Two high-char-yield polysiloxane polymers developed. Designated as TEOS-A and TEOS-B with silica char yields of 55% and 22%, respectively. These free-flowing polymers are Newtonium liquids instead of thick gels. Easily synthesized by controlled hydrolysis of inexpensive tetraethoxysilane (TEOS). Adhesive properties of TEOS-A suggest its use as binder for fabrication of ceramic articles from oxide powders. Less-viscous and more-fluid lower-molecular-weight TEOS-B used to infiltrate already-formed porous ceramic compacts to increase densities without effecting shrinkage. Also used as paint to coat substrate with silica, and to make highly pure silicate powders.
Silica Precursors Derived From TEOS
NASA Tech Briefs ; 17 , 5
01.05.1993
Sonstige
Keine Angabe
Englisch
NTRS | 1981
|Roller Duo: Funky oder Klassiker? Doodo und Teos
Kraftfahrwesen | 2000
|Offshore & Meerestechnik - TEOS-10 - New international equation for sea water
Online Contents | 2010
Study on the Sol-Gel Process of TEOS by React-IR
British Library Conference Proceedings | 2012
|