Materials as machines

JM McCracken, BR Donovan, TJ White - Advanced Materials, 2020 - Wiley Online Library
Abstract Machines are systems that harness input power to extend or advance function.
Fundamentally, machines are based on the integration of materials with mechanisms to …

Effect of multi-armed chain extender on microphase morphology, stress-strain behavior and electromechanical properties of polyurethane elastomers

Y Liang, T Cui, L Liu - Polymer, 2021 - Elsevier
High dielectric constant and low modulus of thermoplastic polyurethane elastomers (PUEs)
are required for various applications in actuators, sensors and energy harvestings. In this …

Elastocaloric properties of thermoplastic polyurethane

G Coativy, H Haissoune, L Seveyrat, G Sebald… - Applied Physics …, 2020 - pubs.aip.org
Very few studies have explored the elastocaloric effect of elastomers other than natural
rubber (NR). The aim of the present article is thus to evaluate the elastocaloric properties of …

Control of crystal morphology and its effect on electromechanical performances of electrostrictive P (VDF-TrFE-CTFE) terpolymer

Q Liu, C Richard, JF Capsal - European Polymer Journal, 2017 - Elsevier
Interplay of microstructure and electromechanical properties of the poly (vinylidenefluoride-
trifluoroethylene-chlorotrifluoroethylene)(P (VDF-TrFE-CTFE)) terpolymer were studied by …

Mesophase Structure‐Enabled Electrostrictive Property in Nylon‐12‐Based Poly(ether‐block‐amide) Copolymers

T Wongwirat, M Wang, Y Huang… - Macromolecular …, 2019 - Wiley Online Library
To search for alternative electrostrictive polymers and to understand the underlying
mechanism, the structure‐ferroelectric/electrostrictive property relationship for nylon‐12 …

Effect of ionic liquid on soft epoxy-amine electroactuators

A Blain, V Perrin, L Seveyrat, F Dalmas, S Livi… - Polymer, 2024 - Elsevier
Energy conversion represents a challenge in various fields of applications such as soft
robotics or microfluidics technologies, particularly in terms of electromechanical coupling for …

Role of charge carriers in long-term kinetics of polyurethane electroactuation

G Coativy, K Yuse, G Diguet, V Perrin… - Smart Materials and …, 2022 - iopscience.iop.org
Previous work has shown that dielectrophoretic body forces resulting from permittivity and
conductivity heterogeneities only partially contribute to the overall electromechanical …

Physical behavior of electrostrictive polymers. Part 1: Polarization forces

G Diguet, JY Cavaille, G Sebald, T Takagi… - Computational Materials …, 2021 - Elsevier
The electrostrictive response of soft elastomers with the same stiffness, strongly depends on
their chemical nature and their typically multiphase microstructure. Moreover, some …

Promoted osteoconduction of polyurethane–urea based 3D nanohybrid scaffold through nanohydroxyapatite adorned hierarchical titanium phosphate

SK Ghorai, S Maji, B Subramanian… - ACS Applied Bio …, 2019 - ACS Publications
The lack of optimal physiological properties, bacterial colonization, and auto-osteoinduction,
are the foremost issues of orthopedic implantations. In terms of bone healing, many …

Difference between electrostriction kinetics, and mechanical response of segmented polyurethane-based EAP

MH Jomaa, L Seveyrat, V Perrin, L Lebrun… - Smart Materials and …, 2017 - iopscience.iop.org
Among the key parameters, which must be taken into account for the choice of actuators
used as electrical to mechanical energy converters, the response to a step function and/or …