Modification of Spherical Silica Particles with a Silanepolyol and Characterization of Its Morphological Changes
- Modification of Spherical Silica Particles with a Silanepolyol and Characterization of Its Morphological Changes
- 이중석; 한준수; 유복렬
- Issue Date
- 제108회 대한화학회
- Much attention has been paid to the surface modification of inorganic particles to have a hydrophobic
property on its surface that can be applicable to a polymer composite. We have been evaluating the
silanepolyols as a modifier instead of alkoxysilane, which is widely used. In this study, spherical silica
(230?30 nm) was prepared and modified with a silanepolyol, PhSi(OH)3, in a wide range from 0.1 to 10
wt % based on the silica used. Hydrophobic properties were examined by floating the modified particles
on D.I. water and contact angle test by forming pelletized discs that the results presented the modified
particles had a hydrophobic property even at a low amount of modifier (0.2 wt%). Herein, recent results
for the surface modification approach to silica and the trend of morphological change at the case of
pelletized discs will be discussed.
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