Fig. 3.
Tensile moduli of elasticity of uncrosslinked and crosslinked hydrated gelatins. The tensile moduli of uncrosslinked (square) and crosslinked (circle) gelatin for 9%, 12%, and 15% gelatin weight in water are shown. The modulus of the uncrosslinked 9% gelatin weight in water was lower than the measurement capacity of the DMA system. The horizontal line indicates the target modulus of 89 kPa. Average values (± standard deviation) are shown. The formaldehyde crosslinked 15 wt% gelatin in water is closest to the target value.