Journal ArticleDOI
Fiber reinforced shape-memory polymer composite and its application in a deployable hinge
TLDR
In this article, the shape recovery behavior of thermoset styrene-based shape-memory polymer composite (SMPC) reinforced by carbon fiber fabrics is investigated, and the feasibility of using an SMPC hinge as a deployable structure is demonstrated.Abstract:
This paper investigates the shape recovery behavior of thermoset styrene-based shape-memory polymer composite (SMPC) reinforced by carbon fiber fabrics, and demonstrates the feasibility of using an SMPC hinge as a deployable structure. The major advantages of shape-memory polymers (SMPs) are their extremely high recovery strain, low density and low cost. However, relatively low modulus and low strength are their intrinsic drawbacks. A fiber reinforced SMPC which may overcome the above-mentioned disadvantages is studied here. The investigation was conducted by three types of test, namely dynamic mechanical analysis (DMA), a shape recovery test, and optical microscopic observations of the deformation mechanism for an SMPC specimen. Results reveal that the SMPC exhibits a higher storage modulus than that of a pure SMP. At/above Tg, the shape recovery ratio of the SMPC upon bending is above 90%. The shape recovery properties of the SMPC become relatively stable after some packaging/deployment cycles. Additionally, fiber microbuckling is the primary mechanism for obtaining a large strain in the bending of the SMPC. Moreover, an SMPC hinge has been fabricated, and a prototype of a solar array actuated by the SMPC hinge has been successfully deployed.read more
Citations
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Journal ArticleDOI
Shape-memory polymers and their composites: Stimulus methods and applications
TL;DR: Shape-memory polymers (SMPs) undergo significant macroscopic deformation upon the application of an external stimulus (e.g., heat, electricity, light, magnetism, moisture and even a change in pH value).
Journal ArticleDOI
Recent advances in shape–memory polymers: Structure, mechanism, functionality, modeling and applications
TL;DR: In this paper, a comprehensive review of shape-memory polymers (SMPs) and their derivatives, such as composites and compound structures, as well as their current applications are presented.
Journal ArticleDOI
A review of stimuli-responsive shape memory polymer composites
Harper Meng,Guoqiang Li +1 more
TL;DR: An up-to-date review on shape memory polymer composites with potential applications in biomedical devices, aerospace, textiles, civil engineering, bionics engineering, energy, electronic engineering, and household products is presented.
Journal ArticleDOI
Shape memory polymers and their composites in aerospace applications: a review
TL;DR: In this paper, shape memory polymers and their composites (SMPs and SMPCs) can respond to specific external stimulus and remember the original shape, and the stimulus methods are discussed to demonstrate the shape recovery effect.
Journal ArticleDOI
Shape memory polymers: Past, present and future developments
TL;DR: Shape memory polymers (SMPs) as mentioned in this paper represent a highly interesting class of materials and have gained significant interest in recent years, thus, the variety of materials investigated virtually exploded and several promising shape memory effects have been developed.
References
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Journal ArticleDOI
Light-induced shape-memory polymers
TL;DR: Polymers containing cinnamic groups can be deformed and fixed into pre-determined shapes—such as elongated films and tubes, arches or spirals—by ultraviolet light illumination and can recover their original shape at ambient temperatures when exposed to ultraviolet light of a different wavelength.
Journal ArticleDOI
Shape-memory polymers
Marc Behl,Andreas Lendlein +1 more
TL;DR: Shape-memory polymers as discussed by the authors are an emerging class of active polymers that can change their shape in a predefined way from shape A to shape B when exposed to an appropriate stimulus.
Journal ArticleDOI
Recent advances in shape memory polymers and composites : a review
TL;DR: Shape memory polymers (SMPs) belong to a class of smart polymers, which have drawn considerable research interest in recent years because of their applications in microelectromechanical systems, actuators, for self healing and health monitoring purposes, and in biomedical devices as mentioned in this paper.
Journal ArticleDOI
Water-driven programmable polyurethane shape memory polymer: Demonstration and mechanism
TL;DR: In this article, the authors demonstrate the new features of a polyurethane shape memory polymer: water-driven actuation and recovery in sequence (i.e., programmable).
Journal ArticleDOI
Electroactive Shape‐Memory Polyurethane Composites Incorporating Carbon Nanotubes
TL;DR: In this paper, Electroactive shape-memory composites were synthesized using conducting polyurethane (PU) composites and multi-walled carbon nanotubes (MWNTs) surface modification of the MWNTs by acid treatment improved the mechanical properties of the composites.