Shape memory polymer composite device with embedded heater for one way soft actuation
Loredana SANTO, Denise BELLISARIO, Alice PROIETTI, Giorgio PATRIZII, Dounia NOQRA, Fabrizio QUADRINI, Leandro IORIO
Abstract. A novel architecture of shape memory polymer composite (SMPC) sandwich actuator has been designed and prototyped. Epoxy foams obtained by a solid-state process without the use of foaming agent were placed in the center of the device. High performance Carbon Fiber Reinforced (CFR) prepreg was used for the external skins and at the edges of the device to increase the stiffness of the actuator. Thermal activation was obtained through a flexible heater powered with a maximum tension of 26 V. Moreover, SM thin layer (interlayer) obtained by the same resin used for the foam were deposited to insulate the heater from the CFR plies and to allow adhesion of the foam to the bottom CFR skin. Two more actuators in the forms of a 2-ply laminate and of a 2-ply sandwich with two epoxy foams placed in the center of the device were also manufactured for comparison. All the actuators were manufactured by a hot press moulding process. At the end of manufacturing, optical images revealed the soundness of the manufacturing procedure. Memory, constrained recovery and free recovery tests in three point bending configuration were performed to evaluate the shape memory performances and the actuation loads. The developed actuator exhibited the highest value of shape fixity (97 %) and high shape recovery ratio (95 %) with also interesting actuation load of about 2.3 N.
Keywords
One-Way Actuator, Shape Memory Polymer Composite, Compression Moulding, Epoxy Foams, Soft Robotics
Published online 5/7/2025, 10 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Loredana SANTO, Denise BELLISARIO, Alice PROIETTI, Giorgio PATRIZII, Dounia NOQRA, Fabrizio QUADRINI, Leandro IORIO, Shape memory polymer composite device with embedded heater for one way soft actuation, Materials Research Proceedings, Vol. 54, pp 2141-2150, 2025
DOI: https://doi.org/10.21741/9781644903599-230
The article was published as article 230 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] Y. Liu, H. Du, L. Liu, J. Leng, Shape memory polymers and their composites in aerospace applications: a review, Smart Mater. Struct. 23(2) (2014). https://doi.org/10.1088/0964-1726/23/2/023001
[2] B. Tatár, L. Mészáros, Shape memory effect in cross‑linked polyethylene matrix composites: the effect of the type of reinforcing fiber, Polymer Bullettin. 81 (2024) 6311-6323. https://doi.org/10.1007/s00289-023-05003-0
[3] J. Karger-Kocsis, S. Kéki, Review of Progress in Shape Memory Epoxies and Their Composites, Polymers, 10 (34) (2018). https://doi.org/ 10.3390/polym10010034
[4] R. Sanaka, S. Kumar Sahu, P.S. Rama Sreekanth, K. Senthilkumar, N. Dhar Badgayan, B. Venkata Siva, Q. Ma, A Review of the Current State of Research and Future Prospectives on Stimulus-Responsive Shape Memory Polymer Composite and Its Blends, J. Compos. Sci. 8 (324) (2024). https://doi.org/10.3390/jcs8080324
[5] J. Lee, J. H. Han, Separation and Release Devices for Aeronautical and Astronautical Systems: A Review, International Journal of Aeronautical and Space Sciences. (2024). https://doi.org/10.1007/s42405-024-00802-9
[6] A. Sarker, T. U. Islam, Md. R. Islam, A Review on Recent Trends of Bioinspired Soft Robotics: Actuators, Control Methods, Materials Selection, Sensors, Challenges, and Future Prospects, Adv. Intell. Syst. (2024). https://doi.org/10.1002/aisy.202400414
[7] X. Qiu, X. Zhang, Self-healing polymers for soft actuators and robots, J. Polym. Sci. 62 (2024) 3137 – 3155. https://doi.org/10.1002/pol.20230496
[8] H. Rodrigue, J. Kim, Soft actuators in surgical robotics: a state-of-the-art review, Intelligent Service Robotics, 17 (2024) 3–17. https://doi.org/10.1007/s11370-023-00506-1
[9] P. Robinson. A. Bismark, B. Zhang, H.A. Maples, Deployable, shape memory carbon fibre composites without shape memory constituents, Compos. Sci. Technol. 145 (2017) 96-104. https://doi.org/10.1016/j.compscitech.2017.02.024
[10] F. Quadrini, D. Bellisario, L. Iorio, L. Santo, Shape memory polymer composites by molding aeronautical prepregs with shape memory polymer interlayers, Mater. Res. Express. 6(11) (2019) art n° 115711. https://doi.org/10.1088/2053-1591/ab50ad
[11] F. Quadrini, L. Iorio, D. Bellisario, L. Santo, Durability of shape memory polymer composite laminates under thermo-mechanical cycling, J. Compos. Sci. 6(3) (2022). https://doi.org/10.3390/jcs6030091
[12] L. Iorio, F. Quadrini, L. Santo, C. Circi, E. Cavallini, R. C. Pellegrini, Shape memory polymer composite hinges for solar sails, Advances in Space Research 74 (2024) 3201–3215. https://doi.org/10.1016/j.asr.2024.07.010
[13] F. Quadrini, L. Iorio, L. Santo, C. Circi, E. Cavallini, R. C. Pellegrini, Smart Composite booms for solar sails, J. Compos. Sci. 7 (495) (2023). https://doi.org/10.3390/jcs7120495
[14] L. Santo, F. Quadrini, D. Bellisario, L. Iorio, A. Proietti, K.K. De Groh, Effect of the LEO space environment on the functional performances of shape memory polymer composites. Compos. Commun. 48 (2024). https://doi.org/10.1016/j.coco.2024.101913
[15] F. Quadrini, L. Iorio, D. Bellisario, L. Santo, Shape memory polymer composite unit with embedded heater, Smart Mater. Struct. 30(7) (2021). https://doi.org/10.1088/1361-665X/ac00cb
[16] L. Iorio, D. Bellisario, F. Quadrini, Manufacturing and testing of shape memory polymer composite actuators, in: Carrino, L., Galantucci, L.M., Settineri, L. (Eds), Lecture Notes in Mechanical Engineering, Springer, E-Publishng Inc., Cham, 2023, pp. 141-157. https://doi.org/ 10.1007/978-3-031-41163-2_9
[17] E.A. Squeo, F. Quadrini, Shape memory epoxy foams by solid-state foaming, Smart Mater. Struct. 19(10) (2010). https://doi.org /10.1088/0964-1726/19/10/105002
