Fig. 3: Dynamicity, self-healability and reprocessability. | Nature Communications

Fig. 3: Dynamicity, self-healability and reprocessability.

From: Tailored modular assembly derived self-healing polythioureas with largely tunable properties covering plastics, elastomers and fibers

Fig. 3

Normalized stress relaxation of (a) PTU1 and (b) PTU11 as a function of temperature. The insets show the temperature variations of the characteristic relaxation time, τ*, fitted according to Arrhenius equation. Storage shear modulus, G’, and loss shear modulus, G”, versus frequency of (c) PTU1 and (d) PTU11 recorded at different temperatures, respectively. Healed version of bisect PTU1 subjected to (e) a lateral load of 200 g in the single cantilever mode, and (f) a 5 kg weight in the parallel direction (35 × 2 × 1.2 mm). g Photos showing molding of pulverized PTU1 into square sheet and dog-bone-shaped specimens via hot pressing (100 °C, 4 MPa, 4 h). h Typical tensile stress-strain curves of the virgin and repaired PTUs. i Typical tensile stress-strain curves of the recycled PTU1.

Back to article page