4D printed shape-memory elastomer for thermally programmable soft actuators

Abstract: Polymeric shape-memory elastomers can recover to a permeant shape from any programmed deformation under external stimuli. They are mostly cross-linked polymeric materials and can be shaped by three-dimensional (3D) printing. However, 3D printed shape-memory polymers so far only exhibit elasticity above their transition temperature, which results in their programmed shape being inelastic or brittle at lower temperatures. To date, 3D printed shape-memory elastomers with elasticity both below and above their transition temperature remain an elusive goal, which limits the application of shape-memory materials as elastic materials at low temperatures. In this paper, we printed, for the first time, a custom-developed shape-memory elastomer based on polyethylene glycol using digital light processing, which possesses elasticity and stretchability in a wide temperature range, below and above the transition temperature. Young’s modulus in these two states can vary significantly, with a difference of up to 2 orders of magnitude. This marked difference in Young’s modulus imparts excellent shape-memory properties to the material. The difference in Young’s modulus at different temperatures allows for the programming of the pneumatic actuators by heating and softening specific areas. Consequently, a single actuator can exhibit distinct movement modes based on the programming process it undergoes

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
ISSN: 1944-8252

Ereignis
Veröffentlichung
(wo)
Freiburg
(wer)
Universität
(wann)
2024
Urheber
Song, Qingchuan
Chen, Yunong
Slesarenko, Viacheslav
Zhu, Pang
Hamza, Ahmed
Hou, Peilong
Helmer, Dorothea
Kotz-Helmer, Frederik
Rapp, Bastian E.

DOI
10.1021/acsami.3c07436
URN
urn:nbn:de:bsz:25-freidok-2439897
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
14.08.2025, 10:47 MESZ

Datenpartner

Dieses Objekt wird bereitgestellt von:
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.

Beteiligte

Entstanden

  • 2024

Ähnliche Objekte (12)