Shape Memory Polymer Definition and Mechanism
Advances in the synthesis and application of polycaprolactone shape memory polymer biomaterials
... uniform shape memory transitions in comparison to amorphous materials and may provide improved properties for high performance applications such as drug delivery and dynamic cell ...rapid shape ...
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Computational Modeling of Shape Memory Polymer Origami that Responds to Light.
... Abstract Shape memory polymer sheets patterned with black ink hinges self-fold in response to external stimuli such as an infrared (IR) ...final shape of the folded ...
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Mechanism of the Improvement of Shape Memory Effects in NbC Containing Fe Mn Si Based Shape Memory Alloys
... Fe-Mn-Si-based shape memory alloys in the orientational relationship of ½100 f == ½100 NbC , ð001Þ f == ð001Þ NbC are partially coherent with the matrix showing the misfit dislocations on every five ð002Þ f ...
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Modelling of loading, stress relaxation and stress recovery in a shape memory polymer
... and shape recovery has shown the utility of the Kelvin-Voigt representation, it is important to note that in both cases the modelling was initiated from a state of stress and strain corresponding to that at the ...
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Carbon-based reinforcement in shape-memory polymer composite for electrical actuation
... SMP composite incorporated with graphene SMP composites reinforced by carbon-based nanomaterials such as CNT and CNF have frequently been reported and studied. However, their trend to form aggregates in polymer ...
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Characterization of Shape Memory Polymer Foam: Biocompatibility, Visualization and Hemodynamic Interactions
... The difference between the previously reported cases and the cases reported here, was the difference in the mechanical mechanism of reticulation for puncturing the membranes between the pores. Previously, 300 µm ...
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Modelling of loading, stress relaxation and stress recovery in a shape memory polymer
... in Polymer Science and Technology, School of Physics & Astronomy, The University of Leeds, Leeds LS2 9JT, UK Abstract A multi-element constitutive model for a lactide-based shape memory ...
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The Effect of Glycerol on the Reduction of Oxidation Degradation in Shape Memory Polymer Foams
... 6 While the current SMP foams show promise as a viable alternative in the treatment of intracranial aneurysms, some limitations are present that could reduce the device’s effectiveness. One limitation is the foam’s ...
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Carbon fibre reinforced shape memory polymer composites for deployable space habitats
... reinforced shape memory polymer composite has shown 100 % shape fixity and 98 % shape recovery, which is crucial for deployable ...reinforced shape memory polymer ...
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Feasibility study of polyurethane shape-memory polymer actuators for pressure bandage application
... SMPU actuators have been subjected to tests for pressure generation and pressure readjustment at different temperatures and strains. They were also examined for repeatability and reusability and the results were ...
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Bioinspired mechanically adaptive polymer nanocomposites with water-activated shape-memory effect
... temporary shape and reverted later to the “memorized” original shape upon exposure to an external stimulus such as heat, 13 light, 57 magnetic fields, 8,9 or chemicals 10 13 are useful for a plethora of ...
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4D printing of shape memory polymer via liquid crystal display Stereolithography
... based shape memory polymer(SMP) fabricated by Liquid crystal display (LCD) Stereolithographic 3D ...high shape recovery properties including high shape recovery rate and excellent ...
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Force sensor utilizing stiffness change of shape-memory polymer based on temperature
... a shape-memory polymer (SMP) whose stiffness varies according to the ...its shape when cooled below T g and returns to its predefined shape when subsequently heated above T g ...
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Fabrication and in vitro deployment of a laser-activated shape memory polymer vascular stent
... steel, shape memory alloys (SMAs), and other metal ...drug-doped polymer [8], which requires a costly additional fabrication step ...activated shape memory polymer (SMP) is a ...
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Corrosion products and mechanism on NiTi shape memory alloy in physiological environment
... NiTi SMAs are subjected to the physiological environ- ment, the corrosion behavior affects not only their biocompatibility but also long-term implantation safety in the human body. It has been reported that corrosion ...
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Magnetic resonance flow velocity and temperature mapping of a shape memory polymer foam device
... secondary shape that is different than the original primary ...secondary shape is obtained by reforming the SMP while heated above T g and then cooling it to stabilize the new ...secondary shape is ...
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Shape Memory Materials
... Time periods in the history of humankind can be defined by the materials that people of the rele vant age used in his everyday life: Stone Age, Bronze Age, Iron Age, and in the most recent history - Synthetic Materials ...
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A ‘frozen volume’ transition model and working mechanism for the shape memory effect in amorphous polymers
... predict shape recovery behavior of shape memory polymers (SMPs), but the physical meaning of using the frozen volume parameters to describe thermomechanical properties has not been ...the ...
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CHARACTERIZATION OF THE SHAPE MEMORY BEHAVIOR OF HIGH STRENGTH NiTiHfPd SHAPE MEMORY ALLOYS
... of Shape Memory Alloys Shape memory alloys are a new class of metallic materials which have specific properties that make them more favorable compared to conventional ...original shape ...
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Porous media properties of reticulated shape memory polymer foams and mock embolic coils for aneurysm treatment
... Methods: The porous media properties — permeability and form factor — of SMP foams and mock embolic coils (MECs) were measured with a pressure gradient method by means of an in vitro clo[r] ...
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