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http://dx.doi.org/10.4150/KPMI.2015.22.6.403

Dispersion Control and Characterization of the SiO2/PMMA Particles Using Surface Charge  

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)
Publication Information
Journal of Powder Materials / v.22, no.6, 2015 , pp. 403-407 More about this Journal
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
Zeta-Potential; PMMA; Silica; Surface charge; Dispersion;
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Times Cited By KSCI : 1  (Citation Analysis)
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