Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/35248
Title: Development of an elastomeric resin for digital light processing printing
Author: Drury, Ryan
Sencadas, Vitor
Alici, Gursel
Keywords: Manufacturing
Mechanical properties
Sensors and actuators
Synthesis and processing techniques
Issue Date: 2022
Publisher: Wiley
Abstract: Soft pneumatic actuators are ideal for soft robotic applications due to their innate compliance and high power-weight ratios, but their design is limited by the lack of suitable stretchable materials. In this study, a new highly elastic resin for digital light projection 3D printers, designated ElastAMBER, is prepared from a di-functional polyether urethane acrylate oligomer, and a blend of two different diluent monomers. ElastAMBER exhibits a viscosity of 1000 mPa s at 40 ºC, outperforming previously synthesized elastic resins and allowing easy printing at near room temperatures. The 3D-printed components present an elastomeric behavior with a maximum extension ratio (λ) of 4.02 ± 0.06, ultimate tensile strength of 1.23 ± 0.09 MPa, low hysteresis, and negligible viscoelastic relaxation. Its application in linear soft pneumatic actuators has been demonstrated using a bellows-like construction. ElastAMBER shows promise for creating intrinsically capacitive sensing actuators, displaying a strong correlation between actuator displacement and capacitance. The developed 3D printable ElastAMBER can find potential applications in sensors and actuators for many soft robotic and human-machine interface applications.
Peer review: yes
URI: http://hdl.handle.net/10773/35248
DOI: 10.1002/app.52123
ISSN: 0021-8995
Appears in Collections:CICECO - Artigos



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