Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Dispersion Control and Characterization of the SiO2/PMMA Particles Using Surface Charge

표면전하를 이용한 SiO2/PMMA 분말의 분산 제어 및 평가

  • Kang, Yubin (Department of Energy Engineering, Dankook University) ;
  • Son, Soojung (Department of Energy Engineering, Dankook University) ;
  • Lee, Kun-Jae (Department of Energy Engineering, Dankook University)
  • 강유빈 (단국대학교 에너지공학과) ;
  • 손수정 (단국대학교 에너지공학과) ;
  • 이근재 (단국대학교 에너지공학과)
  • Received : 2015.11.17
  • Accepted : 2015.12.09
  • Published : 2015.12.28
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Abstract

Poly-methylmetacrylate (PMMA) is mainly applied in the plastic manufacturing industry, but PMMA is weak and gradually got discolor. The strength of PMMA can be improved through organic-inorganic hybrid nano composites with inorganic nano particles such as, $SiO_2$ or ZrO. However, inorganic nano particles are mostly agglomerated spontaneously. In this study, the zeta potential is controlled using different types of organic solvent with different concentrations, dispersibillity of $SiO_2$ nano particles on the PMMA particle are analyzed. When 3 M acetic acid is used, absolute value of the zeta potential is higher, $SiO_2$ nano particle is well attached, and dispersed on the PMMA particle surface. Results indicate that the absolute value of the zeta potential affects the stability of $SiO_2$ dispersion.

Keywords

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