Rheology of titanium oxide based gels: determination of gelation time versus temperature

Rheological Study of the Sol–Gel Transition in Silica Alkoxides

“…This evolution of gelation time versus temperature is found in chemically cross-linking systems. The same type of linearization has been verified for cross-linking and gelation in chlorobutyl elastomer systems (29) and titanium oxide based gels (30).…”

Physico-chemical control of sol–gel transition of titanium alkoxide-based materials studied by rheology

“…The effects of the parameters 0022-3093/$ -see front matter Ó 2004 Elsevier B.V. All rights reserved. doi:10.1016/j.jnoncrysol.2004.08.243 that control the gelation process (titanium concentration, acetylacetone concentration, hydrolysis molar ratio and a wider range of temperature compared to a previous study [9]) are studied.…”

Sol–gel transition study and pyrolysis of alumina-based gels prepared from alumatrane precursor

“…Table 3 Temperature effect on the gel time, and dynamic properties for pH 9 and h = 9, 18 and 27 Many studies of critical gel rheological properties were found that most results show n ≥ 0.5. Values of n below 0.5 have also been found [23,[26][27][28][29]. Winter reported that if n > 0.5, the gel point preceded the intersection of G and G .…”

“…The gel point is associated with the occurrence of statistical loss factor self-similarity. In this way, the gel time is obtained by the minimum of the curve log(s/(tan δ)) as a function of reaction time where s is the standard deviation of tan δ in a frequency sweep [26].…”