- The Fabrication of PVA Polymer Coated on the Surface of B4C Nanocomposite by High Energy Ball Mill
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Young-Rang Uhm, Jae-Woo Kim, Jin-Woo Jung, Chang-Kyu Rhee
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J Korean Powder Metall Inst. 2009;16(2):110-114.
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DOI: https://doi.org/10.4150/KPMI.2009.16.2.110
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- 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 98sim99% 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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Citations
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