Abstract:
The present invention relates to a separation membrane having both antibiotic and hydrophilic properties for water treatment and a preparation method thereof. In the separation membrane of the present invention, since an organic compound (antimicrobial and/or hydrophilic compound) is chemically conjugated to non-metal inorganic nanoparticles or metal nanoparticles, the nanoparticles are not eluted from the separation membrane even when the separation membrane is used for water treatment for a long period of time, so that the separation membrane may continuously maintain antimicrobial properties and high water permeability, is safe to the human body even when used for the treatment of drinking water, such as water purification, and exhibits characteristics in which stain resistance is also significantly enhanced due to antimicrobial and hydrophilic properties, which have been continuously imparted. Furthermore, high mechanical strength is exhibited by a metal or inorganic nanofiller introduced.
Abstract:
The present invention is applicable in the field of substrates for high-frequency circuits, and for example, relates to a composite polyimide substrate, a composite polyimide composition, and a printed circuit board using same. The composite polyimide substrate according to the present invention may include: a substrate main body including a polyimide of which at least a portion has been substituted with a polyester group; and polytetrafluoroethylene (PTFE) particles included in the substrate main body.
Abstract:
The present disclosure relates to polyimide and a preparation method thereof. The polyimide according to an embodiment of the present disclosure comprises: silica having pores; and a fluorinated alkyl chain attached to the surface of the silica having pores, and is prepared by mixing a dispersion solution comprising the silica having pores and an organic solution comprising a polyimide precursor. Accordingly, hygroscopicity is reduced, and dispersibility can be enhanced.
Abstract:
The present invention is applicable to a field of a substrate for a high-frequency circuit, and relates, for example, to a composite polyimide film, a producing method thereof, and a printed circuit board using the same. More specifically, the composite polyimide film includes a film matrix including polyimide; and a plurality of filler particles dispersed in the film matrix, wherein each of the filler particles includes an inorganic particle, and a fluorine polymer coating formed on the inorganic particle.
Abstract:
A controlling method for a dryer is applied to a dryer, in which at least one of a heat pump system and a heater is selected as a heat source for heating air supplied in to a drum and a heat supply capacity of the heat pump system is more than that of the heater. The controlling method includes, when both the heat pump system and the heater are selected as the heat sources, turning the heat pump system on, turning the heater on after the heat pump system is normally turned on, turning the heater off to cool the drum and terminate drying after the drying is performed, and turning the heat pump system off after the heater is turned off.
Abstract:
A clothes dryer includes a rotatable drum, a drum supporter for supporting the drum, the drum supporter being provided with a discharge port for discharging air from the drum, a circulation channel for guiding the air discharged through the discharge port into the drum, and a filter cartridge disposed in the circulation channel for filtering air, wherein the filter cartridge includes an inside filter cartridge for filtering air discharged from the drum and an outside filter cartridge for filtering air that has passed through the inside filter cartridge, the outside filter cartridge being disposed in the circulation channel, the inside filter cartridge being separably received in the outside filter cartridge through an opening formed in the outside filter cartridge, and wherein the inside filter cartridge is provided with an interference protrusion, and the outside filter cartridge is provided with a restraint protrusion for restraining the interference protrusion.
Abstract:
Antennas capable of supporting high frequencies are disclosed, for example, a transparent antenna applicable to glass for vehicles is disclosed. A transparent antenna installed on a glass includes an adhesive layer attached to the glass, a transparent substrate disposed on the adhesive layer, an antenna structure layer disposed on the transparent substrate, a protective layer disposed on the antenna structure layer, and a power feeding portion connected to the antenna structure layer.
Abstract:
In one aspect of the present disclosure, a laundry treating apparatus includes a cabinet having a laundry receiving hole defined in a front surface portion thereof; a door pivotally coupled to the front surface of the cabinet for selectively opening and closing the laundry receiving hole, the door including: a door cover defining a front appearance; and a door frame coupled to a rear surface of the door cover; a hinge assembly pivotally connecting the door to the front surface of the cabinet, the hinge assembly including: a hinge cover; and a hinge body pivotally coupled to the hinge cover; and a latch assembly coupled to an edge of a rear surface of the door. A mount rib is inserted into a mount rib receiving groove to prevent sagging of the door.
Abstract:
A method for controlling a dryer according to an embodiment of the present invention includes: an operation of, when a dusting mode is selected and a start command is input, rotating a drying drum at a first rotational speed V1 in a first direction for a first set time; an operation of, after the first set time elapses, rotating the drying drum at a second rotational speed V2 in a second direction opposite to the first direction for a first set time; and an operation of rotating a drying fan along with the drying drum, when the drying drum rotates in the second direction, dust staining on an object introduced into the drying drum is separated from the object, and when the drying drum rotates in the first direction, the separated dust is discharged to the outside of the drying drum by a forced air flow generated by the drying fan.
Abstract:
A dryer, including a cabinet with an entry hole formed on the front surface thereof, a door being installed in the entry hole, a drum disposed within the cabinet and rotatable therein, an evaporator disposed in the cabinet to remove moisture from air circulating through the drum by condensing the moisture, a drawer space disposed under the entry hole and depressed backward from the front surface of the cabinet, a drawer disposed in the drawer space to move with respect to the cabinet so that it is pulled out from the drawer space, a condensate discharge container to store condensate from the evaporator, the condensate discharge container being detachably held in the drawer, and exposed to a user when the drawer is pulled out, and a guide supporter to couple a cabinet-side structure and a drawer-side structure and to guide the pulling out of the drawer.