Korea Institute of Science and Technology

Cheol-Min Yang

Min Su Park

Yong Chae Jung

Junyeon Hwang

Jaesang Yu

Minkook Kim

Eun Sil Lee

Sang Hyun Lee

Hun-Su Lee

Ki Hyun Ryu

Min Wook Lee

Hun-su Lee

Hyunsu Kim

Dongsu Lee

Daun Lim

Hye Jin Yoo

Seong Yun Kim

Yongtak Kim

Wonjin Na

A radar-absorbing fiber-reinforced structure includes a fiber composite discharging part. The fiber composite discharging part includes a first electrode part and a second electrode part, which are spaced apart from each other by a dielectric layer and receive different voltages. The fiber composite discharging part is configured to discharge plasma in response to a voltage difference thereby changing a reflected wave or transmitted wave of a radar incident on the radar-absorbing fiber-reinforced structure to reduce reflectivity of the radar. At least one of the first electrode part and the second electrode part include a conductive fiber having a tensile strength equal to or more than 0.5 GPa.

Radar-absorbing fiber-reinforced structure using plasma discharge of fiber-reinforced composite and stealth system including the same

The present disclosure relates to a carbon-fiber-reinforced composite including a plurality of stacked thermoplastic layers, and a plurality of carbon fiber reinforcing layers interposed between the thermoplastic layers, wherein the carbon-fiber-reinforced composite further comprises a stitching part stitched with an upper yarn and a lower yarn from outside of the thermoplastic layers at a folding location of the carbon-fiber-reinforced composite.

Post-forming method of carbon-fiber-reinforced thermoplastic composite using stitching technique

Disclosed is an ultrafine fiber including lignin, a carrier polymer and a carbon material. The ultrafine fiber, which includes lignin, can exhibit the properties of lignin such as antibacterial property, biodegradability, etc. Accordingly, it can be used widely in medical materials such as nanofiber, nanofiber web, nanofiber sheet, etc. for wound healing of the skin's dermal layer. Also, the ultrafine fiber can be used in sheath of electric cables because it contains a carbon material and has superior conductivity. In addition, because the ultrafine fiber can hold a large quantity of water, it can be used in various fields including sanitary pads for women, diapers for babies and adults, etc.

Lignin-containing coating composition and ultrafine fibers including the same

Disclosed are lignin microcapsules including lignin as a shell material and at least one of oil and a carbonaceous material as a core material. The lignin microcapsules may be formed by carried out polymerization in an oil-in-water emulsion including lignin, oil and water and further including a carbonaceous material. Since lignin has a phenol structure, the microcapsules including lignin may be formed to have antibacterial property. Thus, the lignin microcapsules may be used widely in various fields, such as additives for composite materials.

Lignin microcapsule and method of producing the same

Growing community of inventors

Wanju-gun, South Korea

Cheol-Min Yang