1995 Volume 58 Issue 1 Pages 31-34
The change in rheological behavior of a gelatin solution (6.7 wt%) during cooling from 40°C to 10°C was followed with a vibrating-rod rheometer at 80 Hz. The viscosity and rigidity showed a steep rise at characteristic temperatures. The temperature where rigidity starts to increase is lower than the temperature where the viscosity does, and seems to correspond to a setting point (i.e., macroscopictransition from a sol to a gel). This behavior is discussed based on the percolation transiton theory.
