Russo, Claudio published the artcileElectro-responsive shape-memory composites obtained via dual-curing processing, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate), the main research area is electro responsive shape memory composite dual curing.
In this work, electro-responsive shape-memory actuators were developed by incorporating a conductive heater in a dual-curing thiol-acrylate-epoxy shape-memory polymer (SMP). A conductive heater, consisting of an elec. conductive silver-ink track printed on Kapton substrate, was assembled to the SMP, taking advantage of the dual-curing processing. The shape-memory effect (SME) was activated by the heat dissipated by the Joule effect in the conductive track. Boron nitride agglomerates were dispersed in the thiol-acrylate-epoxy layers to increase thermal conductivity and achieve faster shape-recovery. A thermoelec. control unit was developed to control the shape recovery of the electro-responsive actuators and provide different activation strategies. The elec. activated SME was investigated and compared to a traditional SME based on an external heating source given by the dynamic mech. analyzer (DMA) apparatus Electro-responsive actuators were found extremely faster than the conventional SMPs based on external heating. The fastest recovery was obtained by the 15% boron nitride actuator, which recovered the 100% of the original shape in only 8 s. The thermoelec. controlling device provided an optimal control of the shape recovery speed based on the pulse width modulation of the heating current under the application of a low voltage (5 V).
Polymers for Advanced Technologies published new progress about Actuators. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate).
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