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. 2019 Nov 12;11(11):1864. doi: 10.3390/polym11111864

Figure 5.

Figure 5

(a) The design of the ladder with two hinges. (b) Each hinge contains a reversible component. (c) The printed ladder. (d) After swelling for 10 h in low temperature water, it was bent into a bench shape, then heated to 75 °C, and then cooled to room temperature. (e) The bench is hard and can withstand a load of 50 g. (f) When the bench is placed in high temperature water (75 °C), the curved shape is restored. The scale bars represent 20 mm [70]. Copyright (2016) Springer Nature.