Fig. 5: Auxetic deformation behavior of structured eutectogels.
From: Mechanically robust eutectogels enabled by precisely engineered crystalline domains
a Schematic illustration of the re-entrant structural unit incorporated into the eutectogel via laser manufacturing. b Optical images capturing the progressive unfolding and auxetic deformation of structured LR-PVA20 eutectogel from its initial state to 60% strain. Scale bar: 5 mm. c Poisson’s ratio as a function of axial strain, and d force-displacement curves of structured R-PVA20, L-PVA20, and LR-PVA20 eutectogels. The structured LR-PVA20 exhibited the highest fracture force and an apparent hierarchical fracture phenomenon (marked by arrows and numbers). e Comparison of the maximum force and minimum Poisson’s ratio achieved by structured R-PVA20, L-PVA20, and LR-PVA20 eutectogels. Data are presented as mean values ± SD, n = 3.
