Figure 6: Thermal, mechanical, and shape memory properties of composite inks.
From: Shape-morphing composites with designed micro-architectures
(a) Tg dependence on CNF concentration in the 25:75 wt% ESBO: BFDGE base resin showing a small change at ~3 vol%. (b) Dependence of the cured material modulus on CNF concentration which shows a step change for the rubbery modulus at ~3 vol% CNF, indicated reaching percolation of the fiber network through the resin matrix. (c) A multi-layer, mesh-like structure is printed and then folded with origami to form a box, which is heated, flattened, and then cooled to form the programmed shape shown in (d). In (e), the part is heated to 80 °C and it goes through the intermediate shape transition before recovering the primary shape. All scale bars are 1 cm.
