Abstract
The viscosity behaviour of SiO 2 ZrO 2 gelling solutions in dimethylformamide is affected by addition of acetic anhydride, which prolongs the time window suitable for fiber production. This effect is attributed to esterification of the Si OH terminal groups of silica oligomers, avoiding their condensation by cross-linking. The proposed mechanism agrees with the loss of effectiveness of acetic anhydride in n-butanol.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
