[19a-P08-1~9] 4 JSAP-Optica Joint Symposia 2024 (Poster)

English Presentation

[19a-P08-1] 【Absence】Laser-induced Photothermal- and Magneto-Responsive Polymer Composites for Soft-Bodied Devices

〇Hoon Eui Jeong¹, Moonkyu Kwak³, Hosup Jung² (1.UNIST, 2.Seoul National Univ., 3.Kyungpook Nat. Univ.)

Keywords:

Laser heating,Photothermal,Responsive materials

Despite recent advancements, artificial composite muscles have not yet been able to strike the right balance between exceptional mechanical properties and dexterous actuation abilities that are found in biological systems. Here, we present an artificial composite muscle that exhibits multiple remarkable mechanical properties and demonstrates comprehensive actuating performance, surpassing those of biological muscles. This composite integrates a phase-change polymer and ferromagnetic particles, enabling active control over mechanical properties and complex actuating motions through remote photothermal laser heating and magnetic field manipulation. Consequently, the dual-responsive composite muscle can dynamically adjust its stiffness as needed, achieving a switching ratio exceeding 2.7×10³. This remarkable adaptability facilitates substantial load-bearing capacity. Moreover, it demonstrates reversible extension, contraction, bending, and twisting. We leverage these distinctive attributes to showcase the versatility of this composite muscle as a soft-bodied devices.