摘要:
Nanofibers are manufactured while preventing explosions from occurring due to solvent evaporation. An effusing unit (201) which effuses solution (300) into a space, a first charging unit (202) which electrically charges the solution (300) by applying an electric charge to the solution (300), a guiding unit (206) which forms an air channel for guiding the manufactured nanofibers (301), a gas flow generating unit (203) which generates, inside the guiding unit (206), gas flow for transporting the nanofibers, a diffusing unit (240) which diffusing the nanofibers (301) guided by the guiding unit (206), a collecting apparatus which electrically attracts and collects the nanofibers (301), and a drawing unit (102) which draws the gas flow together with the evaporated component evaporated from the solution (300) are included.
摘要:
A carried material is carried only on a surface of nano-fibers. It includes a raw material liquid spray step that sprays raw material liquid, which is a raw material of nano-fibers, into a space, a raw material liquid electrically charging step, which applies an electric charge to the raw material liquid and makes the raw material liquid electrically charged, a nano-fiber manufacturing step that manufactures the nano-fibers by having the electrically charged and sprayed raw material liquid explode electrostatically, a carried material electrically charging step that electrically charges a carried material carried on the nano-fibers with a polarity opposite to a polarity of the electrically charged nano-fibers, and a mixing step that mixes the manufactured nano-fibers and the electrically charged carried material in a space.
摘要:
Provided is a nano-fiber manufacturing apparatus which manufactures nano-fibers by an electrostatic explosion, and has a low possibility of explosion even when a flammable solvent is used. The nano-fiber manufacturing apparatus (101) having an ejection unit (110) which ejects solution (200) that is raw material liquid for nano-fibers (200) to a manufacturing space in which the nano-fibers (200) are manufactured by an electrostatic explosion of the solution (200), and a charging unit which charges the solution (200). The nano-fiber manufacturing apparatus (101) includes a gas supply source (103) which supplies safety gas to change an atmosphere of the manufacturing space, in which the solution (200) is ejected, into a low oxygen atmosphere, and a partition (102) which maintains the manufacturing space at a lower oxygen atmosphere than an atmosphere of an outside space of the partition (102).
摘要:
A nanofiber spinning method and device for producing a high strength and uniform yarn made of nanofibers. The device includes: a nanofiber producing unit (2) which produces nanofibers (11) by extruding polymer solution, prepared by dissolving polymeric substances in a solvent, through small holes (7) and charging the polymer solution, and by allowing the polymer solution to be stretched by an electrostatic explosion, and which allows the nanofibers to travel in a single direction; a collecting electrode unit (3) to which an electric potential different from that of the charged polymer solution is applied, and which attracts the produced nanofibers (11) while simultaneously rotating and twisting the nanofibers, and gathers them for forming a yarn (20) made of the nanofibers (11); and a collecting unit (5) which collects the yarn (20) passed through the center of the collecting electrode unit (3).
摘要:
Nanofibers are formed from a polymer material by rotating a conductive rotating container having a plurality of small holes while supplying a polymer solution formed by dissolving a polymer material in a solvent into the rotating container, charging the polymer solution discharged from the small holes of the rotating container by charging means, and drawing the discharged filamentous polymer solution by centrifugal force and an electrostatic explosion resulting from evaporation of the solvent. The nanofibers from this production step are oriented and made to flow from one side toward the other side in a shaft center direction of the rotating container by a reflecting electrode and/or blowing means, or those nanofibers are deposited, to produce a polymer web. The nanofibers and the polymer web using these nanofibers can be produced uniformly by a simple configuration with good productivity.
摘要:
A nanofiber manufacturing apparatus for fabricating nanofibers from a raw material liquid by electrostatic explosions includes a housing internally having an electrospinning space in which nanofibers are fabricated, and a support structure for supporting an electrospinning head including nozzles for ejecting the raw material liquid into the electrospinning space. The support structure is fittable to and removable from the housing and is enabled to self-stand in a state of having been removed from the housing.
摘要:
A nanofiber production device produces nanofibers by stretching, in a space, a solution. The nanofiber production device includes: an effusing body which effuses the solution into the space by centrifugal force; a driving source which rotates the effusing body; a supplying electrode which is placed at a predetermined distance from the effusing body and supplies charge to the solution via the effusing body; a charging electrode to which a potential of reverse polarity to a polarity of the effusing body is applied, with the charging electrode being placed at a predetermined distance from the effusing body; and a charging power source which applies a predetermined voltage between the supplying electrode and the charging electrode.
摘要:
In a nanofiber manufacturing apparatus (1) which produces nanofibers by electrically stretching a solution in space, a hollow supporting unit (32) which is rotated around an axial line AL by a motor (41) supports a cartridge (33) which supplies a solution (20) stored therein, a pressurizing member (38) is pressurized by air introduced through a rotary joint (43) so that the solution (20) flows into an interior space (34a) of an effusing body (34) which is rotated together with the supporting body (32), and the solution (20) is radially effused from effusing holes (34c) by the pressure of the air and centrifugal force due to the rotation of the effusing body (34).
摘要:
A method for manufacturing a fine polymer including: generating superheated steam by a superheated steam generating unit (101); adjusting the pressure of the generated superheated steam by a pressure adjusting unit (102); receiving a polymer by a reception unit (103); heating the received polymer to a predetermined temperature by a heating unit (104); discharging the heated polymer through a first discharge port (111); and discharging the superheated steam through a second discharge port (121) at the same time as the time when the heated polymer is discharged. Here, the second discharge port (121) surrounds the first discharge port (111), and the first discharge port (111) and the second discharge port (121) face the same direction.
摘要:
Provided is a nanofiber manufacturing apparatus including an effusing body (115) having an effusing hole (118) which allows the solution (300) to effuse in a given direction, a charging electrode (128) which is conductive and is disposed at a given distance from the effusing body (115), a charging power supply (122) configured to apply a given voltage between the effusing body (115) and the charging electrode (128), and a determining unit (102) configured to determine a flight path of the solution (300) and the nanofibers such that a length of the flight path C is longer than a shortest path length B which is a length of a shortest imaginary path connecting an end opening (119) of the effusing hole (118) and an accumulation part A on which the nanofibers (301) are accumulated.