한국분말재료학회지 (Journal of Powder Materials)

  • 제16권2호
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  • Pages.110-114
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  • 2009
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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고에너지볼밀을 이용한 PVA 고분자가 표면 코팅된 B4C 나노복합재 제조

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

  • 엄영랑 (한국원자력연구원 원자력재료연구부) ;
  • 김재우 (한국원자력연구원 원자력재료연구부) ;
  • 정진우 (한국원자력연구원 원자력재료연구부) ;
  • 이창규 (한국원자력연구원 원자력재료연구부)
  • Uhm, Young-Rang (Division of Nuclear Materials Research, Korea Atomic Energy Research Institute (KAERI)) ;
  • Kim, Jae-Woo (Division of Nuclear Materials Research, Korea Atomic Energy Research Institute (KAERI)) ;
  • Jung, Jin-Woo (Division of Nuclear Materials Research, Korea Atomic Energy Research Institute (KAERI)) ;
  • Rhee, Chang-Kyu (Division of Nuclear Materials Research, Korea Atomic Energy Research Institute (KAERI))
  • 발행 : 2009.04.28
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초록

Mechanical coating process was applied to form 89 %-hydrolyzed poly vinyl alcohol (PVA) onto boron carbide ($B_4C$) 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 $B_4C$/PVA was about 50 nm. The core/shell structured $B_4C$/PVA was formed by dry milling. However, the hydrolyzed PVA of $98{\sim}99%$ with high glass transition temperature ($T_g$) was rarely coated on the powder. The $T_g$ of polymer materials was one of keys for guest polymer coating on to the host powder by solvent free milling.

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