organic solvent; a step of generating CNT organic solvent sludge by applying ultrasonic waves to the CNT organic solvent mixture; a step of generating a CNT dispersion solution by applying ultrasonic waves having a predetermined energy to the CNT organic solvent sludge and thus, dispersing CNT; a step of performing vacuum filtration of the CNT organic solvent mixture by using a membrane filter; and a step of curing the CNT thin film not dried by being filtered by the membrane filter, removing a residual organic solvent, and separating the CNT thin film from the membrane filter.