| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide translucent or transparent titanium dioxide sols which comprise amorphous titanium dioxide and an organic peptizing agent and are stable for a long time and useful in particulate binding applications.SOLUTION: The sols are prepared from titanium dioxide precursors including organotitanium compounds and water-soluble titanium salts that are treated to precipitate amorphous titanium dioxide. The amorphous titanium dioxide is re-dispersed and peptized in an aqueous solution containing the organic peptizing agent, which is a mono-, di- or tri-alkyl base, to form a translucent or transparent mixture with an average particle size of less than 50 nm, preferably an average particle size of less than 10 nm.</p> |
