Korea Institute of Science and Technology

Ung Su Choi

Oh Kyong Kwon

Youngkyun Jung

Sun Myung Choi

Ki Young Choi

N K Mishkin

Yoon M Jung

Provided is a method of fabricating capsules. The method includes: forming droplets of a dispersed phase solution including a phase transition material, a carbon nanomaterial, and a first monomer by allowing the dispersed phase solution to pass through nozzle units provided at a porous membrane in a reaction tank including the porous membrane; migrating the droplets into a mobile phase material including a second monomer; and forming polymer shells at interfaces between the droplets and the mobile phase material by polymerization between the first monomer and the second monomer.

Method and apparatus for fabricating capsule

A magnetic filter material is disclosed. The filter material according to the present invention comprises a spray-spun, self-bonded, nonwoven fibrous structure consisting essentially of 40 to 99% by weight of a polymer selected from the group consisting of polycarbonate, polyethylene, polypropylene, polyamide, polyimide, polyester, polytetrafluoroethylene and polyacrylonitrile and 1 to 60% by weight of a magnetic substance selected from the group consisting of barium ferrite, strontium ferrite and samarium-cobalt. The magnetic filter material of the present invention shows excellent filtration efficiency of metal impurities such as iron, iron oxides, and other metal dusts due to have a dual function by physical porosity and magnetic attraction, and thus is suitable as an air and oil filter medium for automobiles and other industrial machinery, a liquid filter medium for treating industrial waste water and oil, a filter medium in dust collecting and air-conditioning systems, and so forth.

Magnetic filter material comprising a self-bonding nonwoven fabric of

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Seoul, South Korea

Ung Su Choi