Gel Point Determination of TEOS-Based Polymeric Materials with Application on Conservation of Cultural Heritage Buildings

Figure 1

(a) Viscosity as a function of shear rate measured at different times after sample preparation at T=25°C: black squares (t = 0 h), red circles (t = 5 h), green up triangles (t = 12 h), blue down triangles (t = 16 h), cyan diamonds (t = 28 h), pink stars (t= 29 h), and dark yellow pentagon (t = 30 h). (b) Normalized viscosity measured as a function of time (squares) and power law fit, , to the experimental data, where and s are fitting parameters (continuous line).

(a)

(b)