Viscoelastic behavior of collagen furan solution. Effects of temperature on the viscoelastic behaviors of 2% (w/v) collagen furan solution were studied by dynamic oscillatory temperature sweeps using a Discovery Hybrid Rheometer 2 (TA Instruments, Sollentuna, Sweden). A 20 mm stainless steel parallel plate geometry was used. The dynamic oscillatory temperature sweeps were conducted at 1 % strain and at 1 Hz oscillation frequency, and the temperature was varied from 25 °C to 50 °C at a heating rate of 0.5 °C/min. The complex viscosity and the loss tangent were plotted against temperature.