Laser reprogramming magnetic anisotropy in soft composites for reconfigurable 3D shaping.

ABSTRACT: Responsive soft materials capable of exhibiting various three-dimensional (3D) shapes under the same stimulus are desirable for promising applications including adaptive and reconfigurable soft robots. Here, we report a laser rewritable magnetic composite film, whose responsive shape-morphing behaviors induced by a magnetic field can be digitally and repeatedly reprogrammed by a facile method of direct laser writing. The composite film is made from an elastomer and magnetic particles encapsulated by a phase change polymer. Once the phase change polymer is temporarily melted by transient laser heating, the orientation of the magnetic particles can be re-aligned upon change of a programming magnetic field. By the digital laser writing on selective areas, magnetic anisotropies can be encoded

SUBMITTER: Deng H 

PROVIDER: S-EPMC7730436 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature