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고에너지볼밀을 이용한 PVA 고분자가 표면 코팅된 B4C 나노복합재 제조 KCI 등재

The Fabrication of PVA Polymer Coated on the Surface of B4C Nanocomposite by High Energy Ball Mill

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한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

Mechanical coating process was applied to form 89 %-hydrolyzed poly vinyl alcohol (PVA) onto boron carbide (B4C) nanopowder using one step high energy ball mill method. The polymer layer coated on the surface of B4C was changed to glass-like phase. The average particle size of core/shell structured B4C/PVA was about 50 nm. The core/shell structured B4C/PVA was formed by dry milling. However, the hydrolyzed PVA of 98~99% with high glass transition temperature (Tg) was rarely coated on the powder. The Tg of polymer materials was one of keys for guest polymer coating on to the host powder by solvent free milling.

저자
  • 엄영랑 | Uhm Young-Rang
  • 김재우 | Kim Jae-Woo
  • 정진우 | Jung Jin-Woo
  • 이창규 | Rhee Chang-Kyu