Properties of Aqueous Suspensions of Highly Dispersed Silica in the Presence of Polyvinylpyrrolidone |
| |
| Authors: | E V Goncharuk S V Pakhovchishin V I Zarko V M Gun'ko |
| |
| Institution: | (1) Institute of Surface Chemistry, National Academy of Sciences of Ukraine, ul. Generala Naumova 17, Kiev, 03164, Ukraine |
| |
| Abstract: | The effect of polyvinylpyrrolidone (PVP) on stability, rheological, electrokinetic and electrophysical properties of aqueous dispersions of A-300 pyrogenic silica was studied. The suspensions were shown to be most stable at PVP concentrations in the range from 0.12 to 0.24 wt % that was provided by structure-related mechanical factors. In the presence of PVP, the value of  -potential decreases, the ac conductivity increases, and rheological properties vary similarly to variations of oxide dispersity. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
