Improving the Deformability and Recovery Moment of Shape Memory Polymer Composites for Bending Actuators: Multiple Neutral Axis Skins and Deployable Core.

ABSTRACT: Shape memory polymer composite (SMPC) actuators have received significant attention for applications in space deployable structures because of their light weight and simple actuating process without any additional components. However, conventional SMPC actuators exhibit limited deformation owing to damages caused by the slight elongation of fibers and microbuckling. In this study, we designed a sandwich-structured SMPC bending actuator to increase deformability and the recovery moment with two novel features: multiple neutral axis (MNA) skins and a deployable core. The MNA skins were fabricated as layered structures of a soft layer (the polydimethylsiloxane/ethoxylated polyethylenimine layer) and hard layers (the SMPC layer) based on the MNA effect derived from the large modulus difference

SUBMITTER: Kang D 

PROVIDER: S-EPMC10360064 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature