| 초록 |
Boron nitride nanotube (BNNT) has drawn a growing attention, as an analogous material to carbon nanotube (CNT), owing to its superb physical properties such as high mechanical strength, high elasticity, high oxidation resistance (stable up to 900℃), piezoelectric, and high neutron absorptivity potentially useful as structural nanocomposite materials, nanoscale electrical devices, and aero-space materials. In this talk, we will present a non-covalent functionalization approach using poly(4-vinylpyridine) (P4VP) in order to efficiently debundle and achieve nano-dispersion of BNNTs in various protic solvents without any damages on physical properties of BNNTs. In order to emphasize the high thermal resistance and mechanical strength of BNNTs, the highly debundled BNNT dispersion is applied in fabrication of thermally regenerable ultrafiltration membranes which can exclude higher than 99.9% of latex with about 25 nm in diameter. |
