논문 상세보기

Functionalization of Multi-walled Carbon Nanotube by Treatment with Dry Ozone Gas for the Enhanced Dispersion and Adhesion in Polymeric Composites KCI 등재

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/259809
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
Carbon Letters (Carbon letters)
한국탄소학회 (Korean Carbon Society)
초록

A method of functionalization of multi-walled carbon nanotube (MWNT) at room temperature using dry ozone gas is described. The resulting MWNT were characterized by Fourier transform infrared, x-ray photoelectron spectroscopy, and scanning electron microscopy. Combined to these analyses and solubility in liquids, it could be concluded that the dry ozone gas exposure introduces polar functional groups such as carboxylic groups to MWNT similar to acidic modification of MWNT. Particularly, the stable dispersion of MWNT in water after ozone treatment above a critical level could be obtained, implying potential bio-application. The hydrophilic functional groups on the MWNT introduced by ozone oxidation were helpful in improving the interaction with functional groups in PA6 such as -NH2 and -CONH- resulting in improved mechanical properties.

저자
  • Jung-Hwan Kim(Department of Nano-Bio Textile Engineering, Kumoh National Institute of Technology)
  • Byung-Gil Min(Department of Nano-Bio Textile Engineering, Kumoh National Institute of Technology)