Fig. 4: Dynamicity and mechanical properties. | Nature Communications

Fig. 4: Dynamicity and mechanical properties.

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

Fig. 4

a Relationships between tensile strength and self-healing efficiency and trigger temperature of various PTUs in comparison with those of the previously reported healable polymers containing different reversible covalent/non-covalent bonds (The numbers next to symbols represent the bibliographies. Here, the strengths refer to those of the original materials. All the materials are not treated by solid-state drawing, except PTU18 that is stretched to the maximum stroke (1 mm min−1, 60 °C) and kept for 100 min). b, c Tensile strengths and elongation at break of (b) uniaxially and (c) biaxially drawn PTU18 as a function of drawing ratio (The error bars show the standard deviations from at least five tests). d Real-time FTIR spectra of the -NH- peaks of stretched PTU18.

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