Results 21 to 30 of about 3,797,196 (253)

A torsion test for the study of the large deformation recovery of shape memory polymers [PDF]

open access: yes, 2011
A torsion device was designed and built for testing the shape fixity and shape recovery of shape memory polymers at large deformation. A simple thermal chamber was used to regulate the thermal environment during testing and a CCD camera was used for ...
GILORMINI, Pierre   +11 more
core   +1 more source

On modeling shape memory polymers as elastic two-phase composite materials [PDF]

open access: yes, 2012
A model has been proposed recently, which describes the experimentally observed mechanical behavior of some shape memory polymers. It considers a purely thermoelastic behavior, without strain rate effects, and assumes essentially that the polymer can be ...
GILORMINI, Pierre   +3 more
core   +1 more source

Thiol‐ene Reaction as Reversible Covalent Bond for the Design of Shape‐Memory Polymers

open access: yesMacromolecular Materials and Engineering, 2023
Besides a stable phase, shape‐memory polymers require an additional switchable moiety. In addition to thermal transitions and supramolecular interactions, these units can also be based on covalent bonds.
Farhad Shohraty   +6 more
doaj   +1 more source

4D optical fibers thermally drawn from shape-memory polymers [PDF]

open access: yesEPJ Web of Conferences, 2023
Adaptative objects based on shape-memory materials are expected to significantly impact numerous technological sectors including optics and photonics.
Strutynski Clément   +6 more
doaj   +1 more source

Thermal-mechanical properties of polyurethane-clay shape memory polymer nanocomposites [PDF]

open access: yes, 2010
Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
De Hosson, Jeff T M   +21 more
core   +1 more source

High performance shape memory polyurethane synthesized with high molecular weight polyol as the soft segment [PDF]

open access: yes, 2012
Shape memory polyurethanes (SMPUs) are typically synthesized using polyols of low molecular weight (MW~2,000 g/mol) as it is believed that the high density of cross-links in these low molecular weight polyols are essential for high mechanical strength ...
Miraftab, Mohsen   +15 more
core   +1 more source

Shape memory polymers: Current state and future prospects

open access: yeseXPRESS Polymer Letters, 2023
editorial
Balázs Tatár, László Mészáros
doaj   +1 more source

Predicting thermal shape recovery of crosslinked polymer networks from linear viscoelasticity [PDF]

open access: yes, 2012
The viscoelastic behavior of an amorphous shape-memory polymer network and its dependence on time and temperature were measured by dynamic mechanical analysis.
GILORMINI, Pierre   +7 more
core   +1 more source

Light activated shape memory polymers and composites: A review

open access: yes, 2020
Shape memory polymers and their composites are capable to hold a temporary shape and recover to the original shape upon exposure to a particular external stimulus. The stimulus light is considered as the optical radiation of any wavelength from 1 to 10^6
Epaarachchi, Jayantha   +4 more
core   +1 more source

Shape memory performance of asymmetrically reinforced epoxy/carbon fibre fabric composites in flexure [PDF]

open access: yes, 2013
In this study asymmetrically reinforced epoxy (EP)/carbon fibre (CF) fabric composites were prepared and their shape memory properties were quantified in both unconstrained and fully constrained flexural tests performed in a dynamic mechanical analyser ...
Fejős, M., J. Karger-Kocsis, M. Fejos
core   +1 more source

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