KR – Page 28 – TechConnect Briefs

Novel metal nanoslit by dewetting of thermally activated Au film on CNT

Im H., Seoul National University, KR

It has been studied by many research groups to fabricate nano-sized hole or slit array of metal film. By using various fabrication methods, such as photolithography, and nano-imprint, have been studied. However, there still remain [...]

Nanoemulsion Formation and characterization of Neutraceutical Components with the Sonication and Self-Assembly Methods

Choi A.J., Park C.B., Park C.G., Park C.B., Park C.G., Han S.H., Rural Development Administration, KR

In this research, we investigated the optimum condition for the preparation of O/W nanoemulsion containing surfactants, neutraceutical ingredients extracted from Angelica gigas Nakai and oil phase in ternary phase diagrams of systems, and characterized the [...]

Experiments to Investigate Electromagnetic Shielding Performance of Polyaniline-Coated Thin Films

Kim B.R., Lee H.K., Korea Advanced Institute of Science and Technology (KAIST), KR

Many studies on electromagnetic wave shielding/ absorbing materials have been performed. In particular, studies of novel materials have been carried out as an alternative to conventional shielding materials such as metallic materials. Recently, the investigation [...]

Preparation and characterization of Sulfonated High Impact Polystyrene (SHIPS) ion exchange nanofiber by electrospinning

Hwang T.S., Choi E.J., Kwak N.S., Chungnam National University, KR

The study of nanofibers has been a subject of intensive research because of their unique properties and widespread applications in many areas. Among the various methods used to prepare nanofibers, electrospinning has been very attractive [...]

Effect of Size on Properties of Nano-Structured Polymers –Transition from Macroscaling to Nanoscaling

Lem K.W., Haw J.R., Lee D.S., Brumlik C., Sund S., Curran S., Smith P., Brauer S., Schmidt D., Konkuk University, KR

The growth in investment on the effect of size in nanoscience and nanotechnology has been astounding. Among the $12.4B spent in 2006 worldwide Nanotechnology research funding (Lux Research, 2007), at least 50%, that is >$6B, [...]

Evaluations of PP-g-GMA and PP-g-HEMA as a Compatibilizer for Polypropylene/Clay Nanocomposites

Kim D-H., Son Y., Kongju National University, KR

In this study, we investigated the performances of a hydroxy ethyl methacrylate grafted PP (PP-g-HEMA) and a glycidyl methacrylate grafted PP (PP-g-GMA) as compatibilizers in PP/clay nanocomposites. The compatibilizers were prepared by melt grafting with [...]

Ag-TiO2 Coated Polyurethane Composite Nanofiber Web for Application in the Protection against Chemical and Biological Warfare Agent

Ryu S.-Y., Choi W.H., Ahn C.H., Kwak S-Y, Seoul National University, KR

Threats of chemical warfare (CW) and biological warfare (BW) agents are serious international problems. It is positively necessary to protect humankind against CW/BW agents. The objective in this work is to develop protective clothing that [...]

Graphene and polymer composite using easy soluble expanded graphite

Lee J-H., Sungkyunkwan University, KR

ESEG was prepared from a fluorinated graphite intercalation compound (FGIC) - C2F∙nClF3 containing inorganic volatile intercalating agent ClF3. The severe expanded state, together with high specific surface area of the ESEG can give us essential [...]

Poly(vinyl chloride)/TiO2 nanocomposite resin via the synthesis of TiO2 nanoparticles in vinyl chloride followed by in situ suspension polymerization

Yoo H., Kwak S-Y, Seoul National University, KR

Various methods are established and implemented to prepare polymer/TiO2 nanocomposites, but the choice of preparation method is limited in the case of most frequently used commodity polymers such as PVC, because of their enormous production [...]

Effect of nano-sized silica particle for high insulation resistance on the surface of non-oriented electrical steel

Kim J.W., Kwon M.S., Han C.H., POSCO, KR

The effect of a nano-sized silica particle on the surface insulation resistivity of non-oriented electrical steel sheet was investigated. Several kinds of nano-sized colloidal silica were mixed to the chromium-free coating solution, which is consisted [...]